Trouble compiling servlet example

Hi All, I am trying out an example for servlets and I ran into trouble compiling the the file called "FormProcessingServlet.java" in tutorial located here: http://developer.java.sun.com/developer/onlineTraining/Servlets/Fundamentals/magercises/FormPostingAndProcessing/index.html
The exact problem happens in this line:
isStructure = context.getResourceAsStream(paramStructureFile[0]);
The error says:
FormProcessingServlet.java:127: cannot resolve symbol
symbol : method getResourceAsStream (java.lang.String)
location: interface javax.servlet.ServletContext
isStructure = context.getResourceAsStream(paramStructureFile[0]);
anyone else ran into this problem? How do I fix this? Thanks.

"cannot resolve symbol" means that the JVM can't find a particular class.
Adjust your systems classpath variable to include all the jar files that you use, I also add "." to include files in the current directory I'm working from.

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Trouble compiling servlets with J2SE 5

Hello,
I've been using Sun 1 Studio CE, and more recently, Netbeans 3.6, with J2SE 1.4.2. I have some basic swing applets and servlets that I wrote for my business' web site.
I recently downloaded and installed the new software bundle containing Netbeans 4.0 and J2SE 1.5. When I try to compile my servlets, I get a compiler error that packages javax.servlet.* and javax.servlet.http.* do not exist.
I reinstalled J2SE 1.4.2 and Netbeans 3.6 and the servlets compile fine.
Why is JDK 5 not able to find these packages? My understanding is that they're part of the Java Servlet API, which I never explicitly downloaded previously. Is that the piece of the puzzle that I'm missing? Please help!
Thanks

Thanks for your response...
What is interesting is that I never explicitly installed the Servlet API. Out of curiosity, I searched my computer for servlet*.jar and came up with 13 files including:
servlet-2.2.jar
servlet-2.3.jar
servlet-api-2.4.jar
These were located in subdirectories under Netbeans 3.6 and Tomcat 5.0.19. Therefore, I'm assuming that when I downloaded the JDK 1.4.2/Netbeans 3.6 bundle from the Java site, the Servlet API must have been part of the bundle.
****Let me check something...***
I've just done the same search for servlet*.jar on my test PC, which has the Netbeans 4.0/JDK 5 bundle installed. The same files exist, in the same locations(almost the same, anyway; the Tomcat and Netbeans 4 directory structures are a little different).
Both software bundles contain the same files, yet 1.4.2 compiles without any problems or additional configuration. In other words, I reinstalled the old 1.4.2/ Netbeans 3.6 bundle, took my existing source code, and started compiling.
Any ideas why the same isn't true for JDK 5/Netbeans 4? I know there are changes to the way Netbeans 4.0 deals with Class Paths, but I thought that was for the classes I've written. Shouldn't the compiler be able to find the servlet API, since it bundled/installed with everything else?
Thanks

Trouble compiling Servlets... simple problem?

PATH: %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\PROGRA~1\ULTRAE~1;C:\j2sdk1.4.0\bin;C:\j2sdkee1.3.1\bin
CLASSPATH: C:\j2sdkee1.3.1\lib\j2ee.jar;C:\j2sdkee1.3.1\lib\j2eetool.jar
Yet for some reason I can't compile anything using the servlet packages. I had been able to compile in the past, but I added a new value to the PATH and CLASSPATH variables to try to get Tomcat4.0.1 to work, and then this morning I ceased to be able to compile. So I went back to my old values and can't compile! (DataServlet.java:3: package javax.servlet does not exist
import javax.servlet.*; )
Please help. Thank you.

Ok, I just wrote this post, closed the command prompt I was trying to compile in, reopened another, and tried to compile again and it worked. Can someone tell me what this is about?

Trouble compiling jndi examples in Java Studio

I am having difficulty compiling the jndi example below.
I included the errors below the code.
Any ideas?
import javax.naming.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.naming.directory.*;
import java.util.Hashtable;
public class lookup {
/** Creates a new instance of lookup */
public lookup() {
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
Context ctx = new InitialContext(env);
methodist/pacs/ldap/lookup.java [26:1] <identifier> expected
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
^
methodist/pacs/ldap/lookup.java [26:1] package env does not exist
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
^
2 errors
Errors compiling lookup.

I learn a lesson about not expecting samples file to
be fully functional.That's true.

Compiled Tomcat Servlet Example & got JAR, not WAR?

Is there a basic reference on how to create a simple servlet with NetBeans 4.1 and deploy it to Tomcat?
When I created the project I chose Samples->Web->Tomcat Servlet Example, and yet it does not create a WAR file on compilation.
And of course once I'm past that I have to figure out how to edit the XML file, I gather.
I need a reference that will hold me by the hand and walk me through it once to kick start me.
After that I think I can make it without having to ask such newbie questions.

Hi,
not sure to what extent you are clear in build.xml file (done thru ant).
what i can tell you is, ant creates any archive file (be it .jar, .war, .ear) with the tasks named "jar" (<jar jarfile="yourfilename.jar"..>), "war" and "ear". But both war and ear are the extensions of the jar only.
You can achieve creation of any archive file with the jar task itself.
you need to take care of the following...
(1) you can /should edit the extension of the files at every stage.. first .jar and then .war and then .ear (if necessary) => basic flow
(2) at every step, you have to have a file inclusion inside the corresponding archive file..
say for example, for a .jar file you should include all the compiled .class files, and ejb-jar.xml (incase you use ejbs) and other built-in jar files....
In case of .war files (web archive) you should include the web.xml file, any static files (html, jsp etc), any tld files - it goes with your application's nature and requirement.....
fyi, i m including a sample build.xml file which i use for a webapplication, so it deals with war...
<?xml version="1.0" encoding="UTF-8"?>
<project name="ServletsReqDispFwd" default="deploy">
     <property name="top" value="."/>
     <property name="webinf" value="${top}/WEB-INF"/>
     <property name="lib" value="${webinf}/lib"></property>
     <property name="classes" value="WEB-INF/classes"/>
     <property name="jboss.dir" value="D:\jboss-3.2.2RC3\server\default\deploy"></property>
     <property name="tomcat.dir" value="D:\jakarta-tomcat-4.1.27\webapps"></property>
     <property name="warfile" value="ServletsReqDispFwd.war"></property>
     <property name="src" value="${top}/src"/>
     <property name="web.xml" value="WEB-INF/web.xml"/>
     <target name="package">
          <javac srcdir="${src}" destdir="${classes}"
                 listfiles="true" debug="true" verbose="true"
                      classpath="${lib}/*.jar"/>
          <war warfile="${warfile}" webxml="${web.xml}">
               <webinf dir="${top}">
                    <include name="**/*web*.xml"/>
                    <include name="**/*application*.xml"/>
                    <exclude name="src/**/*.xml"/>
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               <lib dir="${lib}">
                    <include name="*.jar"/>
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               <classes dir="${classes}" includes="**/*.class"></classes>
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          <delete dir="${classes}">
               <filename name="*.class"/>
          </delete>
          <delete>
               <fileset dir="${top}" includes="${warfile}"/>
          </delete>
          <delete>
               <fileset dir="${tomcat.dir}" includes="${warfile}"/>
          </delete>
     </target>
</project>hope this contribues to a certain extent to help you edit the buildfile (xml file as you go) to meet your requirement.....

