Aspectj with JVM is giving Exception in thread "main" java.lang.NoSuchMetho

Dear Forum Experts,
I have installed JDK and Aspectj in C:\Program Files\Java\jdk1.5.0_03. I wrote a aspect to trace my program. i compiled using ajc -argfile Temp/tracev1.lst.
compiled fine..but i ran my aspect using command..C:\..\jdk1.5.0_03\java Temp.version1.TraceMyClasses
i'm getting error..Exception in thread "main" java.lang.NoSuchMetho
i should get tracing of all stack trace in format: return type:Package:Methods: Signatures
My Class paths are as follows:
classpath
set PATH=%PATH%;C:\Program Files\Java\jdk1.5.0_03\bin;
JAVA_HOME
C:\Program Files\java\jdk1.5.0_03
PATH
C:\Program Files\java\jdk1.5.0_03\bin
I Burst out from it..Plz help me out in this..
Regards
Raj

What method does it say that it can't find?
You might just need to make sure that your compilation of all files is up to date. If you remove a method from one file and recompile only that file, and then you try to call the old method from a file that hasn't been recompiled, you will get that error. If you had tried to recompile the second file, it wouldn't have compiled, because of the removed method.

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OUI is not openinig. Exception in thread "main" java.lang.NoClassDefFound

hi.
while i'm trying to install oracle server, getting the below error
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Checking monitor: must be configured to display at least 256 colors
>>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set. Failed <<<<
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Ignoring required pre-requisite failures. Continuing...Preparing to launch Oracle Universal Installer from /tmp/OraInstall2012-09-27_02-55-33AM. Please wait ...[satish@rac1 database]$ Exception in thread "main" java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at java.awt.Toolkit$2.run(Toolkit.java:821)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)
at com.jgoodies.looks.LookUtils.isLowResolution(Unknown Source)
at com.jgoodies.looks.LookUtils.<clinit>(Unknown Source)
at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:122)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1783)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:480)
at oracle.install.commons.util.Application.startup(Application.java:758)
at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:164)
at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:181)
at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:265)
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hi Srini,
thanks for your time.
I am trying to install it on RHEL 5 on VMWare Player, and the db version is 11g.
i think the problem is with the below error
Exception in thread "main" java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at java.awt.Toolkit$2.run(Toolkit.java:821)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)
at com.jgoodies.looks.LookUtils.isLowResolution(Unknown Source)
at com.jgoodies.looks.LookUtils.<clinit>(Unknown Source)
at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:122)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1783)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:480)
at oracle.install.commons.util.Application.startup(Application.java:758)
at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:164)
at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:181)
at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:265)
at oracle.install.ivw.db.driver.DBInstaller.startup(DBInstaller.java:114)
at oracle.install.ivw.db.driver.DBInstaller.main(DBInstaller.java:132)

HELP Needed with this error: Exception in thread "main" java.lang.NoClass

Folks,
I am having a problem connecting to my MSDE SQL 2000 DB on a WindowsXP pro. environment. I am learning Java and writing a small test prgm to connect the the database. The code compiles ok, but when I try to execute it i keep getting this error:
"Exception in thread "main" java.lang.NoClassDefFoundError: Test1"
I am using the Microsoft jdbc driver and my CLASSPATH is setup correctly, I've also noticed that several people have complained about this error, but have not seen any solutions....can someone help ?
Here is the one of the test programs that I am using:
import java.sql.*;
* Microsoft SQL Server JDBC test program
public class Test1 {
public Test1() throws Exception {
// Get connection
DriverManager.registerDriver(new
com.microsoft.jdbc.sqlserver.SQLServerDriver());
Connection connection = DriverManager.getConnection(
"jdbc:microsoft:sqlserver://LAPTOP01:1433","sa","sqladmin");
if (connection != null) {
System.out.println();
System.out.println("Successfully connected");
System.out.println();
// Meta data
DatabaseMetaData meta = connection.getMetaData();
System.out.println("\nDriver Information");
System.out.println("Driver Name: "
+ meta.getDriverName());
System.out.println("Driver Version: "
+ meta.getDriverVersion());
System.out.println("\nDatabase Information ");
System.out.println("Database Name: "
+ meta.getDatabaseProductName());
System.out.println("Database Version: "+
meta.getDatabaseProductVersion());
} // Test
public static void main (String args[]) throws Exception {
Test1 test = new Test1();

