Java SE classes in a JAR fail preverification... and so they should?
Hi Folks,
I'm trying to add a util JAR to my MIDlet suite, so chucked the JAR file in with it but during preverification, the following comes up...
Error preverifying class com.foo.Bar
java/lang/NoClassDefFoundError: java/lang/Comparable
Build failedI'm assuming this is becuase the Java ME won't have the Java SE class java.lang.Comparable available to it and so fails. Is this the case?
Prob a silly question, but does this mean I can't use ANY J2SE classes (that arn't in the ME API) on the device? For example, java.util.Map? It might not be so bad as I can possibly re-work the JAR project in question to lightwieght version but I guess I just want to know.
Anyway, thanks for any help,
Toby
... does this mean I can't use
ANY J2SE classes (that arn't in the ME API) on the
device?That is very true. The html-documentation is pretty useful - it can give you a full list of all the APIs available under J2ME. Look under the docs/api subdirectory of your ToolKit installation directory for index.html.
In particular, you'll have to work around file access and networking in J2ME if you have said functionality in your J2SE app. Look at the Connector class under javax.microedition.io for networking and RecordStore class under javax.microedition.rms for 'file' io.
BTW - one way to get around missing classes (although it is not sanctioned by Sun license agreement) is to simply pull the class out of the J2SE API and include it in your jar.
Ricardo
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Using java math class for power's SQ rt and rounding.
Hey all
ive attempted to use maths class to create a program a user can enter a number and then the output shows
The number rounded to the nearest integer
The Square root of the number
and finaly the number to the power of 6
So far i have the following code but im a bit thick to what im missing ....
import java.util.*;
public class Mathclass
public static void main(String[] args)
Scanner kybd = new Scanner(System.in);
double num = kybd.nextInt(); // kybd is an instance of Scanner
public static double ceil (double num);
public static double sqrt (double num);
public static double exp (double num);
}}Please be kind i know the outputs arnt there yet but im getting 15 errors in javac
ThankyouJavaman01 wrote:
i can understand that you feel this way , i just have a lot of programs i need to complete for a portfolio tommorow , so i need all the help i can get.Well, then I guess you started too late. Talk to your teacher that you won't be able to get it done on your own. Start learning your course book or the basic tutorials I posted and try to do the assignments again. I really think you know too little to get this done.
Javaman01 wrote:
if you wish not to help the please dont comment as i fear this will put others of helping me when i need it most.I did help you! And you have nothing to say about me posting here or not. Just as I can't stop you from trying to get others to do your homework.
Javaman01 wrote:
thankyouYou're welcome. -
Transaction propogation to java helper class
Hi
EJB A calls EJB B and EJB B does certain numbr of updates/insert. If one them
fails everything rollsback in second EJB. This works fine.
But instead of EJB B being an EJB the initial design was a regular java helper
class. EJB A creates a new instance of this java class and calls a method on this
class. The EJB A is set to be transactional (Required). The java class get a DB
connection from TX datasource and does the same operation as EJB B that I described
above. I tried to throw an exception to the EJB A and catching the Exception did
a setRollbackOnly() in EJB A and the transaction does not rollback. I was under
the impression that even if DB operations are done in a java class they are still
under the same transaction and thus container is still under control of it if
it is a container managed transaction. it does not look like it is teh case.
Is there any requirement that DB connection obtained /operation made need to be
inside the EJB method itself and not in the java helper class. Does this means
that the transaction gets suspended on the duration of execution of the java helper
class. I was under the impression that they are all under the same transaction
context and it applies to that as well. Any help on this is greatly appreciated.
Well, that's the only way. The container has to start the transaction in its
invocation wrapper for CMT EJBs and then terminate the transaction (commit or
rollback) after the method has exited (either normally or by throwing an
exception). Anything that happens inside the call to the business method is in
the transaction...
--dejan
Toad wrote:
> That's good to know but somewhat surprising.
>
> "Deyan D. Bektchiev" <[email protected]> wrote in message
> news:[email protected]...
> > The transaction is associate with the thread that the EJB method executes
> in so
> > any calls in the same threads are part of the transaction.
> > So even if you have a separate class that functions as a connection
> factory (in
> > the end getting the connections from a TX datasource) those connections
> still
> > would be part of the transaction.
> >
> > You can test that if you do
> > System.out.println(weblogic.transaction.TxHelper.getTransaction()) and you
> > should see the current transaction.
> >
> >
> > --dejan
> >
> > Toad wrote:
> >
> > > I'm thinking the key to the failure to rollback is that the helper bean
> > > "gets a connection" which is effectively stepping outside the confines
> of
> > > your CMP model. How would the container know that you hand-carved a
> > > connection or even a set of connections and executed several
> transactions
> > > independently? That would be no mean feat if it wasn't specifically
> designed
> > > in.
> > >
> > > "Priya Vasudevan" <[email protected]> wrote in message
> > > news:[email protected]...
> > > >
> > > > Hi
> > > >
> > > > EJB A calls EJB B and EJB B does certain numbr of updates/insert. If
> one
> > > them
> > > > fails everything rollsback in second EJB. This works fine.
> > > >
> > > > But instead of EJB B being an EJB the initial design was a regular
> java
> > > helper
> > > > class. EJB A creates a new instance of this java class and calls a
> method
> > > on this
> > > > class. The EJB A is set to be transactional (Required). The java class
> get
> > > a DB
> > > > connection from TX datasource and does the same operation as EJB B
> that I
> > > described
> > > > above. I tried to throw an exception to the EJB A and catching the
> > > Exception did
> > > > a setRollbackOnly() in EJB A and the transaction does not rollback. I
> was
> > > under
> > > > the impression that even if DB operations are done in a java class
> they
> > > are still
> > > > under the same transaction and thus container is still under control
> of it
> > > if
> > > > it is a container managed transaction. it does not look like it is teh
> > > case.
> > > >
> > > > Is there any requirement that DB connection obtained /operation made
> need
> > > to be
> > > > inside the EJB method itself and not in the java helper class. Does
> this
> > > means
> > > > that the transaction gets suspended on the duration of execution of
> the
> > > java helper
> > > > class. I was under the impression that they are all under the same
> > > transaction
> > > > context and it applies to that as well. Any help on this is greatly
> > > appreciated.
> > > >
> >
-
Java class uses another class in a Jar file (How do I make Java see it)?
I am trying to figure out how do I make Javac see the thinlet.class in the thinlet.jar.
I have developed an XUL xml interface and a java program that calls the interface shown below:
//package thinlet.demo;
import thinlet.*;
public class UI extends Thinlet
{ public UI () throws Exception {add(parse("UI.xml"));}
public static void main(String[] args) throws Exception
{ new FrameLauncher("UI", new UI(), 600, 600); }}
when I do the normal compile, I get an error:
UI.java:4: cannot find symbol
symbol: class Thinlet
public class UI extends Thinlet {
^
UI.java:7: cannot find symbol
symbol : method parse(java.lang.String)
location: class thinlet.demo.UI
add(parse("UI.xml"));
^
UI.java:12: cannot find symbol
symbol : class FrameLauncher
location: class thinlet.demo.UI
new FrameLauncher("UI", new UI(), 600, 600);
^
3 errors
This thinlet class should be in the thinlet.jar that I have added the directory to the path, the directory and jarfile name to the System CLASSPATH and it couldn't see it. So finally I tried putting the thinlet.jar in the same directory to no avail. I've searched the web for some time an cannot find anything that specifically speaks to compiling a program that has parent classes in a Jar.
Any help is definitely appreciated.This thinlet class should be in the thinlet.jar that I have added the directory to the path, the directory and jarfile name to the System CLASSPATH and it couldn't see it. So finally I tried putting the thinlet.jar in the same directory to no avail. I've searched the web for some time an cannot find anything that specifically speaks to compiling a program that has parent classes in a Jar.
