Package java.math does not exist!!!

hi java experts, i really desperately need some help. ihave been trying to compile a java program i have written that imports the java.math package as i am using the BigInteger class. I am using SUN ONE STUDIO ME 4 and have j2se SDk installed. when i try to build the program in the IDE, it gives me an error message saying the java.math package does not exist. i can't understand why. i think it's an IDE problem. i tried mounting the filesystem and i mounted almost a million times in diff ways but it still can't compile. i can't find the directory of the java.math to mount into. anyway i tried to compile it at the command prompt and it can compile but with errors... so i figure that i do have the java.math class on my system just that the IDE jsut can't recognise it. i am at my wits end and gonna go mad if someone doesn't please help me.
adeline from singapore

java.math package will be there in jdk_dir\jre\lib\rt.jar. You need to set the classpath variable in your IDE for this jar file. There must be some means to edit the IDE's classpath variable.
i mounted almost a million times in diff ways but it still can't compileIf it takes one minute for each mount then total time you have taken = 10000000 minutes = 166666 hours = 6944 days = 19 years (roughly). Java was not there 19 years ago.
Sudha

Similar Messages

Package java.servlet does not exists

I am getting this error:
c:Program Files\Java\jdk1.6.0_10\bin>javac -Xlint HelloServlet.java
HelloServlet.java:2:package java.servlet does not exists
import java.servlet.;
^
HelloServlet.java:4; cannot find symbol
symbol: class GenericServlet
public class HelloServlet extends GenericServlet
^
5 errors
i am using jdk1.6.0_10. i tried to locate the servlet.jar file in the \lib directory, but the jar file was not there. how can i download one and include it in \lib?
import java.io.*;
import java.servlet.*;
public class HelloServlet extends GenericServlet {
public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter pw=response.getWriter();
pw.println("Hello!");
pw.close();
}

jatilau wrote:
forgive my ignorance.That's ok, we're all here to learn; but while (most) people on the forums are smart, they're (unfortunately) not all-knowing. They can't possibly know something about you or your environment unless you tell them.
it is because i have no one to look up at for help with java, except for the book (The Complete Reference, Java 2, 3rd Edition, Naughton & Schildt) and, of course, some times this forum.There's the whole Internet available to you. Remember, Google is your friend.
please, will anyone tell me how to find out what server type and version does JDK 1.6.0_10 provide? It doesn't. Java comes in three 'editions':
Micro (JME, earlier J2ME which is meant for mobiles and other similar platforms)
Standard (JSE, earlier J2SE which is what you're using, it's meant for core Java applications, like the sort you might use on your desktop.)
Enterprise (JEE, earlier J2EE which is for server side code. This includes JSPs, Servlets, EJBs etc)
i did not find any information about this in the book.Probably because it's a Java 'Standard' Edition (JSE or J2SE) book
What you need, to learn about servlets, is a JEE book. I'd suggest Head First Servlets and JSP from O'Reilly. Otherwise, follow the link I gave earlier to find tutorials.
To get started, you'll need a JDK, which you say you already have and a server. I'd suggest you get Tomcat. You will also find the servlet-api.jar after you setup Tomcat. This is an implementation of the JEE specification for servlets. This contains the javax.servlet.* packages you'll need to compile. Beyond this, the scope of what servlets are and how to deploy etc is rather large and best left to one of the afore-mentioned tutorials.

ATMTag.java:5: package javax.servlet does not exist

My j2ee jdk1.4.2 is not supporting javx package.
i already set all pathh and class path.
anybody can help me.
details are given below ::
C:\AVA\J2EE Programs\JSP\JSPCustomTag>javac ATMTag.java
ATMTag.java:5: package javax.servlet does not exist
import javax.servlet.*;
^ 
ATMTag.java:6: package javax.servlet.http does not exist
 
import javax.servlet.http.*;
 
ATMTag.java:18: cannot resolve symbol
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location: class ATMTag
public class ATMTag extends TagSupport{
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ATMTag.java:29: cannot resolve symbol
symbol : class JspTagException
location: class ATMTag
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ATMTag.java:31: cannot resolve symbol
symbol : class JspWriter
location: class ATMTag
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^
ATMTag.java:31: cannot resolve symbol
symbol : variable pageContext
location: class ATMTag
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^
ATMTag.java:56: cannot resolve symbol
symbol : variable pageContext
location: class ATMTag
pageContext.getOut().write(str);
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ATMTag.java:60: cannot resolve symbol
symbol : variable EVAL_PAGE
location: class ATMTag
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8 errors