J2EE tutorial (June 17 '04) servlet example compilation error

This is a copy of my previous post on the same topic, but this one has a more self-desriptive subject line. Apologies for duplication.
I am trying the first servlet example in the J2EE tutorial, June 17, 2004, pgs 443 - 448. I have completed all the steps as described. However, the URL results in the following error. I would like to point out that I am using the URL http://localhost:8081/bookstore1/bookstore (instead of port 8080 because the admin console suggests that port 8081 is an available http port):
Assistance would be appreciated.
HTTP Status 404 - /bookstore1/bookstore
type Status report
message /bookstore1/bookstore
description The requested resource (/bookstore1/bookstore) is not available.
Sun-Java-System/Application-Server-PE-8.0
I looked at the logviewer and there are 3 severe errors in the log:
1. Application Server
Log Entry Detail
Details
Timestamp: Aug 6, 2004 14:36:28.375
Log Level: SEVERE
Logger: javax.enterprise.system.container.web
Name-Value Pairs:
_ThreadID=12;
Record Number: 754
Message ID: WebModule[bookstore1]Exception sending context initialized event to listener instance of class listeners.ContextListener java.lang.NoClassDefFoundError
Complete Message
exception/OrderException
at listeners.ContextListener.contextInitialized(Unknown Source)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3679)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4140)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:873)
at org.apache.catalina.core.ContainerBase.access$000(ContainerBase.java:171)
at org.apache.catalina.core.ContainerBase$PrivilegedAddChild.run(ContainerBase.java:193)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:855)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:623)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:947)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:729)
at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:147)
at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:224)
at com.sun.enterprise.admin.event.AdminEventMulticaster.invokeModuleDeployEventListener(AdminEventMulticaster.java:488)
at com.sun.enterprise.admin.event.AdminEventMulticaster.handleModuleDeployEvent(AdminEventMulticaster.java:475)
at com.sun.enterprise.admin.event.AdminEventMulticaster.processEvent(AdminEventMulticaster.java:302)
at com.sun.enterprise.admin.event.AdminEventMulticaster.multicastEvent(AdminEventMulticaster.java:107)
at com.sun.enterprise.admin.server.core.mbean.config.ManagedServerInstance.multicastEvent(ManagedServerInstance.java:3880)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.enterprise.admin.server.core.jmx.Introspector.invokeMethodOn(Introspector.java:181)
at com.sun.enterprise.admin.server.core.mbean.config.AdminBase.invoke(AdminBase.java:86)
at com.sun.enterprise.admin.server.core.mbean.config.ConfigMBeanBase.invoke(ConfigMBeanBase.java:680)
at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:221)
at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:228)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:823)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:792)
at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:54)
at $Proxy1.invoke(Unknown Source)
at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:282)
at com.sun.enterprise.deployment.phasing.DeploymentService.multicastEvent(DeploymentService.java:341)
at com.sun.enterprise.deployment.phasing.ServerDeploymentTarget.sendStartEvent(ServerDeploymentTarget.java:284)
at com.sun.enterprise.deployment.phasing.StartPhase.runPhase(StartPhase.java:115)
at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:74)
at com.sun.enterprise.deployment.phasing.DeploymentService.executePhases(DeploymentService.java:233)
at com.sun.enterprise.deployment.phasing.DeploymentService.deploy(DeploymentService.java:150)
at com.sun.enterprise.admin.mbeans.ApplicationsConfigMBean.deploy(ApplicationsConfigMBean.java:275)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:287)
at com.sun.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:280)
at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:221)
at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:228)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:823)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:792)
at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:54)
at $Proxy1.invoke(Unknown Source)
at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:282)
at com.sun.enterprise.admin.jmx.remote.server.callers.InvokeCaller.call(InvokeCaller.java:38)
at com.sun.enterprise.admin.jmx.remote.server.MBeanServerRequestHandler.handle(MBeanServerRequestHandler.java:92)
at com.sun.enterprise.admin.jmx.remote.server.servlet.RemoteJmxConnectorServlet.processRequest(RemoteJmxConnectorServlet.java:69)
at com.sun.enterprise.admin.jmx.remote.server.servlet.RemoteJmxConnectorServlet.doPost(RemoteJmxConnectorServlet.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:768)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:289)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:500)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:311)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:205)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:102)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:192)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:156)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:569)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:261)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:215)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:156)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:583)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:569)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:200)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:156)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:180)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:582)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at com.sun.enterprise.webservice.EjbWebServiceValve.invoke(EjbWebServiceValve.java:134)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at com.sun.enterprise.security.web.SingleSignOn.invoke(SingleSignOn.java:254)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at com.sun.enterprise.web.VirtualServerValve.invoke(VirtualServerValve.java:209)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:569)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:161)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:156)
at com.sun.enterprise.web.VirtualServerMappingValve.invoke(VirtualServerMappingValve.java:166)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:154)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:569)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:979)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:692)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:647)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:589)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:691)
at java.lang.Thread.run(Thread.java:534)
2. Application Server
Log Entry Detail
Details
Timestamp: Aug 6, 2004 14:36:28.375
Log Level: SEVERE
Logger: tomcat.server./bookstore1.Context
Name-Value Pairs:
_ThreadID=12;
Record Number: 755
Message ID:
Complete Message
Error listenerStart
3. Application Server
Log Entry Detail
Details
Timestamp: Aug 6, 2004 14:36:28.375
Log Level: SEVERE
Logger: tomcat.server./bookstore1.Context
Name-Value Pairs:
_ThreadID=12;
Record Number: 756
Message ID:
Complete Message
Context startup failed due to previous errors

I had the same problem. It was caused by not including \j2eetutorial14\examples\web\bookstore\dist\bookstore.jar in the bookstore1.war. You may need to build the bookstore.jar file first if you haven�t already.

Not Able to compile Servlet from ?

Hi All,
I am not able to compile Servlet from my package:
1) I Have set the CLASSPATH Variable using below line in System Variables:
C:\CC4\prog\jakarta-tomcat-4.1.30\common\lib\servlet.jar
2) Also Set the CATALINA_HOME with value
C:\CC4\prog\jakarta-tomcat-4.1.30
as per above setting servlet should be compiled but still i m getting error message:
1) C:\CC4\prog\jakarta-tomcat-4.1.30\project\classes\com\example>javac ListenerTest
er.java
ListenerTester.java:17: cannot resolve symbol
symbol : class Dog
location: class com.example.ListenerTester
Dog dog = (Dog) getServletContext().getAttribute("dog");
^
ListenerTester.java:17: cannot resolve symbol
symbol : class Dog
location: class com.example.ListenerTester
Dog dog = (Dog) getServletContext().getAttribute("dog");
^
2 errors
2) Error while compiling other file:
C:\CC4\prog\jakarta-tomcat-4.1.30\project\classes\com\example>javac MyServletCon
textListener.java
MyServletContextListener.java:12: cannot resolve symbol
symbol : class Dog
location: class com.example.MyServletContextListener
Dog d = new Dog(dogBreed);
^
MyServletContextListener.java:12: cannot resolve symbol
symbol : class Dog
location: class com.example.MyServletContextListener
Dog d = new Dog(dogBreed);
^
2 errors
So what could be the posible solution here :
do reply !!!
please
Thanks
prabhat

I have added servlet.jar in the classpath. But the program is not compiling.The error message says that it can not find classes like ServletConfig, ServletException, Cookie etc. Please help.

Having trouble compiling

I am a total newbie at programming and I am having trouble compiling. In the MS-DOS prompt, I located the folder where my .java file is located and typed the following:
javac SampleProgram.java
I received a "Bad command or file name" error. I am typing the names correctly. I am using Java 2 SDK, Standard Edition Version 1.3.1. Am I doing something wrong?
Thanks for any help.

That should fix it. The problem is that DOS needs to know where to find the executable files like javac.exe
You can either set the path temporarily by typing
SET PATH=.;c:\jdk1.3.1\bin
at the command prompt each time you open a command window, or you can set it more permanently by adding it to your startup config. This will depend on your OS. On win 98 for example, there is an AUTOEXEC.BAT (usually with a SET PATH command already present). You could open this in notepad to add/change:
SET PATH=C:\WINDOWS
to
SET PATH=C:\WINDOWS;.;C:\JDK1.3.1\BIN
Reboot to make the changes take effect. Other OS's may have a special dialog to set this kind of command.
Hope this helps some.