Any help is definitely appreciated.You just still haven't provided the jar in the classpath, or you're not using the right class name. Is the class really named thinlet.Thinlet? Or are you thinking "import thinlet.*" means to import all classes in a jar named thinlet.jar? Because the latter is not true. You need to import classes, not jar file names. -
Running Java program created with Eclipse plugin fails to open report
I created a CR 2008 report and using the Eclipse plug-in I created a Java program to drive data through the report and export the resulting reports as pdf files.
This process works just fine if I run the Java program in Eclipse. I copied the code to a server to run the application remote.
The program fails at the point of opening the Crystal Report. This is the error.
D:\src>java EDIInvoice
Current date : 2009928-
Report output name is : D:\src\report\Invoice2009928-45462829.pdf
com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: com/ibm/icu/util/Ca
lendar---- Error code:-2147467259 Error code name:failed
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.<init>(Unknown Source)
This is the code
public class EDIInvoice {
private static final String REPORT_NAME = "D:
src
CR8Invoice.rpt";
public static void launchApplication() {
try
FileInputStream in = new FileInputStream("D:
src
ghxInv.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine;
Calendar cal = new GregorianCalendar();
int month = cal.get(Calendar.MONTH);
int year = cal.get(Calendar.YEAR);
int day = cal.get(Calendar.DAY_OF_MONTH);
String today = (year + "" + (month + 1) + "" + day + "-");
System.out.println("Current date : " + today);
// Read the file one line at a time
while ((strLine = br.readLine()) != null)
String patternStr = ",";
String[] fields = strLine.split(patternStr);
String EXPORT_FILE = "D:
src
report
Invoice" + today + fields[1] + ".pdf";
String Company = fields[0];
String Invoice = fields[1];
String PO_number = fields[2];
System.out.println("Report output name is : " + EXPORT_FILE);
try {
//Open report.
ReportClientDocument reportClientDoc = new ReportClientDocument();
reportClientDoc.open(REPORT_NAME, 0);
System.out.println("Opened the report");
As you can see the first 2 println statements worked fine, but the 3rd one failed. The program was not able to open the report.
Is there a reason the code can not run without Eclipse?did you copy all the jar files? especially the jrcadapter.jar? please download the following sample and modify it accordingly:
[http://www.sdn.sap.com/irj/boc/index?rid=/library/uuid/f087d31f-3e11-2c10-2cba-fcb5855f79ef] -
Applet inside a JAR: Cannot access other classes within the JAR
Hello,
Description
Web app + applet (packaged in a JAR)
I have followed this tutorial
JAR contents
package mypackage
SimpleApplet.class
SimpleObj.class
_"SimpleApplet" uses "SimpleObj"_
package mypackage;
public class SimpleApplet extends JApplet {
@Override
public void init() {
SimpleObj obj = new SimpleObj();
HTML code
<applet archive="SimpleApplet.jar" codebase="." code="mypackage.SimpleApplet.class" width="800" height="600" />
SimpleObj cannot be found (Java Console)
java.lang.NoClassDefFoundError: mypackage/SimpleObj
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: mypackage.SimpleObj
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
... 8 more
Caused by: java.io.IOException: open HTTP connection failed:*http://localhost:8080/SimpleApp/mypackage/SimpleObj.class*
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 12 more
Exception: java.lang.NoClassDefFoundError: mypackage/SimpleObj
It looks like JRE does not search for the SimpleObj class inside the JAR, but tries to get it from the server...
Any ideas?
Thanks in advance,
Gerard
Edited by: gsoldevila on Dec 10, 2008 2:05 AMmisread, deleted
Edited by: atmguy on Dec 10, 2008 1:12 PM -
Loading classes from another jar file
I've set up my jnpl file so that it references a core jar file (contains main() function). The jnlp also references another jar file (app.jar) which contains class files that I load and instantiate dynamically (using ClassLoader). The core.jar file contains a manifest that includes a reference to app.jar.
The app works fine when I use "java -jar core.jar" from the command line.
However, when I wrap the jars using jnlp, I always get a null pointer exception because it cannot find any class that is in the app.jar file. I've tried different strategies, such as trying to load a class file that sits on the server (in a jar file and not in a jar file), but that also fails if I use jnlp (However, it works if I use "java -jar core.jar")
Any ideas what is going on?This is the "OckCore.jar" manifest before signing:
Manifest-Version: 1.0
Main-Class: com.Ock.OckCore.OckApp
Class-Path: . OckMaths.jar
Created-By: 1.4.0-beta3 (Sun Microsystems Inc.)
Name: com.Ock.OckCore.OckApp.class
Java-Bean: FalseThis is the manifest after signing:
Manifest-Version: 1.0
Main-Class: com.Ock.OckCore.OckApp
Created-By: 1.4.0-beta3 (Sun Microsystems Inc.)
Class-Path: http://hazel/Ock/. http://hazel/Ock/OckMaths.jar
Name: com/Ock/OckCore/OckApp.class
SHA1-Digest: KRZmOryizx9o2L61nN+DbUYCgwo=I have removed a load of irrelevant stuff from the "after" manifest to keep it readable.
note that :-
The OckApp.class loads normally from webstart and tries to load a class from OckMaths.jar.
I can prove that OckApp.class does load because it creates a log file when it does.
The OckApp.class tries to load a class from the OckMaths.jar. This fails if webstart is used but works if OckCore is launched using "java -jar OckCore.jar".
The jars do exist at the location specified by the manifest.
The application launches normally if I use "java -Jar OckCore.jar"
Here is the jnlp file
<?xml version='1.0' encoding='UTF-8'?>
<jnlp
spec="1.0"
codebase="http://hazel/Ock"
href="OckMaths.jnlp">
<information>
<title>Ock Maths Demo</title>
<vendor>Rodentware Inc</vendor>
<description>Demo of a ported app running as a Java Webstart application</description>
<description kind="short">An app running as a Java Webstart application"></description>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.3"/>
<jar href="OckCore.jar"/>
<jar href="OckMaths.jar"/>
</resources>
<application-desc main-class="com.Ock.OckCore.OckApp">
</jnlp> I have also signed the jars outside of a webdirectory. I get the following manifest file:
Manifest-Version: 1.0
Main-Class: com.Ock.OckCore.OckApp
Created-By: 1.4.0-beta3 (Sun Microsystems Inc.)
Class-Path: . OckMaths.jar
Name: com/Ock/OckCore/OckApp.class
SHA1-Digest: KRZmOryizx9o2L61nN+DbUYCgwo=
note that :-
The jars do exist at the location specified by the manifest.
The application launches normally if I use "java -Jar OckCore.jar".
The application doesn't launch from webstart.
I've found that cache, but the jar files have been renamed.
OckCore.jar is anOckCore.jar, etc... so I'm not sure if trying to write a cmdline will work anyway. -
[Forms6i - PJC/BeanArea] java.io.IOException: open HTTP connection failed.
Hi,
I'm using a pjc on my forms but on runtime i received an error: open HTTP connection failed.