I want to say that there was nothing wrong
with my classpath config., I am still not sure why
that didn't work, there is what I did to resolved
this issue.You can say that all you like but if you are getting NoClassDefFound errors, that's because the class associated with the error is not in your classpath.
(For future reference: you will find it easier to solve problems if you assume that the problem is your fault, instead of trying to blame something else. It almost always is your fault -- at least that's been my experience.)
1. I had to set my DB connection protocol to TCP/IP
(this was not the default), this was done by running
the
file "svrnetcn.exe" and then in the SQL Server Network
Utility window, enable TCP/IP and set the port to
1433.Irrelevant to the classpath problem.
2. I then copied all three of the Microsoft JDBC
driver files to the ..\jre\lib\ext dir of my jdk
installed dir.The classpath always includes all jar files in this directory. That's why doing that fixed your problem. My bet is that you didn't have the jar file containing the driver in your classpath before, you just had the directory containing that jar file.
3. Updated my OS path to located these files
and....BINGO! (that simple)Unnecessary for solving classpath problems.
4. Took a crash course on JDBC & basic Java and now I
have created my database, all tables, scripts,
stored procedures and can read/write and do all kinds
of neat stuff.All's well that ends well. After a few months you'll wonder what all the fuss was about.

Help with Exception in thread "main" java.lang.NullPointerException

I got this exception while running the code in Netbeans IDE 6.1. The code is compiling fine...Please tell me what the problem is
Exception in thread "main" java.lang.NullPointerException
at Softwareguide.chooseanswer(Softwareguide.java:32)
at Driver.main(Driver.java:7)
public class Driver
    public static void main(String[] args)
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        swguide.chooseanswer();
public class Softwareguide
    State test1;
    State test2;
    State test3;
    State test4;
    State test5;
    State subtest1;
    State subtest2;
    State subtest3;
    State subtest4;
    State subtest5;
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        test2 = new Test2(this);
        test3 = new Test3(this);
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        subtest1 = new SubTest1(this);
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        state.chooseanswer();
   /* public void chooseyes()
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    public State getState()
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    void setState(State state)
     this.state = state;
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    public State getTest2State()
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        return test3;
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        return test4;
    public State getTest5State()
        return test5;
    public State getsubTest1State()
        return subtest1;
    public State getsubTest2State()
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    public State getsubTest5State()
        return subtest5;
    public String toString()
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}

spiderjava wrote:
the variable state is assigned to test1. This variable(test1) is not initialized anywhere.It is initialized in the c'tor. Which is invoked after the "global" object and attribute initialization. So it is there, but comes too late.
You should definitly not write a technical Java blog and post it all over the place.

Need help with Exception in thread "main" java.lang.NullPointerException

here is the error
Exception in thread "main" java.lang.NullPointerException
at stream.createFrame(stream.java:153)
at chat.createMessage(chat.java:14)
this is where the error is in stream
public void createFrame(int id) {
*buffer[currentOffset++] = (byte)(id + packetEncryption.getNextKey());*
and this is where it comes from in chat
outStream.createFrame(85);
i just cant see whats causeing the exception

spiderjava wrote:
the variable state is assigned to test1. This variable(test1) is not initialized anywhere.It is initialized in the c'tor. Which is invoked after the "global" object and attribute initialization. So it is there, but comes too late.
You should definitly not write a technical Java blog and post it all over the place.

FB 4.7 AIR 3.6 Flex 4.9 iOS packing - Exception in thread "main" java.lang.OutOfMemoryError'