Compiling servlets

I cant compile servlets.
Im using tomcat and I tried to compile the servlets in the example seperately but theres always errors. However when I execute the file from the example folder it runs just nicely.
This is an example of the error produced:
equestInfoExample.java:22: package javax.servlet does not exist
import javax.servlet.*;
^
RequestInfoExample.java:23: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
RequestInfoExample.java:25: package util does not exist
import util.HTMLFilter;
^
RequestInfoExample.java:33: cannot resolve symbol
symbol : class HttpServlet
location: class RequestInfoExample
public class RequestInfoExample extends HttpServlet {
^
RequestInfoExample.java:38: cannot resolve symbol
symbol : class HttpServletRequest
location: class RequestInfoExample
public void doGet(HttpServletRequest request,
^
RequestInfoExample.java:39: cannot resolve symbol
symbol : class HttpServletResponse
location: class RequestInfoExample
HttpServletResponse response)
^
RequestInfoExample.java:40: cannot resolve symbol
symbol : class ServletException
location: class RequestInfoExample
throws IOException, ServletException
^
RequestInfoExample.java:105: cannot resolve symbol
symbol : class HttpServletRequest
location: class RequestInfoExample
public void doPost(HttpServletRequest request,
^
RequestInfoExample.java:106: cannot resolve symbol
symbol : class HttpServletResponse
location: class RequestInfoExample
HttpServletResponse response)
^
RequestInfoExample.java:107: cannot resolve symbol
symbol : class ServletException
location: class RequestInfoExample
throws IOException, ServletException
^
RequestInfoExample.java:76: cannot resolve symbol
symbol : variable HTMLFilter
location: class RequestInfoExample
out.println(HTMLFilter.filter(request.getRequestURI()));
^
RequestInfoExample.java:84: cannot resolve symbol
symbol : variable HTMLFilter
location: class RequestInfoExample
out.println(HTMLFilter.filter(request.getPathInfo()));
^
12 errors
why is this.
Please someone help me here!!
Thanks in advance.

what ever the above steps had i done i got the same error
httpservletrequest unable to resolve symbol
what i made is mycomputer>properties>advaced>envirinment variables>path>C:\Program Files\Apache Software Foundation\Tomcat 5.0\common\lib\servlet-api.*;(as am i using tomcat 5)and
in cmd prompt set classpath=C:\Program Files\Apache Software Foundation\Tomcat 5.0\common\lib\servlet-api.*;and
in cmd prompt set path=C:\Program Files\Apache Software Foundation\Tomcat 5.0\common\lib\servlet-api.*;got the same result unable to resolve the symbol pls i need some ones help

Can I compiler servlet with java compiler?

Can I compiler servlet with java compiler?
Here is an example of it:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class HelloWorldServlet extends HttpServlet
          protected void doGet(HttpServletRequest request,
          HttpServletResponse response) throws ServletException , IOException
                    response.setContentType("text/html");
                    PrintWriter out = response.getWriter();
                    StringBuffer sb = new StringBuffer();
                    sb.append("<html><body><h1>");
                    sb.append("Hello World");
                    sb.append("</h1></body></html>");
                    out.print(sb.toString());
                    out.close();
     }

Can I compiler servlet with java compiler?
yes.
just include the correct jarfiles in your classpath.

Unable to compile servlets

I am unable to compile a java servlet program.
the message thrown ou by the compiler is
"Class java.servlet not found in import"

You need to find where the servlet.jar file is on your system. For example i'm running tomcat on a linux machine, this is what i type to compile servlets.
javac -classpath /var/tomcat4/common/lib/servlet.jar yourFile.java

Compile Servlet

when i try to compile servlet i got error message. it can't be identify servlet classes. why is that?
some books mention about class path to fix that problem. but i can't understand.
can any one explain little bit deep?
* i am using windows xp and tomcat server.
-thanks-

hi,
for example your tomcat in c:\tomcat5.0 means
set classpath=c:\tomcat5.0\common\lib\servlet-api.jar
or
set classpath=c:\tomcat4.1\common\lib\servlet.jar
or find servlet.jar or servlet-api.jar (thats depend upon your tomcat version)
give classpath for that jar file
and compile

Am getting the following error while running the servlet example

Hi,
am getting the following error while running the servlet example
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
     edu.dao.StudentDao.insertStudent(StudentDao.java:18)
     edu.servlet.StudentServlet.doGet(StudentServlet.java:25)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.20 logs.
Thanks
//sreekanth

Hi,
the following code i have written in StudentDao
package edu.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import org.apache.commons.dbutils.DbUtils;
import edu.model.Student;
import edu.util.DBUtil;
public class StudentDao {
     public void insertStudent(Student student) {
          String stuQuery = "INSERT INTO STUDENT VALUES(?,?)";
          Connection connection = DBUtil.getConnection();
          PreparedStatement preparedStatement = null;
          try {
               preparedStatement = connection.prepareStatement(stuQuery);
               preparedStatement.setString(1,student.getStudentNo());
               preparedStatement.setString(2, student.getStudentName());
               preparedStatement.executeUpdate();
          } catch(SQLException e){
               System.out.println("..Sql exception......");
          }finally {
               DbUtils.closeQuietly(connection,preparedStatement,null);
}

Unable to compile servlet files in javac

i am unable to compile servlet *.java files in javac.as far as i can see my path is correct.
Kindly provide a solution as soon as possible.
My jdk1.3 is in my c drive and my tomcat in my d drive.
if you are able to compile kindly let me know your path.
it says symbol not resolved.i think that it is unable to import from javax

Assuming that your jdk is in c drive as c:\jdk1.3 set the path and the classpath like as shown below. Remember that you have to set the classpath for the classes in the javax.servlet and javax.servlet.http packages. I know how to do it for JavaWebServer. JavaWebServer has a jar called servlet.jar that contains all these classes. What you need to do is to put this jar file in your classpath. There will be a similar jar file for Tomcat server also. You need to refer the Tomcat server documentation for that.
The path and the classpath have to be set like this...
d:\>path=%path%;.;c:\jdk1.3\bin;
d:\>set classpath=%classpath%;.;c:\jdk1.3\lib;c:\JavaWebServer2.0\lib\servlet.jar;
assuming tht JWS is installed in c:\JavaWebServer2.0
Also note that there should be no spaces in between while setting the classpath. In your case you have to change the last part of the classpath to customize your requirement.
Hope that will help.
Regards
Jaydeep