The output of my java console is :
Oracle JInitiator: Version 1.3.1.22
Using JRE version 1.3.1.22-internal Java HotSpot(TM) Client VM
User home directory = D:\documents and settings\OFV7600
Proxy Configuration: Automatic Proxy Configuration
JAR cache enabled
Location: D:\documents and settings\OFV7600\Oracle Jar Cache
Maximum size: 50 MB
Compression level: 0
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
q: hide console
s: dump system properties
t: dump thread list
x: clear classloader cache
0-5: set trace level to <n>
Loading http://do040001334/forms60java/f60all.jar from JAR cache
Loading http://do040001334/hsd65-java/hst65.jar from JAR cache
Loading http://do040001334/forms60java/classes12.jar.sig from JAR cache
Loading http://do040001334/forms60java/cadtest.jar.sig from JAR cache
Loading http://do040001334/forms60java/browser_jpkg.jar.sig from JAR cache
Loading http://do040001334/forms60java/TutoFichier.jar.sig from JAR cache
Loading http://do040001334/forms60java/stip.jar.sig from JAR cache
Loading http://do040001334/forms60java/pkg_scroll.jar.sig from JAR cache
Loading http://do040001334/forms60java/client.jar.sig from JAR cache
Loading http://do040001334/forms60java/pkg_geosoft.jar.sig from JAR cache
Loading http://do040001334/forms60java/cadtest20060320.jar.sig from JAR cache
connectMode=Socket
serverHost=DO040001334
serverPort=9000
Forms Applet version is : 60824
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at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at oracle.forms.handler.UICommon.instantiate(Unknown Source)
at oracle.forms.handler.UICommon.onCreate(Unknown Source)
at oracle.forms.handler.JavaContainer.onCreate(Unknown Source)
at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
at oracle.forms.engine.Runform.processMessage(Unknown Source)
at oracle.forms.engine.Runform.processSet(Unknown Source)
at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
at oracle.forms.engine.Runform.onMessage(Unknown Source)
at oracle.forms.engine.Runform.sendInitialMessage(Unknown Source)
at oracle.forms.engine.Runform.startRunform(Unknown Source)
at oracle.forms.engine.Main.createRunform(Unknown Source)
at oracle.forms.engine.Main.start(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Where is my problem ?
How to resolve my problem ?
Thanksthanks,
I had do the classpath
Now, I have another problem
Oracle JInitiator: Version 1.3.1.22
Using JRE version 1.3.1.22-internal Java HotSpot(TM) Client VM
User home directory = D:\documents and settings\OFV7600
Proxy Configuration: Automatic Proxy Configuration
JAR cache enabled
Location: D:\documents and settings\OFV7600\Oracle Jar Cache
Maximum size: 50 MB
Compression level: 0
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
q: hide console
s: dump system properties
t: dump thread list
x: clear classloader cache
0-5: set trace level to <n>
Loading http://do040001334/forms60java/f60all.jar from JAR cache
Loading http://do040001334/hsd65-java/hst65.jar from JAR cache
Loading http://do040001334/forms60java/classes12.jar.sig from JAR cache
Loading http://do040001334/forms60java/cadtest.jar.sig from JAR cache
Loading http://do040001334/forms60java/browser_jpkg.jar.sig from JAR cache
Loading http://do040001334/forms60java/TutoFichier.jar.sig from JAR cache
Loading http://do040001334/forms60java/stip.jar.sig from JAR cache
Loading http://do040001334/forms60java/pkg_scroll.jar.sig from JAR cache
Loading http://do040001334/forms60java/client.jar.sig from JAR cache
Loading http://do040001334/forms60java/pkg_geosoft.jar.sig from JAR cache
Loading http://do040001334/forms60java/cadtest20060320.jar.sig from JAR cache
connectMode=Socket
serverHost=DO040001334
serverPort=9000
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_____START CADViewerWrapper() constructor_____
Running CADViewer 8.0.6d
Exception =java.security.AccessControlException: access denied (java.io.FilePermission viewer.cfg read)
java.security.AccessControlException: access denied (java.io.FilePermission viewer.cfg read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.File.isDirectory(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
at com.cadviewer.be.a(Unknown Source)
at com.cadviewer.be.do(Unknown Source)
at com.cadviewer.e0.m(Unknown Source)
at com.cadviewer.e0.a(Unknown Source)
at com.cadviewer.ViewerAWT.<init>(Unknown Source)
at cadtest20060320.CADViewerWrapper2.<init>(CADViewerWrapper2.java:78)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Unknown Source)
at oracle.forms.handler.UICommon.instantiate(Unknown Source)
at oracle.forms.handler.UICommon.onCreate(Unknown Source)
at oracle.forms.handler.JavaContainer.onCreate(Unknown Source)
at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
at oracle.forms.engine.Runform.processMessage(Unknown Source)
at oracle.forms.engine.Runform.processSet(Unknown Source)
at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
at oracle.forms.engine.Runform.onMessage(Unknown Source)
at oracle.forms.engine.Runform.sendInitialMessage(Unknown Source)
at oracle.forms.engine.Runform.startRunform(Unknown Source)
at oracle.forms.engine.Main.createRunform(Unknown Source)
at oracle.forms.engine.Main.start(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
url=file:/d:/acad_B/es/cat/STIP/Extract/410009.dwf
url=file:/d:/acad_B/es/cat/STIP/Extract/410009.dwf
Netscape security model is no longer supported.
Please migrate to the Java 2 security model instead.
Netscape security model is no longer supported.
Please migrate to the Java 2 security model instead.
protocol=file,fileURL.getHost()=,fileURL.getPort()=-1,fileURL.getFile()=/d:/acad_B/es/cat/STIP/Extract/410009.dwf
FileToArray url=file:/d:/acad_B/es/cat/STIP/Extract/410009.dwf
longName=dummy.dwf
java.lang.NullPointerException
at java.awt.Container.addImpl(Unknown Source)
at java.awt.Container.add(Unknown Source)
at cadtest20060320.CADViewerWrapper2.<init>(CADViewerWrapper2.java:84)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Unknown Source)
at oracle.forms.handler.UICommon.instantiate(Unknown Source)
at oracle.forms.handler.UICommon.onCreate(Unknown Source)
at oracle.forms.handler.JavaContainer.onCreate(Unknown Source)
at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
at oracle.forms.engine.Runform.processMessage(Unknown Source)
at oracle.forms.engine.Runform.processSet(Unknown Source)
at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
at oracle.forms.engine.Runform.onMessage(Unknown Source)
at oracle.forms.engine.Runform.sendInitialMessage(Unknown Source)
at oracle.forms.engine.Runform.startRunform(Unknown Source)
at oracle.forms.engine.Main.createRunform(Unknown Source)
at oracle.forms.engine.Main.start(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
__START CadWrapper public void init
__END CadWrapper public void init
What about -
Errors: "java.io.IOException: open HTTP connection failed"
I am trying to execute an applet, but ocorrs the following errors:
"Java.lang.ClassNotFoundException: InterfaceApplet.class Caused by: java.io.IOException: open HTTP connection failed"
Why don't open HTTP connection???
I already signed the applet and my applet.html is:
codebase='http://200.134.165.36/path' code= 'applet.class' archive='appletSigned.jar'
....It's not difficult understand the topic.
The actual DNS resolution implementation of Java is faulty.
It's the ONLY service in my Windows machine that couldn't do a correct DNS resolution, stand alone application, Internet Explorer and Mozzilla web pages with applet-
If i use IPs all go fine... when i use domain java fail.
ALL java... non only applet. Also Java Web Start fail.
I controlled proxy, there isn't. i say to java to do a direct connect.
The only thing in my net configuration of strange is the router, a zyxel 660hw... nothing else... my pc work fine with all the rest of the programs that use IPs. Only java is faulty. -
XSLT mapping with Java helper classes
Hi,
I'm trying to implement a XSLT mapping to convert my request to a specific soap request message format for this I'm calling some methods from a java helper class. I have imported the jar file into the archives. When I tried to test the interface it keeps complaing there is some exception but doesn't give me the exact error. Has any one called any java helper classes with in XSLT mapping, if so I would appreciate if you could help me with this. Here is the code from xsl.