When compiling servlets etc, you need to include in your classpath a jar file with all the javax.* classes defined in it.
For Tomcat this is called servlet.jar and is in (I think) [TOMCAT_HOME]/shared/lib or /common/lib
For J2EE 1.4 Server, the jar is [J2EE_HOME]/lib/j2ee.jar
Where the _HOME directory is the directory where you installed J2EE.
Include this jar file in your classpath when compiling.
Good luck,
evnafets

Package javax.mail does not exist (Still having trouble)

Good Morning
I know that there are several posts regarding issues with javamail. I have viewed them for the past hour. While several of them address my issue I have been unable to locate a solution.
Bare with me please, I am making this post very thorough. The other threads I have read are frusterating because the problems people tend to post are not clear.
I am trying to run "msgsend" which is a provided demo of javamail-1.4 using command prompt (start - run - cmd) with the javac command.
The output below is directly pasted from command prompt and written in bold.
C:\download\javamail-1.4\demo>javac msgsend.java
C:\download\javamail-1.4\demo>javac msgsend.java
msgsend.java:44: package javax.mail does not exist
import javax.mail.*;
^
msgsend.java:45: package javax.mail.internet does not exist
import javax.mail.internet.*;
^
msgsend.java:140: cannot find symbol
symbol : class Session
location: class msgsend
Session session = Session.getInstance(props, null);
^
msgsend.java:140: cannot find symbol
symbol : variable Session
location: class msgsend
Session session = Session.getInstance(props, null);
^
msgsend.java:145: cannot find symbol
symbol : class Message
location: class msgsend
Message msg = new MimeMessage(session);
^
msgsend.java:145: cannot find symbol
symbol : class MimeMessage
location: class msgsend
Message msg = new MimeMessage(session);
^
msgsend.java:147: cannot find symbol
symbol : class InternetAddress
location: class msgsend
msg.setFrom(new InternetAddress(from));
^
msgsend.java:151: package Message does not exist
msg.setRecipients(Message.RecipientType.TO,
^
msgsend.java:152: cannot find symbol
symbol : variable InternetAddress
location: class msgsend
InternetAddress.parse(to,
^
msgsend.java:154: package Message does not exist
msg.setRecipients(Message.RecipientType.CC,
^
msgsend.java:155: cannot find symbol
symbol : variable InternetAddress
location: class msgsend
InternetAddress.parse(cc,
^
msgsend.java:157: package Message does not exist
msg.setRecipients(Message.RecipientType.BCC,
^
msgsend.java:158: cannot find symbol
symbol : variable InternetAddress
location: class msgsend
InternetAddress.parse(bcc,
^
msgsend.java:167: cannot find symbol
symbol : class MimeBodyPart
location: class msgsend
MimeBodyPart mbp1 = new MimeBodyPart();
^
msgsend.java:167: cannot find symbol
symbol : class MimeBodyPart
location: class msgsend
MimeBodyPart mbp1 = new MimeBodyPart();
^
msgsend.java:169: cannot find symbol
symbol : class MimeBodyPart
location: class msgsend
MimeBodyPart mbp2 = new MimeBodyPart();
^
msgsend.java:169: cannot find symbol
symbol : class MimeBodyPart
location: class msgsend
MimeBodyPart mbp2 = new MimeBodyPart();
^
msgsend.java:171: cannot find symbol
symbol : class MimeMultipart
location: class msgsend
MimeMultipart mp = new MimeMultipart();
^
msgsend.java:171: cannot find symbol
symbol : class MimeMultipart
location: class msgsend
MimeMultipart mp = new MimeMultipart();
^
msgsend.java:185: cannot find symbol
symbol : variable Transport
location: class msgsend
Transport.send(msg);
^
msgsend.java:193: cannot find symbol
symbol : class Store
location: class msgsend
Store store = null;
^
msgsend.java:195: cannot find symbol
symbol : class URLName
location: class msgsend
URLName urln = new URLName(url);
^
msgsend.java:195: cannot find symbol
symbol : class URLName
location: class msgsend
URLName urln = new URLName(url);
^
msgsend.java:212: cannot find symbol
symbol : class Folder
location: class msgsend
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msgsend.java:218: cannot find symbol
symbol : variable Folder
location: class msgsend
folder.create(Folder.HOLDS_MESSAGES);
^
msgsend.java:220: cannot find symbol
symbol : class Message
location: class msgsend
Message[] msgs = new Message[1];
^
msgsend.java:220: cannot find symbol
symbol : class Message
location: class msgsend
Message[] msgs = new Message[1];
27 errors
Here are the methods I have tried...
1. Make sure you have most current version of Java
2. Reinstall Java
3. Attempt to compile in an IDE (Attempted in Eclipse 3.2)
4. Set class path
Some sources suggest "CLASSPATH" some suggest "CLASS PATH" as the variable name. I have tried both.
Below is what the classpath looks like in bold.
Variable Name: CLASS PATH
Variable value: c:\download\javamail-1.4\mail.jar;C:\download\jaf-1.1\activation.jar;.
I have double checked all folder names and copy pasted all entries to eliminate typos. Javamail-1.4 and jaf-1.1 are both located in c:\download which is the same location Class Path points to.
Thank you very much for your input and effort. I can imagine how frusterating it is responding to 20million javamail posts :) (that may be a bit of an overstatement!)
Thank you again!
Irbi
Message was edited by:
irbi
Message was edited by:
irbi