I've got an error similar to Isaac_Sunkes' 'FB 4.7 iOS packaging - Exception in thread "main" java.lang.OutOfMemoryError',
but the causes are not related to what he discovered, corrupt image or other files, I'd exclude bad archive contents in my project.
I'm using Flash Builder 4.7 with Adobe AIR 3.6 set into an Apache Flex 4.9.1 SDK;
HW system is:
iMac,    2,7 GHz Intel Core i5,    8 GB 1600 MHz DDR3,    NVIDIA GeForce GT 640M 512 MB,    OS X 10.8.2 (12C3103)
The Flash project consists in an application with a main SWF file which loads, via ActionScript methods, other SWF in cascade.
I've formerly compiled and run the application on an iPad 1, IOS 5.0.1 (9A405), but got on the device the error alert:
"Uncompiled ActionScript
Your application is attempitng to run
uncompiled ActionScript, probably
due to the use of an embedded
SWF. This is unsupported on iOS.
See the Adobe Developer
Connection website for more info."
Then I changed the FB compiler switches, now are set to:
-locale en_US
-swf-version=19
Please note that without the switch    -swf-version=19     the application is compiled correctly and the IPA is sent to the device
and I can debug it, but iOS traps secondary SWF files and blocke the app usage, as previously told.
they work on deploy of small applications,
but, when I try to build a big IPA file either for an ad-hoc distribution, either for an debug on device, after some minutes long waiting, I get a Java stuck, with this trace:
Error occurred while packaging the application:
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
    at java.util.HashMap.addEntry(HashMap.java:753)
    at java.util.HashMap.put(HashMap.java:385)
    at java.util.HashSet.add(HashSet.java:200)
    at adobe.abc.Algorithms.addUses(Algorithms.java:165)
    at adobe.abc.Algorithms.findUses(Algorithms.java:187)
    at adobe.abc.GlobalOptimizer.sccp(GlobalOptimizer.java:4731)
    at adobe.abc.GlobalOptimizer.optimize(GlobalOptimizer.java:3615)
    at adobe.abc.GlobalOptimizer.optimize(GlobalOptimizer.java:2309)
    at adobe.abc.LLVMEmitter.optimizeABCs(LLVMEmitter.java:532)
    at adobe.abc.LLVMEmitter.generateBitcode(LLVMEmitter.java:341)
    at com.adobe.air.ipa.AOTCompiler.convertAbcToLlvmBitcodeImpl(AOTCompiler .java:599)
    at com.adobe.air.ipa.BitcodeGenerator.main(BitcodeGenerator.java:104)
I've tried to change the Java settings on FB's eclipse.ini in MacOS folder,
-vmargs
-Xms(various settings up to)1024m
-Xmx(various settings up to)1024m
-XX:MaxPermSize=(various settings up to)512m
-XX:PermSize=(various settings up to)256m
but results are the same.
Now settings are back as recommended:
-vmargs
-Xms256m
-Xmx512m
-XX:MaxPermSize=256m
-XX:PermSize=64m
I've changed the Flex build.properties
jvm.args = ${local.d32} -Xms64m -Xmx1024m -ea -Dapple.awt.UIElement=true
with no results; now I'n get back to the standard:
jvm.args = ${local.d32} -Xms64m -Xmx384m -ea -Dapple.awt.UIElement=true
and now I truely have no more ideas;
could anyone give an help?
many thanks in advance.

I solved this. It turns out the app icons were corrupt. After removing them and replacing them with new files this error went away.

Exception in thread "main" java.lang.OutOfMemoryError(please help me )

Hi All
here my java class trying to read a txt file(which is having size of 60MB).and putting each line into a Vector class. problem is ,upto certain number of line it is reading properly and putting into vector..after that it is giving error like Exception in thread "main" java.lang.OutOfMemoryError..what is the problem and how to rectify this one..anybody help me on this.
actual situation is one txt is there in that 80 lakhs of lines of content is there..java file trying to read each line and put it into vector or stringbuffer and split it into two lines like key=value and put it into hashmap object.then finally iam creating new file(.properties) and writing these hashmap data on it. if you want clearly..please look into below code..
package test.utf8; import java.io.*; import java.util.*; public class AssetUtils
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public AssetUtils()
public static void main(String args[]) throws IOException
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Object obj = null;
int n=0;
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do
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//System.out.println("line no: "+ ++n);
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break;
vector.add(s);
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String s1 = args[0];
System.out.println("S1: "+s1);
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System.out.println("i value:"+i);
String s2 = (String)vector.get(i);
//System.out.println("S2: "+s2);
if(s2.indexOf("/") != -1)
String s3 = s2.substring(s1.length(), s2.length());
//System.out.println("S3: "+s3);
if(s3.indexOf("/") != -1) {
String s4 = s3.substring(0, s3.lastIndexOf("/"));
//System.out.println("S4: "+s4);
String s6 = s3.substring(s3.lastIndexOf("/") + 1, s3.length());
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if(s8 != null) stringbuffer.append(s8 + "," + s6);
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stringbuffer.append(s6);
hashmap.put(s4, stringbuffer.toString());
//stringbuffer.delete(0,stringbuffer.length());
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File file = new File("D:\\asset.properties");
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String s7;
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Theres a number of ways you can improve your memory usage:
1) Build you map as you read in your file.
2) Use StringBuffers in your map - do not use "asshaj" + "ashaskj" This is very memory intensive
If you still run out of memory try running the JVM using -Xms128m -Xmx512m or higher