<wsse:Security soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/07/secext" xmlns:UserToken="java:com.company.test.mapping.UserTokenMap">
<wsse:UsernameToken>
<wsse:Username xsi:type="soapenc:string" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
<xsl:value-of select="UserToken:getUsername()"/>
</wsse:Username>
<wsse:Password wsse:Type="wsse:PasswordDigest" xsi:type="soapenc:string" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
<xsl:value-of select="UserToken:getPasswordDigest()"/>
</wsse:Password>
<wsse:Nonce xsi:type="soapenc:string" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
<xsl:value-of select="UserToken:getNonce()"/>
</wsse:Nonce>
<wsu:Created xsi:type="soapenc:string" xmlns:wsu="http://schemas.xmlsoap.org/ws/2002/07/utility" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
<xsl:value-of select="UserToken:getCreateDate()"/>
</wsu:Created>
</wsse:UsernameToken>
</wsse:Security>
Thanks,
JoeHi,
I'm getting following exception when I refer to the java class with in my XSLT mapping. Any one encountered the same problem.
com.sap.engine.services.ejb.exceptions.BaseRemoteException:
Exception in method transform.
at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0.transform(MapServiceRemoteObjectImpl0.java:218)
at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0p4_Skel.dispatch(MapServiceRemoteObjectImpl0p4_Skel.java:104)
at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:320)
at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:198)
at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java:129)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native
Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: java.lang.UnsupportedClassVersionError:
com/earthlink/xi/mapping/UserTokenMap (Unsupported
major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native
Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.lang.ClassLoader.defineClass(ClassLoader.java:448)
at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingLoader.findClass(RepMappingLoader.java:175)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at com.sap.engine.lib.xsl.xpath.JLBLibrary.<init>(JLBLibrary.java:33)
at com.sap.engine.lib.xsl.xpath.LibraryManager.getFunction(LibraryManager.java:69)
at com.sap.engine.lib.xsl.xpath.ETFunction.evaluate(ETFunction.java:98)
at com.sap.engine.lib.xsl.xpath.XPathProcessor.innerProcess(XPathProcessor.java:56)
at com.sap.engine.lib.xsl.xpath.XPathProcessor.process(XPathProcessor.java:43)
at com.sap.engine.lib.xsl.xpath.XPathProcessor.process(XPathProcessor.java:51)
at com.sap.engine.lib.xsl.xslt.XSLValueOf.process(XSLValueOf.java:76)
at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
at com.sap.engine.lib.xsl.xslt.XSLTemplate.process(XSLTemplate.java:272)
at com.sap.engine.lib.xsl.xslt.XSLStylesheet.process(XSLStylesheet.java:463)
at com.sap.engine.lib.xsl.xslt.XSLStylesheet.process(XSLStylesheet.java:431)
at com.sap.engine.lib.xsl.xslt.XSLStylesheet.process(XSLStylesheet.java:394)
at com.sap.engine.lib.jaxp.TransformerImpl.transformWithStylesheet(TransformerImpl.java:398)
at com.sap.engine.lib.jaxp.TransformerImpl.transform(TransformerImpl.java:240)
at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingTransformer.transform(RepMappingTransformer.java:150)
at com.sap.aii.ibrep.server.mapping.ibrun.RepXSLTMapping.execute(RepXSLTMapping.java:81)
at com.sap.aii.ibrep.server.mapping.ibrun.RepSequenceMapping.execute(RepSequenceMapping.java:54)
at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingHandler.run(RepMappingHandler.java:80)
at com.sap.aii.ibrep.server.mapping.rt.MappingHandlerAdapter.run(MappingHandlerAdapter.java:107)
at com.sap.aii.ibrep.server.mapping.ServerMapService.transformInterfaceMapping(ServerMapService.java:127)
at com.sap.aii.ibrep.server.mapping.ServerMapService.transform(ServerMapService.java:104)
at com.sap.aii.ibrep.sbeans.mapping.MapServiceBean.transform(MapServiceBean.java:40)
at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0.transform(MapServiceRemoteObjectImpl0.java:167)
... 10 more
; nested exception is:
java.lang.UnsupportedClassVersionError:
com/earthlink/xi/mapping/UserTokenMap (Unsupported
major.minor version 49.0) -
I'm in a java programming class and i'm stuck.. so please help me guys...
Please help me, i really need help.
Thanks a lot guys...
this is my error:
C:\Temp>java Lab2
Welcome!
This program computes the average, the
exams
The lowest acceptable score is 0 and th
Please enter the minimum allowable scor
Please enter the maximum allowable scor
Was Exam1taken?
Please Enter Y N or Q
y
Enter the Score for Exam1:
65
Was Exam2taken?
Please Enter Y N or Q
y
Enter the Score for Exam2:
32
Was Exam3taken?
Please Enter Y N or Q
y
Enter the Score for Exam3:
65
Was Exam4taken?
Please Enter Y N or Q
y
Enter the Score for Exam4:
32
Was Exam5taken?
Please Enter Y N or Q
y
Enter the Score for Exam5:
32
Score for Exam1 is:65
Score for Exam2 is:32
Score for Exam3 is:32
Score for Exam4 is:32
Score for Exam5 is:32
the Minimum is:0
the Maximum is:0
Can't compute the Average
Can't compute the Variance
Can't compute the Standard Deviation
this is my code:
// Lab2.java
// ICS 21 Fall 2002
// Read in scores for a student's exams, compute statistics on them, and print out
// the scores and statistics.
public class Lab2
// Create a manager for this task and put it to work
public static void main(String[] args)
ExamsManager taskManager = new ExamsManager();
taskManager.createResults();
// ExamsManager.java for Lab 2
// ICS 21 Fall 2002
// make these classes in the Java library available to this program.
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.text.NumberFormat;
// ExamsManager creates managers and contains the tools (methods) they need to do their
// job: obtaining exam information, computing statistics and printing out that information
class ExamsManager
// INVALID_INT: special integer value to indicate that a non-integer
// was entered when an integer was requested. It's chosen so as not to
// conflict with other flags and valid integer values
public static final int INVALID_INT = -9999;
// valid user response constants:
public static final String YES = "Y"; // user responded "yes"
public static final String NO = "N"; // user responded "no"
public static final String EXIT_PROGRAM = "Q"; // user responded "leave the program NOW"
// INVALID_RESPONSE: special String value to indicate that something other than
// "Y", "N" or "X" was entered when said was required
public static final String INVALID_RESPONSE = "!";
// ABSOLUTE_MIN_SCORE and ABSOLUTE_MAX_SCORE represent the smallest
// minimum score and the largest maximum score allowed by the
// program. (The allowable minimum and maximum for one
// execution of the program may be different than these, but
// they must both lie within this range.)
public static final int ABSOLUTE_MIN_SCORE = 0;
public static final int ABSOLUTE_MAX_SCORE = 1000;
// The manager needs a place to store this student's exams
private OneStudentsWork thisWork;
// ...places to store the min and max scores allowed for these exams
private int minAllowedScore;
private int maxAllowedScore;
// ...and a place to hold input coming from the keyboard
BufferedReader console;
// -------------------- Constructor --------------------
// ExamsManager() make managers that delegate the major tasks of the program
public ExamsManager()
// -------------------- Processing methods --------------------
// createResults() is the "manager at work": it calls assistants to welcome the user,
// initializes things so we can read info from the keyboard,
// obtain the minimum and maximum allowed scores,
// obtain a student's work and comute the statistics on it and
// print out the scores and the statistics
public void createResults()
// *** YOUR CODE GOES HERE ***
printWelcomeMessage();
readyKeyboard();
obtainMinAndMaxAllowedScores();
obtainOneStudentsWork();
printResults();
// -------------------- User input methods --------------------
// readyKeyboard() sets up an input stream object 'console' connected to the keyboard
// so that what's typed can be read into the program and processed.