Yes - I have read that part of the README and did exactly as it has said in a previous attempt. I should have mentioned that here I'm sorry :)
I moved the .jar files into the download folder and set the classpath exactly as the readme shows.
When I do that the msgsend.java compiles correctly but it still does not run.
Below is what happens.
C:\download\javamail-1.4\demo>set CLASSPATH=%CLASSPATH%;c:\download\javamail-1.4
\mail.jar;%CLASSPATH%;c:\download\jaf-1.1\activation.jar.
C:\download\javamail-1.4\demo>javac msgsend.java
C:\download\javamail-1.4\demo>java msgsend.java
Exception in thread "main" java.lang.NoClassDefFoundError: msgsend/java
C:\download\javamail-1.4\demo>
I have tried fixing this error as well via forums and FAQs but it seems to be the most generic error.
One suggestion was to clear your classpath. I tried this with a test hello world program which was giving the same error - "NoClassDefFoundError". By clearing the classpath I was able to get the hello world program to run without this error. But I can't just clear the classpath in this instance because it needs to point to mail.jar and activation.jar for the program to compile.
Thanks again for all of your efforts. You are more appreciated than you know.

Package javax.servlet does not exist - settings appear to be correct

laugh as I write this post...it's hardly a "new topic."...but everything seems set just as it should be...
Okay...I'm a seasoned programmer in every language but JAVA. Here's the issue...every time I try to use the Core Servlets book/website by Marty Hall and Larry Brown I get hung up on the packages. This time, I downloaded and followed step by step what the website said to do...it was even preconfigured for me! Alas...I am getting the following compliation errors on a "simple packagless" program with NetBeans:
Compiling 1 source file to C:\Servlets+JSP\HelloServlet\build\classes
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:2: package javax.servlet does not exist
import javax.servlet.*;
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:3: package javax.servlet.http does not exist
import javax.servlet.http.*;
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:13: cannot find symbol
symbol: class HttpServlet
public class HelloServlet extends HttpServlet {
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:14: cannot find symbol
symbol : class HttpServletRequest
location: class HelloServlet
public void doGet(HttpServletRequest request,
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:15: cannot find symbol
symbol : class HttpServletResponse
location: class HelloServlet
HttpServletResponse response)
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:16: cannot find symbol
symbol : class ServletException
location: class HelloServlet
throws ServletException, IOException {
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BUILD FAILED (total time: 0 seconds)
These are my environment settings (note that the JAVAX package is located under the src folder in Java)
Catalina Home:
C:\apache-tomcat-6.0.10
CLASSPATH:
C:\apache-tomcat-6.0.10\lib\servlet-api.jar;
C:\apache-tomcat-6.0.10\lib\jsp-api.jar;
C:\apache-tomcat-6.0.10\lib\el-api.jar;
C:\Servlets+JSP;..;..\..;
C:\Program Files\Java\jdk1.6.0_03\src
JAVA_HOME
C:\Program Files\Java\jdk1.6.0_03
Path:
C:\Program Files\Java\jdk1.6.0_03\bin;%PATH%
Any ideas (excluding the one that maybe I should let my hair grow out, put on some tackey shorts and sandles and start palying an instrument in the streets of Austin for living?)

cabkats wrote:
You are then suggesting that I make the corrections directly to the files in apache using notepad instead of using the envir. variables?No I am not suggesting that. I am suggesting that you need to read the documentation about the product(s) and set them up the way they require, rather than blindly think that the CLASSPATH environment variable is some magical entity.
I will try this, but I was hoping that since my IDE auto configured (with exception to java_home) that I would not have to do this. I wil give it try....thanks for the suggestion.See, you're using an IDE. Like I mentioned, IDEs do not use the CLASSPATH environment variable. You need to set up your project in your IDE in such a way that it knows what the dependent jars are. I'm sure there's a way to add jars to your project's dependencies.