Trouble Compiling my Email-client

Hi
I have written this email -client, but have some trouble compiling it !
Then I try to compile it the following errors:
MailClient.java:350: <identifier> expected
public syncronize void mails(String t){
^
MailClient.java:727: ';' expected
private class myWindowListener extends WindowAdapter{
^
MailClient.java:747: '}' expected
3 errors.
What do I need to change to correct these errors ?
I hope that there is somebody out there who can help me get my program to work.
Thanks in advance.
Sincrely Yours
Fred
import java.io.*;
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.event.*;
public class MailClient extends JFrame implements ActionListener{
private Sendman mySendman;
private Letterman myLetterman;
public Writer myWrite;
public Reader myReader;
public Composer myComposer;
private Setup mySetup;
public Addressbook myAdressbook;
private FixTask myFixTask;
private Filter myFilter;
private Info myInfo;
public Vector mailIndexVector = new Vector();
public Vector filterIndexVector = new Vector();
public Vector folderVector = new Vector();
private JPanel tArea, trae, icon, tField;
private JTextArea ta;
private JScrollPane view, treeScroll;
private JTree tree;
public JTextField tf;
private JSplitPane split;
private Dimension Size;
private MailClient myMailClient;
private String mailBody, subject, from;
public boolean fromOutbox = false;
public boolean viewSource = false;
public static void main (String[] args) {
     MailClient myMailClient = new MailClient();
public MailClient() {
     super("Mail-Client");
     ImageIcon linux = new ImageIcon("linux.gif");
     this.setIconImage(linux.getImage());
     icon = new JPanel();
     icon.setLayout(new FlowLayout(FlowLayout.LEFT));
     ImageIcon neu = new ImageIcon("getmail.gif");
     JButton neueMails = new JButton(neu);
     newMails.setActionCommand("Getting new Mails");
     newMails.addActionListener(this);
     newMails.setBorderPainted(false);
     newMails.setToolTipText("Getting new Mails");
     ImageIcon cr = new ImageIcon("creator.gif");
     JButton creator = new JButton(cr);
     creator.setActionCommand("Creator open");
     creator.addActionListener(this);
     creator.setBorderPainted(false);
     creator.setToolTipText("Creator open");
     JButton rep = new JButton(new ImageIcon("reply.gif"));
     rep.setActionCommand("rep");
     rep.addActionListener(this);
     rep.setBorderPainted(false);
     rep.setToolTipText("Reply");
     JButton fwd = new JButton(new ImageIcon("fwd.gif"));
     fwd.setActionCommand("fwd");
     fwd.addActionListener(this);
     fwd.setBorderPainted(false);
     fwd.setToolTipText("Forward");
     JButton ein = new JButton(new ImageIcon("settings.gif"));
     ein.setActionCommand("settings open");
     ein.addActionListener(this);
     ein.setBorderPainted(false);
ein.setToolTipText("Setting open");
JButton adr = new JButton(new ImageIcon("adressbook.gif"));
adr.setActionCommand("adr");
adr.addActionListener(this);
adr.setBorderPainted(false);
adr.setToolTipText("Addressbook");
JButton lo = new JButton(new ImageIcon("trash.gif"));
lo.setActionCommand("trash");
lo.addActionListener(this);
lo.setBorderPainted(false);
lo.setToolTipText("trash");
JButton in = new JButton(new ImageIcon("info.gif"));
in.setActionCommand("Information");
in.addActionListener(this);
in.setBorderPainted(false);
in.setToolTipText("Information");
icon.add(newMails);
icon.add(creator);
icon.add(rep);
icon.add(fwd);
icon.add(set);
icon.add(adr);
icon.add(lo);
icon.add(in);
Vector h1 = myLeser.lese("Summary.4on");
for(int i=0; i<h1.size(); i+=7){
String id = h1.elementAt(i).toString();
String fo = h1.elementAt(i+1).toString();
String su = h1.elementAt(i+2).toString();
String fr = h1.elementAt(i+3).toString();
String to = h1.elementAt(i+4).toString();
String da = h1.elementAt(i+5).toString();
String re = h1.elementAt(i+6).toString();
MailIndex index = new MailIndex(id, fo, su, fr, to, da, re);
mailIndexVector.addElement(index);
Vector h2 = myReader.read("Filter.4on");
for(int j=0; j<h2.size(); j+=3){
String fo = h2.elementAt(j).toString();
String from = h2.elementAt(j+1).toString();
String te = h2.elementAt(j+2).toString();
FilterIndex index = new FilterIndex(fo, from, te);
filterIndexVector.addElement(index);
folderVector = myReader.read("Folder.4on");
DefaultMutableTreeNode top, inbox, outbox, sentbox, trash;
top = new DefaultMutableTreeNode("mails");
top.add(inbox = new DefaultMutableTreeNode("Inbox"));
for(int i=0; i<mailIndexVector.size(); i++){
MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
if (m.folder.equals("Inbox"))
     inbox.add(new DefaultMutableTreeNode(m));
top.add(outbox = new DefaultMutableTreeNode("Outbox"));
for(int i=0; i<mailIndexVector.size(); i++){
MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
if (m.folder.equals("Outbox")){
     outbox.add(new DefaultMutableTreeNode(m));
top.add(sentbox = new DefaultMutableTreeNode("Sentbox"));
for(int i=0; i<mailIndexVector.size(); i++){
MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
if (m.folder.equals("Sentbox"))
     sentbox.add(new DefaultMutableTreeNode(m));
for(int j=0; j<folderVector.size(); j++){
top.add(trash =
     new DefaultMutableTreeNode(folderVector.elementAt(j).toString()));
for(int i=0; i<mailIndexVector.size(); i++){
     MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
     if (m.folder.equals(folderVector.elementAt(j).toString()))
     trash.add(new DefaultMutableTreeNode(m));
tree = new JTree(top);
tree.getSelectionModel().setSelectionMode
(TreeSelectionModel.SINGLE_TREE_SELECTION);
tree.addTreeSelectionListener(new myTreeSelectionListener());
treeScroll = new JScrollPane(tree);
treeScroll.setFont(new Font("Monospaced",Font.PLAIN,6));
baum.add("Center", treeScroll);
MainMenu menuBar = new MainMenu(this, this);
setJMenuBar(menuBar);
setVisible(true);
public void mailsFetcher() {
myLetterman = new Letterman(this, mySetup);
myLetterman.start();
public void treeNewSign(){
trae.remove(treeScroll);
DefaultMutableTreeNode top, inbox, outbox, sentbox, trash;
top = new DefaultMutableTreeNode("mails");
top.add(inbox = new DefaultMutableTreeNode("Inbox"));
for(int i=0; i<mailIndexVector.size(); i++){
MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
if (m.folder.equals("Inbox"))
     inbox.add(new DefaultMutableTreeNode(m));
top.add(outbox = new DefaultMutableTreeNode("Outbox"));
for(int i=0; i<mailIndexVector.size(); i++){
MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
if (m.folder.equals("Outbox"))
     outbox.add(new DefaultMutableTreeNode(m));
top.add(sentbox = new DefaultMutableTreeNode("Sentbox"));
for(int i=0; i<mailIndexVector.size(); i++){
MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
if (m.folder.equals("Sentbox"))
     sentbox.add(new DefaultMutableTreeNode(m));
for(int j=0; j<folderVector.size(); j++){
top.add(trash =
     new DefaultMutableTreeNode(folderVector.elementAt(j).toString()));
for(int i=0; i<mailIndexVector.size(); i++){
     MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
     if (m.folder.equals(folderVector.elementAt(j).toString()))
     trash.add(new DefaultMutableTreeNode(m));
tree = new JTree(top);
tree.getSelectionModel().setSelectionMode
(TreeSelectionModel.SINGLE_TREE_SELECTION);
tree.addTreeSelectionListener(new myTreeSelectionListener());
treeScroll = new JScrollPane(tree);
trae.add("Center", treeScroll);
trae.repaint();
setVisible(true);
public void menuNewSign(){
setJMenuBar(new MainMenu(this, this));
setVisible(true);
public String fromFilter (String t){
String myFrom = "";
int start, end;
int a = t.indexOf("From:");
if (a != -1){
start = a + 6;
ende = t.indexOf("\n",start);
myFrom = t.substring(start,end);
return myFrom;
public String toFilter (String t){
String myTo = "";
int start, e1, e2, end;
int a = t.indexOf("To:");
if (a != -1){
start = a + 4;
end = t.indexOf("\n",start);
myTo = t.substring(start,end);
e1 = end + 1;
if(t.substring(e1,e1+1).equals(" ")){
     while(t.substring(e1,e1+1).equals(" ")){
     while(t.substring(e1,e1+1).equals(" "))
     e1++;
     e2 = t.indexOf("\n",e1);
     myTo += " " + t.substring(e1,e2);
     e1 = e2 + 1;
return myTo;
public String dateFilter (String t){
String myDate = "";
int start, end;
int a = t.indexOf("Date:");
if (a != -1){
start = a + 6;
end = t.indexOf("\n",start);
myDate = t.substring(start,end);
return myDate;
public String subjectFilter (String t){
String mySubject = "";
int start, end;
int a = t.indexOf("Subject:");
if (a != -1){
start = a + 9;
end = t.indexOf("\n",start);
mySubject = t.substring(start,end);
return mySubject;
public String mailFilter (String t){
String myMail = "";
int start = 0, end = t.length();
start = t.indexOf("\n\n") + 2;
if (start != 1){
int a = t.indexOf("\n\n" ,start);
if (a != -1){
     if (t.indexOf(".",a+2) == a+2)
     if (t.indexOf("\n",a+3) == a+3)
     start = a;
myMail = t.substring(start,end);
return myMail;
public void mailsRemark(String file){
String mail = "", t = "";
Vector mailVector = myReader.read(file);
for (int i=0; i<mailVector.size(); i++)