// Do not modify this code!
private void readyKeyboard()
console = new BufferedReader(new InputStreamReader(System.in));
// obtainMinAndMaxAllowedScores() asks the user to enter the minimum
// and maximum allowable scores for this execution of the program.
// Both the minimum and maximum allowable scores must be between
// ABSOLUTE_MIN_SCORE and ABSOLUTE_MAX_SCORE (inclusive). This
// method should continue to ask the user for a minimum until a
// valid one is entered (or EXIT_PROGRAM is entered), then continue
// to ask the user for a maximum until a valid one is entered. If
// the minimum entered is greater than the maximum entered, the
// whole thing should be done again.
public void obtainMinAndMaxAllowedScores()
// *** YOUR CODE GOES HERE ***
int response = INVALID_INT;
if (response >= minAllowedScore && response <= maxAllowedScore)
System.out.print("Please enter the minimum allowable score:");
response = getIntOrExit();
while (response > maxAllowedScore || response < minAllowedScore)
System.out.print("Please enter the minimum allowable score:");
response = getIntOrExit();
if (response <= ABSOLUTE_MAX_SCORE && response >= ABSOLUTE_MIN_SCORE)
System.out.print("Please enter the maximum allowable score:");
response = getIntOrExit();
while (response > ABSOLUTE_MAX_SCORE || response < ABSOLUTE_MIN_SCORE)
System.out.print("Please enter the maximum allowable score:");
response = getIntOrExit();
/*int response;
String allowedMin;
boolean done = true;
do
done = true;
System.out.print("Please enter the minimum allowable score:");
response = getIntOrExit();
allowedMin = getYNOrExit();
if(allowedMin == EXIT_PROGRAM)
System.exit(0);
else if (response >= ABSOLUTE_MIN_SCORE)
done = true;
else if (response >= ABSOLUTE_MAX_SCORE)
done = false;
System.out.println("INVALID: " + INVALID_INT);
System.out.print("Please enter the minimum allowable score:");
response = getIntOrExit();
}while (!done);
/* System.out.print("Please enter the maximum allowable score:");
response = getIntOrExit();
if (response <= ABSOLUTE_MAX_SCORE)
return response;
else if (response <= ABSOLUTE_MIN_SCORE)
response = INVALID_INT;
while (response == INVALID_INT)
System.out.print("Please enter the maximum allowable score:");
response = getIntOrExit();
do
done = true;
System.out.print("Please enter the minimum allowable score:");
response = getIntOrExit();
String allowedMax;
if(allowedMin == EXIT_PROGRAM)
System.exit(0);
if (response <= ABSOLUTE_MAX_SCORE)
done = true;
else if (response <= ABSOLUTE_MIN_SCORE)
done = false;
System.out.println("INVALID: " + INVALID_INT);
System.out.print("Please enter the maximum allowable score:");
response = getIntOrExit();
}while (!done);
// The overall strategy to building up a student work object is
// to have the student-bulding method call on the exam-building
// method, which calls upon user input methods to get exam info.
// Thus, user entered info is successively grouped together
// into bigger units to build the entire student information set.
// obtainOneStudentsWork() builds the five exams
// and constructs the student work object from them
private void obtainOneStudentsWork()
// *** YOUR CODE GOES HERE ***
int index = 1;
Exam exam1 = buildOneExam(index);
index = 2;
Exam exam2 = buildOneExam(index);
index = 3;
Exam exam3 = buildOneExam(index);
index = 4;
Exam exam4 = buildOneExam(index);
index = 5;
Exam exam5 = buildOneExam(index);
thisWork = new OneStudentsWork(exam1, exam2, exam3, exam4, exam5);
// buildOneExam(thisTest) reads the exam information for one exam and returns an
// Exam object constructed from this information. Uses obtainWasExamTaken() to
// determine if the exam was taken and obtainOneScore() to get the exam score, if needed.
private Exam buildOneExam(int thisTest)
// *** YOUR CODE GOES HERE ***
int score = 0;
if(obtainWasExamTaken(thisTest))
score = obtainOneScore(thisTest);
return new Exam(score);
else
return new Exam();
System.out.println("Enter score for exam1:");
Exam exam1 = new Exam(getIntOrExit());
System.out.println("Enter score for exam2:");
Exam exam2 = new Exam(getIntOrExit());
System.out.println("Enter score for exam3:");
Exam exam3 = new Exam(getIntOrExit());
System.out.println("Enter score for exam4:");
Exam exam4 = new Exam(getIntOrExit());
System.out.println("Enter score for exam5:");
Exam exam5 = new Exam(getIntOrExit());
// obtainWasExamTaken(thisTest) keeps asking the user whether 'thisTest' was taken
// (e.g., "Was exam 1 taken? Enter Y, N or Q", if thisTest equals 1)
// until s/he provides a valid response. If Q is entered, we leave the
// program immediately; if Y or N (yes or no), return true if yes, false if no
private boolean obtainWasExamTaken(int thisTest)
// *** YOUR CODE GOES HERE ***
String response = INVALID_RESPONSE;
System.out.println("Was Exam" + thisTest + "taken?");
while (response.equals(INVALID_RESPONSE))
System.out.println("Please Enter" + " " + YES + " " + NO + " " + "or" + " " + EXIT_PROGRAM);
response = getYNOrExit();
if (response.equals(YES))
return true;
else
return false;
// obtainOneScore(thisTest) keeps asking the user to enter a score for
// 'thisTest' (e.g., "Enter the score for exam 1", is thisTest equals 1)
// until s/he provides one within range or s/he tells us to exit the program.
private int obtainOneScore(int thisTest)
// *** YOUR CODE GOES HERE ***
int response = INVALID_INT;
if (response >= minAllowedScore && response <= maxAllowedScore);
System.out.println("Enter the Score for Exam" + thisTest + ":");
response = getIntOrExit();
while (response > ABSOLUTE_MAX_SCORE || response < ABSOLUTE_MIN_SCORE)
System.out.println("INVALID: " + INVALID_INT);
System.out.println("Please Enter again:");
response = getIntOrExit();
return response;
// scoreIsWithinRange() returns true if the given score is inside of
// the allowable range and false if it is out of range
private boolean scoreIsWithinRange(int score)
// *** YOUR CODE GOES HERE ***
if (score >= minAllowedScore && score <= maxAllowedScore)
return true;
else
return false;
// getYNQ() reads a String from the console and returns it
// if it is "Y" or "N" or exits the program if "Q" is entered;
// the method returns INVALID_RESPONSE if the response is other
// than"Y", "N" or "Q".
// Do not modify this code!
private String getYNOrExit()
String usersInput = INVALID_RESPONSE;
try
usersInput = console.readLine();
catch (IOException e)
// never happens with the keyboard...
usersInput = usersInput.toUpperCase();
if (usersInput.equals(EXIT_PROGRAM))
System.out.println("Leaving...");
System.exit(0);
if (usersInput.equals(YES) || usersInput.equals(NO))
return usersInput;
else
return INVALID_RESPONSE;
// getIntOrExit() reads an integer from the console and returns it.
// If the user types in "Q", the program exits. If an integer is entered,
// it is returned. If something that is not an integer (e.g. "Alex"), the
// program returns INVALID_INT
// Do not modify this code!
private int getIntOrExit()
String usersInput = "";
int theInteger = 0;
try
usersInput = console.readLine();
catch (IOException e)
// never happens with the keyboard...