Exception in thread "main" java.lang.NoClassDefFoundError: java/sql/Savepoi

I am getting the following exception described below:
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at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java, Compiled Code)
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I am using java version "1.4.2_09" for the JDBC Connection. Is it the version problem or can be a problem specific to the code?

hello debdatta
The JVM is unable to find the class. Just check ur driver class whether its included in the class path.
and its not getting the location of the file. The path where ur program is searching the class isnt there. so its the problem with ur path not the program.

How do I stop "Exception in thread "main" java.lang.OutOfMemoryError.java heap space

I'm trying to rebuild my iPhone app, with hires graphics etc, using CS6 Flash Pro. However, I get this now,
Exception in thread "main" java.lang.OutOfMemoryError.java heap space ..... followed by a lot of location information related to the error.
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Hmmm. Maybe I was doing something wrong with images, and icons. I'm not sure, as it's not at all clear really.
This is the Icons screen from CS6, can't see the files above 512x512unless scrolling up - 29x29,57x57,114x114. no matter.
So - after reading and rereading the Apple specs and directions, I removed the 512x512 and the 1024x1024 images from the Icons list that get pulled in during build.
Next, I again re-read the Apple directives, and put the required files for the build into the base directory of the build, as per this image.
In actual fact - I can probably leave out the last two. iTunesArtwork.xxx But I don't know, because it is entirely unclear on that point. I can find no directive regarding this at all.
Do I upload them myself? Probably? I don't know.
HOWEVER.
The build now completes. Java, or something, was very confused about finding that file called 1024x1024.png in the build list, and would not do it.
Take it out of icons, built fine. Put it in the icons directory, and crash...
Now - with the setup I am using, it all builds fine for ipad and iphone, in all resolutions.
I don't know what the problem is with what Java is seeing, but this fixes it it seems.
Hope that helps anyone else.
cheers

Windows 2000: Exception in thread "main" java.lang.NoClassDefFoundError

I've had much success using Java 1.4.0-beta under Win98. After upgrading to Win2000, I can't get Java to execute the class file. Everything compiles just fine, but when I attempt to execute the program, I get the following error (ics 21 is the folder with all my files, Hello is the program):
C:\ics 21>java Hello
Exception in thread "main" java.lang.NoClassDefFoundError: Hello
Source code for the highly complex and mind boggling "Hello World!" program I'm attempting to run:
public class Hello
public static void main(String[] args)
System.out.println("Hello world!");
My PATH is setup just fine trust me, and my CLASSPATH ain't too shabby either. Like I said, everything compiles fine, it just doesn't run. Any help would be greatly appreciated!

The Classpath setting is a list of directories in which the javac compiler and JVM search to find classes. That's why your error is almost certainly a Classpath problem. Your class Hello is in a file name Hello.class. The directory that holds Hello.class must be in your Classpath. One way to achieve this is to include . (the current directory) in your Classpath and CD to the directory where Hello.class is.

Can't get by Exception in thread "main" java.lang.NoClassDefFoundError:

With the help of someone on the Forum, I resolved the class reference that was giving me fits. But I'm still getting
Exception in thread "main" java.lang.NoClassDefFoundError: jform_example
This is all the information that I get. It compiles and runs from SunOne IDE, but not from command line. What Class reference or whatever am I missing? I don't know that my environment variables are correct. I've tried to find a comprehensive list of steps to do so, but without success. So I've been winging it.
What information should I provide that will help you help me. I'm spending WAY to much time on this issue.
Help!
Gary

This error occurs when the java.exe program can not find the class whose name was specified on the command line. Note that the argument to java.exe is the class name not a file name. java.exe tried to find a file whose name is jform_example.class. It searched the directories that were in your system's Classpath environment variable at the time of command execution. It didn't find the file.
So the file jform_example.class must exist, must be named exactly as specified (java is case sensitive so Jform_Example won't work), the source code must not start with a package statement (a package statement means the class name is package_name.jform_example), and the jform_example.class must be in a directory that's in your Classpath.
Try to CD to the directory where jform_example.class is located and use the command "java -classpath . jform_example" This uses the current directory as the Classpath during execution.