t += (String)mailVector.elementAt(i) + "\n";
from = fromFilter(t);
subject = subjectFilter(t);
mailBody = mailFilter(t);
mail += "Subject: " + subject + "\n";
mail += "Date: " + dateFilter(t) + "\n";
mail += "From: " + from + "\n";
mail += "To: " + toFilter(t) + "\n";
mail += "\n" + mailBody;
if(viewSource == true)
ta.setText(t);
else
ta.setText(mail);
public syncronize void mails(String t){
Status myStatus = new Status(this,t);
myStatus.start();
public void delete(){
if(tree.getLastSelectedPathComponent() != null){
DefaultMutableTreeNode node =
     (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
if(node.isLeaf()){
     Object nodeInfo = node.getUserObject();
     if(nodeInfo instanceof MailIndex){
     MailIndex index = (MailIndex)nodeInfo;
     mailIndexVector.removeElement(index);
     int count = 0;
     for(int j=0; j<mailIndexVector.size(); j++){
     MailIndex index1 = (MailIndex)mailIndexVector.elementAt(j);
     String id = index1.mailId;
     if(id.equals(index.mailId))
     count++;
     if(count == 0){
     File home = new File(".");
     String mailsRemark = "." + home.separator + "data";
     File datei = new File(mailsRemark, index.mailId);
     datei.delete();
     treeNewSign();
     menuNewSign();
     else{
     String t = (String)nodeInfo;
     boolean toDelete = false;
     for (int i=0; i<folderVector.size(); i++){
     if(folderVector.elementAt(i).equals(t)){
     folderVector.removeElement(t);
     konnteLoeschen = true;
     if(toDelete == false){
     message("This folder can not be deleted!");
     treeNewSign();
else
     message("Folder is not Empty! Please delete Your mails.");
else
message("No Mails where selected to be deleted!");
public void forward(){
if(from != null){
creatorOeffnen();
myCreator.tfSb.setText("Fwd to: " + subject);
myCreator.ta.setText("<" + from + ">" + " wrote:\n\n" + mailBody +
               "\n\n>\n>\n\n");
public void reply(){
if(from != null){
creatorOeffnen();
myCreator.tfTo.setText(from);
myCreator.tfSb.setText("Reply to: " + subject);
myCreator.ta.setText("<" + from + ">" + " wrote:\n\n" + mailBody +
               "\n\n>\n>\n\n");
public void end(){
String h = "";
for (int i=0; i<mailIndexVector.size(); i++){
MailIndex index = (MailIndex)mailIndexVector.elementAt(i);
h += index.mailId + "\n";
h += index.folder + "\n";
h += index.subject + "\n";
h += index.from + "\n";
h += index.to + "\n";
h += index.date + "\n";
h += index.read + "\n";
myWriter.writer(h,"Summary.4on");
String w = "";
for (int l=0; l<filterIndexVector.size(); l++){
FilterIndex index = (FilterIndex)filterIndexVector.elementAt(l);
w += index.folder + "\n";
w += index.from + "\n";
w += index.text + "\n";
myWriter.write(w,"Filter.4on");
String k = "";
for(int j=0; j<folderVector.size(); j++)
k += folderVector.elementAt(j).toString() + "\n";
myWriter.writer(k,"Folder.4on");
String t = "";
for (int l=0; l<myAddressBook.addressIndexVector.size(); l++){
AddressIndex aindex =
     (AddressIndex)myAdressBook.adressIndexVector.elementAt(l);
t += aindex.alias + "\n";
t += aindex.email + "\n";
myWriter.write(t,"Address.4on");
setVisible(false);
dispose();
System.exit(0);
public void filterOpen(){
boolean test = false;
if(tree.getLastSelectedPathComponent() != null){
DefaultMutableTreeNode node =
     (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
Object nodeInfo = node.getUserObject();
if(nodeInfo instanceof String){
     myFilter.folder = (String)nodeInfo;
     for(int i=0; i<filterIndexVector.size(); i++){
     FilterIndex h = (FilterIndex)filterIndexVector.elementAt(i);
     if(h.folder.equals(nodeInfo)){
     myFilter.index = h;
     test = true;
     if(h.from.equals("")){
     myFilter.box1 = false;
     myFilter.fTf.setText("");
     myFilter.fBox.setSelected(false);
     myFilter.fTf.setEditable(false);
     else{
     myFilter.box1 = true;
     myFilter.fTf.setText(h.from);
     myFilter.fBox.setSelected(true);
     myFilter.fTf.setEditable(true);
     if(h.text.equals("")){
     myFilter.box2 = false;
     myFilter.tTf.setText("");
     myFilter.tBox.setSelected(false);
     myFilter.tTf.setEditable(false);
     else{
     myFilter.box2 = true;
     myFilter.tTf.setText(h.text);
     myFilter.tBox.setSelected(true);
     myFilter.tTf.setEditable(true);
     break;
myFilter.setVisible(true);
myFilter.fBox.requestFocus();
else
meldung("No selection");
public void sendOutbox(){
fromOutbox = true;
int i;
Block1:
for(i=0; i<mailIndexVector.size(); i++){
MailIndex index = (MailIndex)mailIndexVector.elementAt(i);
if(index.folder.equals("Outbox")){
     Vector mailVector = myReader.read(index.mailId);
Block2:
     for(int j=0; j<mailVector.size(); j++){
     String m = (String)mailVector.elementAt(j);
     if(m.indexOf("Subject:") != -1){
     for(int k=0; k<=j+1; k++){
     mailVector.removeElementAt(0);
     break Block2;
     Vector toVector = new Vector();
     int tEnd = 1;
     String line = "";
     String t = index.to;
     while (tEnd != -1){
     tEnd = t.indexOf(", ");
     if (tEnd == -1)
     line = t;
     else
     line = t.substring(0,tEnd);
     t = t.substring(tEnd + 1);
     toVector.addElement(line);
     File home = new File(".");
     String mailsVerzeichnis = "." + home.separator + "data";
     File datei = new File(mailsRemark, index.mailId);
     datei.delete();
     mySendman = new Sendman(mailVector, toVector, index.subject,
     ailsAnzeig               mySetup, this);
     mySendman.start();
     mailIndexVector.removeElement(index);
     break Block1;
if(i == mailIndexVector.size())
fromOutbox = false;
treeNewSign();
public void partion(String cmd){
if(tree.getLastSelectedPathComponent() != null){
DefaultMutableTreeNode node =
     (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
Object nodeInfo = node.getUserObject();
if(nodeInfo instanceof MailIndex){
     MailIndex index = (MailIndex)nodeInfo;
     index.folder = cmd.substring(13).toString();
     treeNewSign();
else
meldung("No mails to partion!");
public void SetupOpen(){
if (mySetup.savePassword == false)
mySetup.pTf.setText("");
mySetup.setVisible(true);
mySetup.aTf.requestFocus();
public void addressbookOpen(){
myAddressBook.setVisible(true);
myAdressBook.tree.requestFocus();
public void creatorOpen(){
myCreator.setVisible(true);
myCreator.tfTo.requestFocus();
public void actionPerformed(ActionEvent event){
Object obj = event.getSource();
if (obj instanceof JMenuItem){
String cmd = event.getActionCommand();
if (cmd.equals("New fetched")){
     mailsfetch();
else if (cmd.equals("Written new mails")) {
     creatorOpen();
else if (cmd.equals("Reply")) {
     reply();
else if (cmd.equals("Forward")) {
     forward();
else if (cmd.equals("Outbox")) {
     sendOutbox();
else if (cmd.equals("Delete")) {
     delete();
else if ((cmd.length() >13) &&
     (cmd.substring(0,13).equals("Sorting-"))){
     sorting(cmd);
else if (cmd.equals("Using Addressbook")){
     addressbookOpen();
else if (cmd.equals("Filter working")){
     filterOpen();
else if (cmd.equals("New Order")){
     myFixTask.tf.setText("");
     myFixTask.setVisible(true);
     myFixTask.tf.requestFocus();
else if (cmd.equals("delete")){
     delete();
else if ((cmd.length() >7) &&
     (cmd.substring(0,7).equals("nobody"))){
     if(viewSource == false){
     viewSource = true;
     menuNewSign();
     if(tree.getLastSelectedPathComponent() != null){
     DefaultMutableTreeNode node =
     (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
     Object nodeInfo = node.getUserObject();
     if(nodeInfo instanceof MailIndex){
     MailIndex index = (MailIndex)nodeInfo;
     mailsRemark(index.mailId);
     else{
     viewSource = false;
     menuNeuZeichnen();
     if(tree.getLastSelectedPathComponent() != null){
     DefaultMutableTreeNode node =
     (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
     Object nodeInfo = node.getUserObject();
     if(nodeInfo instanceof MailIndex){
     MailIndex index = (MailIndex)nodeInfo;
     mailsRemark(index.mailId);
else if (cmd.equals("Setup")){
     SetupOpen();
else if (obj instanceof JButton){
String cmd = event.getActionCommand();
if (cmd.equals("aga")){
     mailsHolen();
else if (cmd.equals("Creator Open")){
     creatorOpem();
else if(cmd.equals("rep")){
     reply();
else if(cmd.equals("fwd")){
     forward();
else if(cmd.equals("Setup Open")){
SetupOpen();
else if(cmd.equals("adr")){
     addressbookOpen();
else if(cmd.equals("delete")){
     delete();
else if(cmd.equals("Information")){
     myInfo.setVisible(true);
     myInfo.b.requestFocus();
private class myWindowListener extends WindowAdapter{
public void windowClosing(WindowEvent event){
end();
private class myTreeSelectionListener implements TreeSelectionListener{
public void valueChanged(TreeSelectionEvent e) {
DefaultMutableTreeNode node =
     (DefaultMutableTreeNode)(e.getPath().getLastPathComponent());
Object nodeInfo = node.getUserObject();
if(nodeInfo instanceof MailIndex){
     MailIndex index = (MailIndex)nodeInfo;
     mailsAnzeigen(index.mailId);
     index.read = "Yes";