Package javax.persistence does not exist

Hi, I'm a beginner on Weblogic, sorry my so simple and basic question (and my bad english). But I'm trying to build the weblogic examples ("ant build", as the documentation says) and got error messages like this:
Buildfile: build.xml
clean:
init:
[mkdir] Created dir: /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30/build/META-INF
[copy] Copying 1 file to /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30/build/META-INF
[copy] Copying 1 file to /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30/build/META-INF
[echo] ======================================================
[echo] Building EJB 3.0 Samples
[echo] ======================================================
[echo] Base directory : /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30
[echo] Samples Home : /opt/bea/wlserver_10.3/samples
[echo] Deployed Target : /opt/bea/wlserver_10.3/samples/server/examples/build/ejb30/reviewService.ear
compile:
[javac] Compiling 38 source files to /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30/build
[javac] /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30/src/java/examples/ejb/ejb30/domain/Artist.java:6: package javax.persistence does not exist
[javac] import javax.persistence.*;
[javac] ^
[javac] /opt/bea/wlserver_10.3/samples/server/examples/src/examples/ejb/ejb30/src/java/examples/ejb/ejb30/domain/Person.java:7: package javax.persistence does not exist
I suppose that there is some "jar" containing "javax.persistence" that should be included in some classpath
on build.xml file, but I didn't find such "jar". I found in documentation that persistence is also implemented using
the Kodo software, an may be I should configure it, but I don't know how. Can someone help me building the
Weblogic examples?
Thanks.

Hi,
Here the result of :
echo "CLASSPATH" in windows after running setWLS.Env.cmd
C:\bea\patch_wlw1030\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\patch_wls1030\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\patch_jdev1111\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\patch_cie660\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\JROCKI~1\lib\tools.jar;C:\bea\WLSERV~1.3\server\lib\weblogic_sp.jar;
C:\bea\WLSERV~1.3\server\lib\weblogic.jar;
C:\bea\modules\features\weblogic.server.modules_10.3.0.0.jar;
C:\bea\WLSERV~1.3\server\lib\webservices.jar;
C:\bea\modules\ORGAPA~1.5/lib/ant-all.jar;
C:\bea\modules\NETSFA~1.0_1/lib/ant-contrib.jar;
C:\bea\patch_wlw1030\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\patch_wls1030\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\patch_jdev1111\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\patch_cie660\profiles\default\sys_manifest_classpath\weblogic_patch.jar;
C:\bea\JROCKI~1\lib\tools.jar;
C:\bea\WLSERV~1.3\server\lib\weblogic_sp.jar;
C:\bea\WLSERV~1.3\server\lib\weblogic.jar;
C:\bea\modules\features\weblogic.server.modules_10.3.0.0.jar;
C:\bea\WLSERV~1.3\server\lib\webservices.jar;
C:\bea\modules\ORGAPA~1.5/lib/ant-all.jar;
C:\bea\modules\NETSFA~1.0_1/lib/ant-contrib.jar;
C:\Program Files\Java\jre1.6.0_07\lib\ext\QTJava.zip
Hope it will help
can you past the content of you script setWLSEnv.sh?
Also try with the script setExamplesEnv.sh under C:\bea\wlserver_10.3\samples\domains\wl_server (for windows) the equivalent of Unix
Thanks

ANT script genrated error: package javax.servlet does not exist

Hi there,
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I set it with the environment variable (windows xp)
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Hi..seems u r new to J2ee.. dont worry its a very small problem:
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I am using J2EE sdk 1.4 and running on xp
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Package javax.servlet does not exist, package javax.servlet.http does not