// if the user wants to quit, bail out now!
if(usersInput.toUpperCase().equals(EXIT_PROGRAM))
System.out.println("Program halting at your request.");
System.exit(0);
// see if we have an integer
try
theInteger = Integer.parseInt(usersInput);
catch (NumberFormatException e)
// user's input was not an integer
return INVALID_INT;
return theInteger;
// -------------------- User output methods --------------------
// printWelcomeMessage() prints a welcome message to the user explaining
// what the program does and what it expects the user to do. In
// particular, it needs to tell the user the absolute lowest and
// highest acceptable exam scores
private void printWelcomeMessage()
// *** YOUR CODE GOES HERE ***
System.out.println("Welcome!");
System.out.println("This program computes the average, the variance, and the standard deviation of 5 exams");
System.out.println("The lowest acceptable score is 0 and the highest is 1000");
// printResults() prints all of the scores present, then prints the
// statistics about them. The statistics that can have factional parts
// -- average, variance and standard deviation -- should be printed with
// exactly three digits after the decimal point. If a statistic could not be
// computed, a message to that effect should print (NOT the "phony" value stored
// in the statistic to tell the program that the statistic could not be computed).
public void printResults()
// These statements create a NumberFormat object, which is part
// of the Java library. NumberFormat objects know how to take
// doubles and turn them into Strings, formatted in a particular
// way. First, you tell the NumberFormat object (nf) how you'd like
// the doubles to be formatted (in this case, with exactly 3
// digits after the decimal point). When printing a double you call
// format to format it -- e.g. nf.format(the-number-to-format)
NumberFormat nf = NumberFormat.getInstance();
nf.setMinimumFractionDigits(3);
nf.setMaximumFractionDigits(3);
// *** YOUR CODE GOES HERE ***
System.out.println("Score for Exam1 is:" + thisWork.getExam1().getScore());
System.out.println("Score for Exam2 is:" + thisWork.getExam2().getScore());
System.out.println("Score for Exam3 is:" + thisWork.getExam3().getScore());
System.out.println("Score for Exam4 is:" + thisWork.getExam4().getScore());
System.out.println("Score for Exam5 is:" + thisWork.getExam5().getScore());
if (thisWork.getStatistics().getMinimum() == Statistics.CANT_COMPUTE_STATISTIC)
System.out.println("Can't compute the Minimum");
else
System.out.println("the Minimum is:" + thisWork.getStatistics().getMinimum());
if (thisWork.getStatistics().getMaximum() == Statistics.CANT_COMPUTE_STATISTIC)
System.out.println("Can't compute the Minimum");
else
System.out.println("the Maximum is:" + thisWork.getStatistics().getMaximum());
if (thisWork.getStatistics().getAverage() == Statistics.CANT_COMPUTE_STATISTIC)
System.out.println("Can't compute the Average");
else
System.out.println("the Average is:" + thisWork.getStatistics().getAverage());
if (thisWork.getStatistics().getVariance() == Statistics.CANT_COMPUTE_STATISTIC)
System.out.println("Can't compute the Variance");
else
System.out.println("the Variance is:" + thisWork.getStatistics().getVariance());
if (thisWork.getStatistics().getStandardDeviation() == Statistics.CANT_COMPUTE_STATISTIC)
System.out.println("Can't compute the Standard Deviation");
else
System.out.println("the Standard Deviation is:" + thisWork.getStatistics().getStandardDeviation());
// OneStudentsExams.java for Lab 2
// ICS 21 Fall 2002
// OneStudentsWork is the exams and the statistics computed from
// them that comprise one student's work
class OneStudentsWork
public static final int NUMBER_OF_EXAMS = 5;
// The student is offered five exams...
private Exam exam1;
private Exam exam2;
private Exam exam3;
private Exam exam4;
private Exam exam5;
// The statistics on those exams
Statistics studentStats;
// -------------------- Constructor --------------------
// Takes five constructed exam objects and store them for this student.
// Constructs a statistics object that holds the stats for these exams and
// store it in studentStats.
public OneStudentsWork(Exam test1, Exam test2, Exam test3, Exam test4, Exam test5)
// *** YOUR CODE GOES HERE ***
exam1 = test1;
exam2 = test2;
exam3 = test2;
exam4 = test4;
exam5 = test5;
studentStats = new Statistics(test1, test2, test3, test4, test5);
// -------------------- Accessor methods --------------------
// getExamX() methods make available ExamX
public Exam getExam1()
return exam1;
public Exam getExam2()
return exam2;
public Exam getExam3()
return exam3;
public Exam getExam4()
return exam4;
public Exam getExam5()
return exam5;
// getStatistics() makes available the Statistics object that is part of this student's work
public Statistics getStatistics()
return studentStats;
// Statistics.java for Lab 2
// ICS 21 Fall 2002
// A Statistics object stores the statistics for a group of Exams.
class Statistics
// This constant denotes a statistic that cannot be
// computed, such as an average of zero scores or a variance
// of one score.
public static final int CANT_COMPUTE_STATISTIC = -9999;
// The stats
private int minimum;
private int maximum;
private int numberOfExamsTaken;
private double average;
private double variance;
private double standardDeviation;
// -------------------- Constructor --------------------
// Calculates (initializes) the statistics, using passed-in exams.
// Note that the order of computing thst stats matters, as some
// stats use others; for instance, variance must be computed before
// standard deviation.
public Statistics(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
calculateAverage(exam1,exam2,exam3,exam4,exam5);
calculateVariance(exam1,exam2,exam3,exam4,exam5);
calculateStandardDeviation(exam1,exam2,exam3,exam4,exam5);
// -------------------- Accessor methods --------------------
// getNumberOfExamsTaken() makes available the number of exams this student undertook
public int getNumberOfExamsTaken()
return numberOfExamsTaken;
// getMinimum() makes the minimum available
public int getMinimum()
return minimum;
// getMaximum() makes the maximum available
public int getMaximum()
return maximum;
// getAverage() makes the average available
public double getAverage()
return average;
// getVariance() make the variance available
public double getVariance()
return variance;
// getStandardDeviation() make the standard deviation available
public double getStandardDeviation()
return standardDeviation;
// -------------------- Statistics methods --------------------
// ---> Note: all statistics are to be computed using the number of exams taken
// calculateNumberOfExamsTaken() computes the number of tests the student took
// and stores the result in 'numberOfExamsTaken'
// (Note this statistic can always be computed.)
private void calculateNumberOfExamsTaken(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
numberOfExamsTaken = OneStudentsWork.NUMBER_OF_EXAMS;
// calculateMinimum() sets 'minimum' to the minimum score of exams taken, or
// to CANT_COMPUTE_STATISTIC if a minimum can't be computed.
private void calculateMinimum(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
/*min = exam1.getScore();
if (min > exam2.getScore())
min = exam2.getScore();
if (min > exam3.getScore())
min = exam3.getScore();
if (min > exam4.getScore())
min = exam4.getScore();
if (min > exam5.getScore())
min = exam5.getScore();
if(numberOfExamsTaken == 0)
minimum = CANT_COMPUTE_STATISTIC;
else if(numberOfExamsTaken == 1)
minimum = exam1.getScore();
else
minimum = exam1.getScore();
if(numberOfExamsTaken >= 2 && numberOfExamsTaken <= minimum)
minimum = exam2.getScore();
if(numberOfExamsTaken >= 3 && numberOfExamsTaken <= minimum)
minimum = exam3.getScore();
if(numberOfExamsTaken >= 4 && numberOfExamsTaken <= minimum)
minimum = exam4.getScore();
if(numberOfExamsTaken >= 5 && numberOfExamsTaken <= minimum)
minimum = exam5.getScore();
if (getMinimum() == ExamsManager.ABSOLUTE_MIN_SCORE)
minimum = exam1.getScore();
//exam1.getScore() = getMinimum();
else
exam1.getScore() = CANT_COMPUTE_STATISTIC;
// calculateMaximum() sets 'maximum' to the maximum score of exams taken, or
// to CANT_COMPUTE_STATISTIC if a maximum can't be computed.