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1

hi to all.
iam getting this error: could any one give me the solution.
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at DinosaursDataLoader.getData(DinosaursDataLoader.java:49)
at DinosaursPack.load(DinosaursPack.java:22)
at DinosaursPack.<init>(DinosaursPack.java:18)
at myproject.main(myproject.java:17)
import java.util.*;
import java.io.*;
import javax.swing.ImageIcon;
public class Driver {
    public static void main (String[] args) {
          // create a Scanner and grab the data . . .
             File f=new File("C:\\Users\\hariprasad koineni\\Desktop\\r.txt");// my text file containes 12 dinosuor card info
          Scanner scanner = null;
          try {
                scanner = new Scanner(f);
          } catch (FileNotFoundException fnf) {
                System.out.println(fnf.getMessage());
                System.exit(0);
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          int y=0;
          while (scanner.hasNext()) {
            String line = scanner.next().trim();
            System.out.println(line);
            String bits[]= new String[19];
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            for(int j=0;j<=(bit.length-1);j++){
                    String[] bis = bit[j].split(":");
                    System.out.println(bis[0]);
                    String t=bis[1].trim();
                    bits[j]=t;
                    System.out.println(bits[j]);
                    System.out.println(j);
            String t = bits[0];                        // title
            String imgFileName = bits[1];          // image file name
            float h = Float.parseFloat(bits[2]);    // height
            String w = bits[3];    // weight
            String l = bits[4];    // length
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h_koineni wrote:
sorry
iam getting the error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at Driver.main(Driver.java:38)So meaning this line cause the exception:
String t=bis[1].trim(); // hard-coded int literal 1That happens because, in line 36,
String[] bis = bit[j].split(":");What will happen if the delimiter ':' is not found? It will return an array with a size of 1, and at this time referencing index 1 is out of bound, remember that the upper bound of an array is its size-1. One workaround is to put a selection structure after line 36.
if (bis != null && bis.length == 2) {
    String t=bis[1].trim();
    bits[j]=t;
}Then, recompile your code and try again.

Exception in thread "main" java.lang.NumberFormatException:For input String

this is a code about arrylist. but when I debug it.it metion:Exception in thread "main" java.lang.NumberFormatException:For input String at java.lang.NumberFormatException.forInputString(numberFomatExceptionio java:48)
at java.lang.Integer.parseInt(integer.java:468)
at java.lang.Integer.parseInt(integer.java:497)
at Get.getInt(manerger.java:208)
at LinkList.insertFirst(manager.java:94)
at manager.main(manager.java;20)
this is my code:
import java.io.*;
import java.lang.*;
public class manager
     public static void main(String args[]) throws IOException
     LinkList list=new LinkList();
     System.out.println("input S can scan the grade\ninput D can delete one entry\ninput U can update the entry\ninput A can add one entry\ninput E can end");
     int cr=System.in.read();
switch(cr)
     case 'A':
     list.insertFirst();break;//this is 20 row
     case 'S':
     System.out.println("input the s");break;
     case 'D':
     System.out.println("input the d");break;
     case 'U':
     System.out.println("input the u");break;
class Link
public int number;
public String name=new String();
public int chs;
public int eng;
public int math;
public Link next;
public Link(int number,String name, int chs,int eng,int math)
this.number=number;
this.name=name;
this.chs=chs;
this.eng=eng;
this.math=math;
public Link()
     this(0,"",0,0,0);
public void displayLink()
System.out.println(number + " "+name+ " "+chs+ " "+eng+ " "+math+ " ");
class LinkList
public Link first;
public LinkList()
first = null;
public boolean isEmpty()
return first==null;
public void displayList()
     System.out.println("");
     Link current=first;
     while(current!=null)
          current.displayLink();
          current=current.next;
     System.out.println("");
public Link insertFirst() throws IOException
     Get getdata=new Get();
     int number=getdata.getInt();//this is 94 row
     String name=getdata.getString();
     int chs=getdata.getInt();
     int eng=getdata.getInt();
     int math=getdata.getInt();
     Link newLink = new Link(number,name,chs,eng,math);
     first=newLink;
     return first;
public Link find(int key)
     Link current=first;
     while(current.number!=key)
          if(current.next==null)
          return null;
          else
          current=current.next;
     return current;
public Link update(int key) throws IOException
     Link current=first;
     while(current.number!=key)
     if(current.next==null)
     return null;
     else
          System.out.println("Input the first letter of the subject:");
     int c=System.in.read();
     Get get=new Get();
          switch(c)
               case 'c':
               current.chs=get.getInt();break;
               case 'e':
               current.eng=get.getInt();break;
               case 'm':
               current.math=get.getInt();break;
     return current;
public float average(char key)
     Link current=first;
     float total=0;
     float average=0;
     float counter=0;
     if(current==null)
     return 0;
     while(current!=null)
          switch(key)
               case 'c':
               total=current.chs+current.next.chs;break;
               case 'e':
               total=current.eng+current.next.eng;break;
               case 'm':
               total=current.math+current.next.math;break;
          current=current.next.next;
          counter++;
     average=total/counter;
     return average;
public Link delete(int key)
     Link current=first;
     Link previous=first;
     while(current.number!=key)
          if(current.next==null)
          return null;
          else
               previous=current;
               current=current.next;
          if(current==first)
          first=first.next;
          else
          previous.next=current.next;
          return current;
class Get
public static String getString() throws IOException
System.out.println("Input your name:");
InputStreamReader str = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(str);
String s = br.readLine();
return s;
public static int getInt() throws IOException
System.out.println("Input your data:");
String st = getString();
return Integer.parseInt(st);//this is 208 row
}