Some suggestions:
1. as the others stated- you should really post specific questions rather than 1 huge ugly class!
2. use code tags
3. get a decent IDE- it would take about 1 minute to then see where the error is-
4. the rrors were just misspelled 'synchronized' and missing argument ','
5. Try not to make such huge classes!!- Try to follow certain coding "patterns"- like MVC- and not stick everything in 1 class- separate the functionality- it makes coding much easier!
here is fixed code (at least gets rid of those last errors):
import java.io.*;
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.event.*;
public class MailClient extends JFrame implements ActionListener{
private Sendman mySendman;
private Letterman myLetterman;
public Writer myWrite;
public Reader myReader;
public Composer myComposer;
private Setup mySetup;
public Addressbook myAdressbook;
private FixTask myFixTask;
private Filter myFilter;
private Info myInfo;
public Vector mailIndexVector = new Vector();
public Vector filterIndexVector = new Vector();
public Vector folderVector = new Vector();
private JPanel tArea, trae, icon, tField;
private JTextArea ta;
private JScrollPane view, treeScroll;
private JTree tree;
public JTextField tf;
private JSplitPane split;
private Dimension Size;
private MailClient myMailClient;
private String mailBody, subject, from;
public boolean fromOutbox = false;
public boolean viewSource = false;
public static void main (String[] args) {
    MailClient myMailClient = new MailClient();
public MailClient() {
    super("Mail-Client");
    ImageIcon linux = new ImageIcon("linux.gif");
    this.setIconImage(linux.getImage());
    icon = new JPanel();
    icon.setLayout(new FlowLayout(FlowLayout.LEFT));
    ImageIcon neu = new ImageIcon("getmail.gif");
    JButton neueMails = new JButton(neu);
    newMails.setActionCommand("Getting new Mails");
    newMails.addActionListener(this);
    newMails.setBorderPainted(false);
    newMails.setToolTipText("Getting new Mails");
    ImageIcon cr = new ImageIcon("creator.gif");
    JButton creator = new JButton(cr);
    creator.setActionCommand("Creator open");
    creator.addActionListener(this);
    creator.setBorderPainted(false);
    creator.setToolTipText("Creator open");
    JButton rep = new JButton(new ImageIcon("reply.gif"));
    rep.setActionCommand("rep");
    rep.addActionListener(this);
    rep.setBorderPainted(false);
    rep.setToolTipText("Reply");
    JButton fwd = new JButton(new ImageIcon("fwd.gif"));
    fwd.setActionCommand("fwd");
    fwd.addActionListener(this);
    fwd.setBorderPainted(false);
    fwd.setToolTipText("Forward");
    JButton ein = new JButton(new ImageIcon("settings.gif"));
    ein.setActionCommand("settings open");
    ein.addActionListener(this);
    ein.setBorderPainted(false);
    ein.setToolTipText("Setting open");
    JButton adr = new JButton(new ImageIcon("adressbook.gif"));
    adr.setActionCommand("adr");
    adr.addActionListener(this);
    adr.setBorderPainted(false);
    adr.setToolTipText("Addressbook");
    JButton lo = new JButton(new ImageIcon("trash.gif"));
    lo.setActionCommand("trash");
    lo.addActionListener(this);
    lo.setBorderPainted(false);
    lo.setToolTipText("trash");
    JButton in = new JButton(new ImageIcon("info.gif"));
    in.setActionCommand("Information");
    in.addActionListener(this);
    in.setBorderPainted(false);
    in.setToolTipText("Information");
    icon.add(newMails);
    icon.add(creator);
    icon.add(rep);
    icon.add(fwd);
    icon.add(set);
    icon.add(adr);
    icon.add(lo);
    icon.add(in);
    Vector h1 = myLeser.lese("Summary.4on");
    for(int i=0; i<h1.size(); i+=7){
      String id = h1.elementAt(i).toString();
      String fo = h1.elementAt(i+1).toString();
      String su = h1.elementAt(i+2).toString();
      String fr = h1.elementAt(i+3).toString();
      String to = h1.elementAt(i+4).toString();
      String da = h1.elementAt(i+5).toString();
      String re = h1.elementAt(i+6).toString();
      MailIndex index = new MailIndex(id, fo, su, fr, to, da, re);
      mailIndexVector.addElement(index);
    Vector h2 = myReader.read("Filter.4on");
    for(int j=0; j<h2.size(); j+=3){
      String fo = h2.elementAt(j).toString();
      String from = h2.elementAt(j+1).toString();
      String te = h2.elementAt(j+2).toString();
      FilterIndex index = new FilterIndex(fo, from, te);
      filterIndexVector.addElement(index);
    folderVector = myReader.read("Folder.4on");
    DefaultMutableTreeNode top, inbox, outbox, sentbox, trash;
    top = new DefaultMutableTreeNode("mails");
    top.add(inbox = new DefaultMutableTreeNode("Inbox"));
    for(int i=0; i<mailIndexVector.size(); i++){
      MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
      if (m.folder.equals("Inbox"))
        inbox.add(new DefaultMutableTreeNode(m));
    top.add(outbox = new DefaultMutableTreeNode("Outbox"));
    for(int i=0; i<mailIndexVector.size(); i++){
      MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
      if (m.folder.equals("Outbox")){
        outbox.add(new DefaultMutableTreeNode(m));
    top.add(sentbox = new DefaultMutableTreeNode("Sentbox"));
    for(int i=0; i<mailIndexVector.size(); i++){
      MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
      if (m.folder.equals("Sentbox"))
        sentbox.add(new DefaultMutableTreeNode(m));
    for(int j=0; j<folderVector.size(); j++){
      top.add(trash =
      new DefaultMutableTreeNode(folderVector.elementAt(j).toString()));
      for(int i=0; i<mailIndexVector.size(); i++){
        MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
        if (m.folder.equals(folderVector.elementAt(j).toString()))
          trash.add(new DefaultMutableTreeNode(m));
    tree = new JTree(top);
    tree.getSelectionModel().setSelectionMode
    (TreeSelectionModel.SINGLE_TREE_SELECTION);
    tree.addTreeSelectionListener(new myTreeSelectionListener());
    treeScroll = new JScrollPane(tree);
    treeScroll.setFont(new Font("Monospaced",Font.PLAIN,6));
    baum.add("Center", treeScroll);
    MainMenu menuBar = new MainMenu(this, this);
    setJMenuBar(menuBar);
    setVisible(true);
public void mailsFetcher() {
    myLetterman = new Letterman(this, mySetup);
    myLetterman.start();
public void treeNewSign(){
    trae.remove(treeScroll);
    DefaultMutableTreeNode top, inbox, outbox, sentbox, trash;
    top = new DefaultMutableTreeNode("mails");
    top.add(inbox = new DefaultMutableTreeNode("Inbox"));
    for(int i=0; i<mailIndexVector.size(); i++){
      MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
      if (m.folder.equals("Inbox"))
        inbox.add(new DefaultMutableTreeNode(m));
    top.add(outbox = new DefaultMutableTreeNode("Outbox"));
    for(int i=0; i<mailIndexVector.size(); i++){
      MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
      if (m.folder.equals("Outbox"))
        outbox.add(new DefaultMutableTreeNode(m));
    top.add(sentbox = new DefaultMutableTreeNode("Sentbox"));
    for(int i=0; i<mailIndexVector.size(); i++){
      MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
      if (m.folder.equals("Sentbox"))
        sentbox.add(new DefaultMutableTreeNode(m));
    for(int j=0; j<folderVector.size(); j++){
      top.add(trash =
      new DefaultMutableTreeNode(folderVector.elementAt(j).toString()));
      for(int i=0; i<mailIndexVector.size(); i++){
        MailIndex m = (MailIndex)mailIndexVector.elementAt(i);
        if (m.folder.equals(folderVector.elementAt(j).toString()))
          trash.add(new DefaultMutableTreeNode(m));
    tree = new JTree(top);
    tree.getSelectionModel().setSelectionMode
    (TreeSelectionModel.SINGLE_TREE_SELECTION);
    tree.addTreeSelectionListener(new myTreeSelectionListener());
    treeScroll = new JScrollPane(tree);
    trae.add("Center", treeScroll);
    trae.repaint();
    setVisible(true);
public void menuNewSign(){
    setJMenuBar(new MainMenu(this, this));
    setVisible(true);
public String fromFilter (String t){
    String myFrom = "";
    int start, end;
    int a = t.indexOf("From:");
    if (a != -1){
      start = a + 6;
      ende = t.indexOf("\n",start);
      myFrom = t.substring(start,end);
    return myFrom;
public String toFilter (String t){
    String myTo = "";
    int start, e1, e2, end;
    int a = t.indexOf("To:");
    if (a != -1){
      start = a + 4;
      end = t.indexOf("\n",start);
      myTo = t.substring(start,end);
      e1 = end + 1;
      if(t.substring(e1,e1+1).equals(" ")){
        while(t.substring(e1,e1+1).equals(" ")){
          while(t.substring(e1,e1+1).equals(" "))
            e1++;
          e2 = t.indexOf("\n",e1);
          myTo += " " + t.substring(e1,e2);
          e1 = e2 + 1;
    return myTo;
public String dateFilter (String t){
    String myDate = "";
    int start, end;
    int a = t.indexOf("Date:");
    if (a != -1){
      start = a + 6;
      end = t.indexOf("\n",start);
      myDate = t.substring(start,end);
    return myDate;
public String subjectFilter (String t){
    String mySubject = "";
    int start, end;
    int a = t.indexOf("Subject:");
    if (a != -1){
      start = a + 9;
      end = t.indexOf("\n",start);
      mySubject = t.substring(start,end);
    return mySubject;
public String mailFilter (String t){
    String myMail = "";
    int start = 0, end = t.length();
    start = t.indexOf("\n\n") + 2;
    if (start != 1){
      int a = t.indexOf("\n\n" ,start);
      if (a != -1){
        if (t.indexOf(".",a+2) == a+2)
          if (t.indexOf("\n",a+3) == a+3)
            start = a;
      myMail = t.substring(start,end);
    return myMail;
public void mailsRemark(String file){
    String mail = "", t = "";
    Vector mailVector = myReader.read(file);
    for (int i=0; i<mailVector.size(); i++)
      t += (String)mailVector.elementAt(i) + "\n";
    from = fromFilter(t);
    subject = subjectFilter(t);
    mailBody = mailFilter(t);
    mail += "Subject: " + subject + "\n";
    mail += "Date: " + dateFilter(t) + "\n";
    mail += "From: " + from + "\n";
    mail += "To: " + toFilter(t) + "\n";
    mail += "\n" + mailBody;
    if(viewSource == true)
      ta.setText(t);
    else
      ta.setText(mail);
public synchronized void mails(String t){
    Status myStatus = new Status(this,t);
    myStatus.start();
public void delete(){
    if(tree.getLastSelectedPathComponent() != null){
      DefaultMutableTreeNode node =
          (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
      if(node.isLeaf()){
        Object nodeInfo = node.getUserObject();
        if(nodeInfo instanceof MailIndex){
          MailIndex index = (MailIndex)nodeInfo;
          mailIndexVector.removeElement(index);
          int count = 0;
          for(int j=0; j<mailIndexVector.size(); j++){
            MailIndex index1 = (MailIndex)mailIndexVector.elementAt(j);
            String id = index1.mailId;
            if(id.equals(index.mailId))
              count++;
          if(count == 0){
            File home = new File(".");
            String mailsRemark = "." + home.separator + "data";
            File datei = new File(mailsRemark, index.mailId);
            datei.delete();
          treeNewSign();
          menuNewSign();
        else{
          String t = (String)nodeInfo;
          boolean toDelete = false;
          for (int i=0; i<folderVector.size(); i++){
            if(folderVector.elementAt(i).equals(t)){
              folderVector.removeElement(t);
              konnteLoeschen = true;
          if(toDelete == false){
            message("This folder can not be deleted!");
          treeNewSign();
      else
        message("Folder is not Empty! Please delete Your mails.");
    else
      message("No Mails where selected to be deleted!");
public void forward(){
    if(from != null){
      creatorOeffnen();
      myCreator.tfSb.setText("Fwd to: " + subject);
      myCreator.ta.setText("<" + from + ">" + " wrote:\n\n" + mailBody +
                           "\n\n>\n>\n\n");
public void reply(){
    if(from != null){
      creatorOeffnen();
      myCreator.tfTo.setText(from);
      myCreator.tfSb.setText("Reply to: " + subject);
      myCreator.ta.setText("<" + from + ">" + " wrote:\n\n" + mailBody +
                           "\n\n>\n>\n\n");
public void end(){
    String h = "";
    for (int i=0; i<mailIndexVector.size(); i++){
      MailIndex index = (MailIndex)mailIndexVector.elementAt(i);
      h += index.mailId + "\n";
      h += index.folder + "\n";
      h += index.subject + "\n";
      h += index.from + "\n";
      h += index.to + "\n";
      h += index.date + "\n";
      h += index.read + "\n";
    myWriter.writer(h,"Summary.4on");
    String w = "";
    for (int l=0; l<filterIndexVector.size(); l++){
      FilterIndex index = (FilterIndex)filterIndexVector.elementAt(l);
      w += index.folder + "\n";
      w += index.from + "\n";
      w += index.text + "\n";
    myWriter.write(w,"Filter.4on");
    String k = "";
    for(int j=0; j<folderVector.size(); j++)
      k += folderVector.elementAt(j).toString() + "\n";
    myWriter.writer(k,"Folder.4on");
    String t = "";
    for (int l=0; l<myAddressBook.addressIndexVector.size(); l++){
      AddressIndex aindex =
               (AddressIndex)myAdressBook.adressIndexVector.elementAt(l);
      t += aindex.alias + "\n";
      t += aindex.email + "\n";
    myWriter.write(t,"Address.4on");
    setVisible(false);
    dispose();
    System.exit(0);
public void filterOpen(){
    boolean test = false;
    if(tree.getLastSelectedPathComponent() != null){