private void calculateMaximum(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
/*if (maximum == ExamsManager.ABSOLUTE_MAX_SCORE)
return true;
else
return CANT_COMPUTE_STATISTIC;*/
max = exam1.getScore();
if (max < exam2.getScore())
max = exam2.getScore();
if (max < exam3.getScore())
max = exam3.getScore();
if (max < exam4.getScore())
max = exam4.getScore();
if (max < exam5.getScore())
max = exam5.getScore();
if(numberOfExamsTaken == 0)
maximum = CANT_COMPUTE_STATISTIC;
else if(numberOfExamsTaken == 1)
maximum = exam1.getScore();
else
maximum = exam1.getScore();
if(numberOfExamsTaken >= 2 && numberOfExamsTaken >= maximum)
maximum = exam2.getScore();
if(numberOfExamsTaken >= 3 && numberOfExamsTaken >= maximum)
maximum = exam3.getScore();
if(numberOfExamsTaken >= 4 && numberOfExamsTaken >= maximum)
maximum = exam4.getScore();
if(numberOfExamsTaken >= 5 && numberOfExamsTaken >= maximum)
maximum = exam5.getScore();
// calculateAverage() computes the average of the scores for exams taken and
// stores the result in 'average'. Set to CANT_COMPUTE_STATISTIC if there
// are no tests taken.
private void calculateAverage(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
if (numberOfExamsTaken == 5)
average = (exam1.getScore()+exam2.getScore()+exam3.getScore()+exam4.getScore()+exam5.getScore()/OneStudentsWork.NUMBER_OF_EXAMS);
else if (numberOfExamsTaken == 4)
average = (exam1.getScore()+exam2.getScore()+exam3.getScore()+exam4.getScore()/OneStudentsWork.NUMBER_OF_EXAMS);
else if (numberOfExamsTaken == 3)
average = (exam1.getScore()+exam2.getScore()+exam3.getScore()/OneStudentsWork.NUMBER_OF_EXAMS);
else if (numberOfExamsTaken == 2)
average = (exam1.getScore()+exam2.getScore()/OneStudentsWork.NUMBER_OF_EXAMS);
else if (numberOfExamsTaken == 1)
average = (exam1.getScore()/OneStudentsWork.NUMBER_OF_EXAMS);
else if (numberOfExamsTaken == 0)
average = CANT_COMPUTE_STATISTIC;
// calculateVariance() calculates the returns the variance of the
// scores for exams taken and stores it in 'variance'
// For a small set of data (such as this one), the formula for calculating variance is
// the sum of ((exam score - average) squared) for scores of exams taken
// divided by (the number of scores - 1)
// Set to CANT_COMPUTE_STATISTIC if there are fewer than two tests taken.
private void calculateVariance(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
if (numberOfExamsTaken == 5)
variance = ((exam1.getScore()-average)*(exam1.getScore()-average)+(exam2.getScore()-average)*(exam2.getScore()-average)+(exam3.getScore()-average)*(exam3.getScore()-average)+(exam4.getScore()-average)*(exam4.getScore()-average)+(exam5.getScore()-average)*(exam5.getScore()-average))/4;
else if (numberOfExamsTaken == 4)
variance = ((exam1.getScore()-average)*(exam1.getScore()-average)+(exam2.getScore()-average)*(exam2.getScore()-average)+(exam3.getScore()-average)*(exam3.getScore()-average)+(exam4.getScore()-average)*(exam4.getScore()-average))/4;
else if (numberOfExamsTaken == 3)
variance = ((exam1.getScore()-average)*(exam1.getScore()-average)+(exam2.getScore()-average)*(exam2.getScore()-average)+(exam3.getScore()-average)*(exam3.getScore()-average))/4;
else if (numberOfExamsTaken == 2)
variance = ((exam1.getScore()-average)*(exam1.getScore()-average)+(exam2.getScore()-average)*(exam2.getScore()-average))/4;
else if (numberOfExamsTaken < 2)
variance = CANT_COMPUTE_STATISTIC;
// calculateStandardDeviation() calculates the standard
// deviation of the scores of taken exams and stores
// it in 'standardDeviation'
// The formula for calculating standard deviation is just
// the square root of the variance
private void calculateStandardDeviation(Exam exam1, Exam exam2, Exam exam3, Exam exam4, Exam exam5)
// *** YOUR CODE GOES HERE ***
if (variance == CANT_COMPUTE_STATISTIC)
standardDeviation = CANT_COMPUTE_STATISTIC;
else
standardDeviation = (Math.sqrt(variance));
// Exam.java for Lab 2
// ICS 21 Fall 2002
// An Exam object stores information about one exam
class Exam
private boolean examTaken; //was the exam taken? true for yes, false for no
private int score; //the exam's score; = 0 if test not taken
// -------------------- Constructors --------------------
// Construct a taken exam; it has score 's'
public Exam(int s)
score = s;
examTaken = true;
// Construct an exam not taken; it has a score of 0
public Exam()
score = 0;
examTaken = false;
// -------------------- Accessor methods --------------------
// Make the score of an exam available
public int getScore()
return score;
// Make available whether an exam was taken
public boolean wasTaken()
return examTaken;Your code is absolutely unreadable - even if someone was willing to
help, it's simply impossible. I do give you a few tips, though: If you
understand your code (i.e. if it really is YOUR code), you should be
able to realize that your minimum and maximum never get set (thus they
are both 0) and your exam 3 is set with the wrong value. SEE where
those should get set and figure out why they're not. Chances are you
are doing something to them that makes one 'if' fail or you just
erroneously assign a wrong variable! -
How do I import classes in a jar file?
I have the following directory structure, each directory is a seperate package of the same name as the directory
RPGUniversal
RPGMap
RPGCharacter
RPGCharacter is not done yet so I am ignoring that package for now.
RPGCharacter and RPGMap both depends on classes inside the RPGUniversal Package, but are independant of eachother and RPGUniversal is completely independant.
I want to place each package in it's own .jar file for use as a library in later programs.
I placed all the compiled classes for RPGUniversal inside the proper directory structure, I then used this command to place it in a jar:
jar -cf ./RPGUniversal.jar ./RPGUniversal/*
I then tested the contents with this command:
exodist@Abydos:/stuff/JProject/test$ jar -tf RPGUniversal.jar
META-INF/
META-INF/MANIFEST.MF
RPGUniversal/ADTs/
RPGUniversal/ADTs/t1.jpg
RPGUniversal/ADTs/t2.jpg
RPGUniversal/ADTs/t3.jpg
RPGUniversal/ADTs/t4.jpg
RPGUniversal/ADTs/Coordinates.class
RPGUniversal/ADTs/RPGImage.class
RPGUniversal/ADTs/FrameSet.class
RPGUniversal/ADTs/ImageTester.class
RPGUniversal/Exceptions/
RPGUniversal/Interfaces/
RPGUniversal/Interfaces/RPGCharacter.class
RPGUniversal/Interfaces/RPGItem.class
RPGUniversal/Interfaces/RPGObject.class
RPGUniversal/Interfaces/Trackable.class
RPGUniversal/Interfaces/Tracker.class
RPGUniversal/Interfaces/RPGMapComponent.class
RPGUniversal/Interfaces/RPGMap.class
so far all good, next I delete the RPGUniversal directory leaving the only file in the current directory RPGUniversal.jar
next I create the RPGMap directory and give it the proper .java files and directory tree.