Dear All,
I am a newbie to JAVA.
I installed JDK1.6.0_04, then NetBeans IDE 6.0
I tried compiling an example servlet, but got this error message:
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davidgoodman wrote:
Dear All,
I am a newbie to JAVA.
I installed JDK1.6.0_04, then NetBeans IDE 6.0
I tried compiling an example servlet, but got this error message:
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>
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I tried locating these packages, but in vain.
You won't find them until you realize that you have to deploy that servlet someplace.How to deploy?
I also tried setting the CLASSPATH to many values, still it did not work.
See above. What were you planning to set CLASSPATH to?First I set to:
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Later I added this:
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error generation code:
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Mahmood

Hi Mahmood,
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javax.jnlp is in jnlp.jar (see the developers bundle at :
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Package jawa.awt does not exist

I have searched this problem in the forum but could not find anything about it.
I have NetBeans IDE + JDK 5.0 Update 3 installed in my computer (http://java.sun.com/j2se/1.5.0/download.jsp). But when I try to compile a very simple Java using any package I receive same error that package does not exist.
I will be glad if someone can explain how to solve this problem.
Regards.

Thank you for your reply.
The code is :
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import jawa.awt.Font;
import jawa.awt.Color;
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g.setFont(f);
g.setColor(COlor.red);
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Package javax.servlet does not exists - Cannot resolve symbol

Hello,
I am using JDK 1.3.1.06 version. I wanted to compile a simple servlet using this. But I am getting plenty of errors for all javax package. Why it is not able to find javax package classes?
The following is the program I have tried to compile.
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class TestServlet extends HttpServlet
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
process(request, response);
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
process(request, response);
private void process(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
PrintWriter out = response.getWriter();
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I am getting errors like this :
Package javax.servlet does not exists.
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ForumAns.

javax.servlet doesn't come with the standard jdk. It's part of J2EE.
If you have tomcat, you can use the server.jar that comes with tomcat.
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I am getting errors like this :
Package javax.servlet does not exists.
cannot resolve symbol
symbol : class HttpServlet

Package javax.servlet does not exists ?

Hello,
I am using JDK 1.3.1.06 and trying to compile a simple Servlet. But getting errors as javax package classes does not exits and cannot resolve symobol.
The following is the program I am trying to compile:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class TestServlet extends HttpServlet
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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          process(request, response);
     private void process(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
          PrintWriter out = response.getWriter();
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I am getting errors such as :
Package javax.servlet does not exists.
cannot resolve symbol
symbol : class HttpServlet
Please advice me of any solution asap. Deep trouble.
Thanking you,
Forumans.

Just a guess...
JDK 1.3.1.06 This represents the Java language in the form of a JVM and the Java API (like java.lang.String.)
ServletThis is in J2EE, which if you look above was not mentioned.
If you look in the java docs for the JDK you will also find that javax.servlet does not exist.
I would guess however that you could start here - http://java.sun.com/j2ee/
However, keep in mind that your servlet still needs to run in something, so you better make sure that you are compiling against the correct J2EE server for what you are doing.

Missing-- package javax.applet does not exist

While compiling a short program to work with an image in jcreator I get a javax.applet does not exist error. I've checked the boards for this error as well as the bin dir and didn't see this package in there. Am I looking in the right place?
C:\j2sdk1.4.1_02\bin...Also looked in the jre folder as there were some others with similar problems.
Thanks in advance
Baccoitalia

Chuck,
Here's the error I get:
F:\JCreator Pro\MyProjects\pos407\smileyspot\smiley\Smiley.java:7: package javax.applet does not exist
import javax.applet.*;
I am importing following with the program:
import javax.applet.*;
import java.awt.*;
import javax.swing.*;
Tks,
Baccoitalia

Package javax.mail does not exist. Please Help !

Hi all,
I am new to Java and I downloaded some sample application and when I try to compile it, I get an error:
"package javax.mail does not exist".
I've looked through forums and I know something is wrong with CLASSPATHS and that I also have to download the java mail package, but I dont know how to exactly fix this problem. I would appreciate very much if someone could help me, maybe by telling me the steps I need to take.
Thanks.

Hey Rom,
Thanks for reply.
The sample application is an authentication module:
http://java.sun.com/j2se/1.4.2/docs/guide/security/jaas/tutorials/GeneralAcnOnly.html
But I think this doesnt really matter, as the error I get is because I have manually added the : import java.mail.*; statement. (Maybe I had to mention it in the previous post). Because I want to add some mail client inside.
I am compiling it using the command: javac, from the commandline menu.

Package java.math does not exist!!!

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