      DefaultMutableTreeNode node =
          (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
      Object nodeInfo = node.getUserObject();
      if(nodeInfo instanceof String){
        myFilter.folder = (String)nodeInfo;
        for(int i=0; i<filterIndexVector.size(); i++){
          FilterIndex h = (FilterIndex)filterIndexVector.elementAt(i);
          if(h.folder.equals(nodeInfo)){
            myFilter.index = h;
            test = true;
            if(h.from.equals("")){
              myFilter.box1 = false;
              myFilter.fTf.setText("");
              myFilter.fBox.setSelected(false);
              myFilter.fTf.setEditable(false);
            else{
              myFilter.box1 = true;
              myFilter.fTf.setText(h.from);
              myFilter.fBox.setSelected(true);
              myFilter.fTf.setEditable(true);
            if(h.text.equals("")){
              myFilter.box2 = false;
              myFilter.tTf.setText("");
              myFilter.tBox.setSelected(false);
              myFilter.tTf.setEditable(false);
            else{
              myFilter.box2 = true;
              myFilter.tTf.setText(h.text);
              myFilter.tBox.setSelected(true);
              myFilter.tTf.setEditable(true);
            break;
      myFilter.setVisible(true);
      myFilter.fBox.requestFocus();
    else
      meldung("No selection");
public void sendOutbox(){
    fromOutbox = true;
    int i;
    Block1:
    for(i=0; i<mailIndexVector.size(); i++){
      MailIndex index = (MailIndex)mailIndexVector.elementAt(i);
      if(index.folder.equals("Outbox")){
        Vector mailVector = myReader.read(index.mailId);
        Block2:
        for(int j=0; j<mailVector.size(); j++){
          String m = (String)mailVector.elementAt(j);
          if(m.indexOf("Subject:") != -1){
            for(int k=0; k<=j+1; k++){
              mailVector.removeElementAt(0);
            break Block2;
        Vector toVector = new Vector();
        int tEnd = 1;
        String line = "";
        String t = index.to;
        while (tEnd != -1){
          tEnd = t.indexOf(", ");
          if (tEnd == -1)
            line = t;
          else
            line = t.substring(0,tEnd);
          t = t.substring(tEnd + 1);
          toVector.addElement(line);
        File home = new File(".");
        String mailsVerzeichnis = "." + home.separator + "data";
        File datei = new File(mailsRemark, index.mailId);
        datei.delete();
        mySendman = new Sendman(mailVector, toVector, index.subject,ailsAnzeig, mySetup, this);
        mySendman.start();
        mailIndexVector.removeElement(index);
        break Block1;
    if(i == mailIndexVector.size())
      fromOutbox = false;
    treeNewSign();
public void partion(String cmd){
    if(tree.getLastSelectedPathComponent() != null){
      DefaultMutableTreeNode node =
          (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
      Object nodeInfo = node.getUserObject();
      if(nodeInfo instanceof MailIndex){
        MailIndex index = (MailIndex)nodeInfo;
        index.folder = cmd.substring(13).toString();
        treeNewSign();
    else
      meldung("No mails to partion!");
public void SetupOpen(){
    if (mySetup.savePassword == false)
      mySetup.pTf.setText("");
    mySetup.setVisible(true);
    mySetup.aTf.requestFocus();
public void addressbookOpen(){
    myAddressBook.setVisible(true);
    myAdressBook.tree.requestFocus();
public void creatorOpen(){
    myCreator.setVisible(true);
    myCreator.tfTo.requestFocus();
public void actionPerformed(ActionEvent event){
    Object obj = event.getSource();
    if (obj instanceof JMenuItem){
      String cmd = event.getActionCommand();
      if (cmd.equals("New fetched")){
        mailsfetch();
      else if (cmd.equals("Written new mails")) {
        creatorOpen();
      else if (cmd.equals("Reply")) {
        reply();
      else if (cmd.equals("Forward")) {
        forward();
      else if (cmd.equals("Outbox")) {
        sendOutbox();
      else if (cmd.equals("Delete")) {
        delete();
      else if ((cmd.length() >13) &&
               (cmd.substring(0,13).equals("Sorting-"))){
        sorting(cmd);
      else if (cmd.equals("Using Addressbook")){
        addressbookOpen();
      else if (cmd.equals("Filter working")){
        filterOpen();
      else if (cmd.equals("New Order")){
        myFixTask.tf.setText("");
        myFixTask.setVisible(true);
        myFixTask.tf.requestFocus();
      else if (cmd.equals("delete")){
        delete();
      else if ((cmd.length() >7) &&
               (cmd.substring(0,7).equals("nobody"))){
        if(viewSource == false){
          viewSource = true;
          menuNewSign();
          if(tree.getLastSelectedPathComponent() != null){
            DefaultMutableTreeNode node =
                (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
            Object nodeInfo = node.getUserObject();
            if(nodeInfo instanceof MailIndex){
              MailIndex index = (MailIndex)nodeInfo;
              mailsRemark(index.mailId);
        else{
          viewSource = false;
          menuNeuZeichnen();
          if(tree.getLastSelectedPathComponent() != null){
            DefaultMutableTreeNode node =
                (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
            Object nodeInfo = node.getUserObject();
            if(nodeInfo instanceof MailIndex){
              MailIndex index = (MailIndex)nodeInfo;
              mailsRemark(index.mailId);
      else if (cmd.equals("Setup")){
        SetupOpen();
    else if (obj instanceof JButton){
      String cmd = event.getActionCommand();
      if (cmd.equals("aga")){
        mailsHolen();
      else if (cmd.equals("Creator Open")){
        creatorOpem();
      else if(cmd.equals("rep")){
        reply();
      else if(cmd.equals("fwd")){
        forward();
      else if(cmd.equals("Setup Open")){
        SetupOpen();
      else if(cmd.equals("adr")){
        addressbookOpen();
      else if(cmd.equals("delete")){
        delete();
      else if(cmd.equals("Information")){
        myInfo.setVisible(true);
        myInfo.b.requestFocus();
private class myWindowListener extends WindowAdapter{
    public void windowClosing(WindowEvent event){
      end();
private class myTreeSelectionListener implements TreeSelectionListener{
    public void valueChanged(TreeSelectionEvent e) {
      DefaultMutableTreeNode node =
          (DefaultMutableTreeNode)(e.getPath().getLastPathComponent());
      Object nodeInfo = node.getUserObject();
      if(nodeInfo instanceof MailIndex){
        MailIndex index = (MailIndex)nodeInfo;
        mailsAnzeigen(index.mailId);
        index.read = "Yes";
}

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