I then run a script to compile every .java file
for i in `find ./ -name "*.java"`; do javac "$i"; done
and I get a ton of dependancy errors:
exodist@Abydos:/stuff/JProject/test$ for i in `find ./ -name "*.java"`; do javac "$i"; done
./RPGMap/BaseClasses/StaticMap.java:13: package RPGUniversal.Interfaces does not exist
import RPGUniversal.Interfaces.*;
^
./RPGMap/BaseClasses/StaticMap.java:20: cannot resolve symbol
symbol : class RPGMap
location: class RPGMap.BaseClasses.StaticMap
public abstract class StaticMap implements RPGMap
^
./RPGMap/ComponentClasses/MapTile.java:9: package RPGUniversal.Interfaces does not exist
import RPGUniversal.Interfaces.*;
^
./RPGMap/ComponentClasses/MapTile.java:10: package RPGUniversal.ADTs does not exist
import RPGUniversal.ADTs.*;
^
./RPGMap/ComponentClasses/MapTile.java:16: cannot resolve symbol
symbol : class RPGObject
location: class RPGMap.ComponentClasses.MapTile
public class MapTile implements RPGObject
^
./RPGMap/ComponentClasses/MapTile.java:19: cannot resolve symbol
symbol : class RPGImage
location: class RPGMap.ComponentClasses.MapTile
private RPGImage MyImage;
^
./RPGMap/ComponentClasses/MapTile.java:31: cannot resolve symbol
symbol : class Coordinates
location: class RPGMap.ComponentClasses.MapTile
public boolean CheckForCollision(Coordinates C)
....the list goes on........
how do I tell it to look inside the RPGUniversal.jar file to find the required classes?
here is a directory tree so you can see how it is set up:
ls -R1
RPGMap/
RPGUniversal.jar
./RPGMap:
BaseClasses/
ComponentClasses/
ExternalInterfaces/
HigherClasses/
InternalInterfaces/
./RPGMap/BaseClasses:
StaticMap.java
./RPGMap/ComponentClasses:
MapTable.java
MapTile.java
TableList.java
TileSet.java
./RPGMap/ExternalInterfaces:
./RPGMap/HigherClasses:
DynamicMap.java
./RPGMap/InternalInterfaces:The JAR file needs to be in the compliers classpath : javac -classpath "$CLASSPATH:RPGUniversal.jar" "$i"
-
How can i execute Spaces API in java main class?
Hi
I am able to execute Spaces API through portal application. However if i try to execute it in java main class, its throwing an exception
"SEVERE: java.io.FileNotFoundException: .\config\jps-config.xml (The system cannot find the path specified)"
oracle.wsm.common.sdk.WSMException: WSM-00145 : Keystore location or path can not be null or empty; it must be configured through JPS configuration or policy configuration override.
How can i set this path, so that i can execute Spaces API from java main class.
Need this main class to configure in cron job, to schedule a task.
Regards
RajHi Daniel
Currently i have implemented create functionality in my portal application using Spaces API, which is working fine. Now the requirement is, i need to implement a "Cron Job" to schedule a task, which will execute to create space(for example once in a week). Cron job will execute only the main method. So I have created java main class, in which I have used Spaces API to perform create space operation. Then it was giving exception.
Later I understood the reason, as I am executing the Space API with a simple JSE client, its failing since a simple java program has no idea of default-keystore.jks, jps-config.xml, Security Policy. Hence i have included those details in main class. Now I am getting new error,
SEVERE: WSM-06303 The method "registerListener" was not called with required permission "oracle.wsm.policyaccess"
For your reference i have attached the code below, please help. How can i use Spaces API in java main method(i mean public static void main(String[] args) by giving all required information.
public static void main(String[] args) throws InstantiationException,
GroupSpaceWSException,
SpacesException {
Class2 class2 = new Class2();
GroupSpaceWSContext context = new GroupSpaceWSContext();
FactoryFinder.init(null);
context.setEndPoint("http://10.161.226.30/webcenter/SpacesWebService");
context.setSamlIssuerName("www.oracle.com");
context.setRecipientKeyAlias("orakey");
Properties systemProps = System.getProperties();
systemProps.put("java.security.policy","oracle/wss11_saml_or_username_token_with_message_protection_client_policy");
systemProps.put("javax.net.ssl.trustStore","C:\\Oracle\\Middleware11.1.7\\wlserver_10.3\\server\\lib\\cacerts.jks");
systemProps.put("oracle.security.jps.config","C:\\Oracle\\Middleware11.1.7\\user_projects\\domains\\workspace\\system11.1.1.7.40.64.93\\DefaultDomain\\config\\fmwconfig\\jps-config.xml");
systemProps.put("javax.net.ssl.keyStore",C:\\Oracle\\Middleware11.1.7\\user_projects\\domains\\workspace\\system11.1.1.7.40.64.93\\DefaultDomain\\config\\fmwconfig\\consumer.jks");
systemProps.put("javax.net.ssl.keyStorePassword", "Test12");
System.setProperties(systemProps);
GroupSpaceWSClient groupSpaceWSClient;
try {
groupSpaceWSClient = new GroupSpaceWSClient(context);
System.out.println("URL: " +
groupSpaceWSClient.getWebCenterSpacesURL());
//delete the Space
List<String> groupSpaces = groupSpaceWSClient.getGroupSpaces(null);
System.out.println("GroupSpaces:: " + groupSpaces.size());
} catch (Exception e) {
Regards
Raj -
How to Modify Override Handler class in jsse.jar
Hi,
Is there a way to change port number in Handler class in jsse.jar and recompile the Java file, or override the class?
The Handler class seems to be using port number 443, whereas the the Webserver of PS Application is using a different port number (7004).
Any ideas.
Thanks
JayYou're over-thinking this. The Handler class uses whatever port it is told to use by the person that constructs it. 443 is just the default.
All you have to do is put the required port number into the https URL, e.g. https://www.myhost.com:7004. -
Using a UNIX shell script to run a Java program (packaged in a JAR)
Hi,
I have an application (very small) that connects to our database. It needs to run in our UNIX environment so I've been working on a shell script to set the class path and call the JAR file. I'm not making a lot of progress on my own. I've attached the KSH (korn shell script) file code.
Thanks in advance to anyone who knows how to set the class path and / or call the JAR file.
loggedinuser="$(whoami)"
CFG_DIR="`dirname $0`"
EXIT_STATUS=${SUCCESS}
export PATH=/opt/java1.3/bin:$PATH
OLDDIR="`pwd`"
cd $PLCS_ROOT_DIR
java -classpath $
EXIT_STATUS=$?
cd $OLDDIR
echo $EXIT_STATUS
exit $EXIT_STATUSHi,
I have an application (very small) that connects to
our database. It needs to run in our UNIX environment
so I've been working on a shell script to set the
class path and call the JAR file.
#!/bin/sh
exec /your/path/to/java -cp your:class:paths:here -MoreJvmOptionsHere your.package.and.YourClass "$@"Store this is a file of any name, e.g. yuckiduck, and then change the persmissions to executechmod a+x yuckiduckThe exec makes sure the shell used to run the script does not hang around until that java program finishes. While this is only a minor thing, it is nevertheless infinite waste, because it does use some resources but the return on that investment is 0.
CFG_DIR="`dirname $0`"You would like to fetch the directory of the installation out of $0. This breaks as soon as someone makes a (soft) link in some other directory to this script and calls it by its soft linked name. Your best bet if you don't know a lot of script programming is to hardcode CFG_DIR.
OLDDIR="`pwd`"
cd $PLCS_ROOT_DIRVery bad technique in UNIX. UNIX supports the notion of a "current directory". If your user calls this program in a certain directory, you should assume that (s)he does this on purpose. Making your application dependent on a start in a certain directory ignores the very helpful concept of 'current directory' and is therefore a bug.
cd $OLDDIRThis has no effect at all because it only affects the next two lines of code and nothing else. These two lines, however, don't depend on the current directory. In particular this (as the cd above) does not change the current directory for the interactive shell your user is working in.
echo $EXIT_STATUS
exit $EXIT_STATUSEchoing the exit status is an interesting idea, but if you don't do this for a very specific purpose, I recommend not to do this for the simple reason that no other UNIX program does it.
Harald.
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