It may be that the code in getString() returns a
String that ends with a newline. If that is the
problem, you can use
return (Integer.parseInt(st)).trim();1. getString will never return a String ending in newline. BufferedReader.readLine strips off the newline.
2. Even if you had a newline, String.trim doesn't trim newlines.
3. You would need to trim the String, not the int:
return (Integer.parseInt(st.trim()));As JimDinosaur said, you are passing bad data (the value of "st").
In getInt, add this before trying to parse "st":
System.out.println("###"+st+"###");What does it print?

I get the message Exception in thread "main" java.lang.StackOverflowError

I'm trying to make a program for my class and when I run the program I get the error Exception in thread "main" java.lang.StackOverflowError, I have looked up what it means and I don't see where in my program would be giving the error, can someone please help me, here is the program
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
// This visual application allows users to "shop" for items,
// maintaining a "shopping cart" of items purchased so far.
public class ShoppingApp extends JFrame
implements ActionListener {
private JButton addButton, // Add item to cart
removeButton; // Remove item from cart
private JTextArea itemsArea, // Where list of items for sale displayed
cartArea; // Where shopping cart displayed
private JTextField itemField, // Where name of item entered
messageField; // Status messages displayed
private ShoppingCart cart; // Reference to support object representing
// Shopping cart (that is, the business logic)
String itemEntered;
public ShoppingApp() {
// This array of items is used to set up the cart
String[] items = new String[5];
items[0] = "Computer";
items[1] = "Monitor";
items[2] = "Printer";
items[3] = "Scanner";
items[4] = "Camera";
// Construct the shopping cart support object
cart = new ShoppingCart(items);
// Contruct visual components
addButton = new JButton("ADD");
removeButton = new JButton("REMOVE");
itemsArea = new JTextArea(6, 8);
cartArea = new JTextArea(6, 20);
itemField = new JTextField(12);
messageField = new JTextField(20);
// Listen for events on buttons
addButton.addActionListener(this);
removeButton.addActionListener(this);
// The list of items is not editable, and is in light grey (to
// make it distinct from the cart area -- this would be done
// better by using the BorderFactory class).
itemsArea.setEditable(false);
itemsArea.setBackground(Color.lightGray);
cartArea.setEditable(false);
// Write the list of items into the itemsArea
itemsArea.setText("Items for sale:");
for (int i = 0; i < items.length; i++)
itemsArea.append("\n" + items);
// Write the initial state of the cart into the cartArea
cartArea.setText("No items in cart");
// Construct layouts and add components
JPanel mainPanel = new JPanel(new BorderLayout());
getContentPane().add(mainPanel);
JPanel controlPanel = new JPanel(new GridLayout(1, 4));
controlPanel.add(new JLabel("Item: ", JLabel.RIGHT));
controlPanel.add(itemField);
controlPanel.add(addButton);
controlPanel.add(removeButton);
mainPanel.add(controlPanel, "North");
mainPanel.add(itemsArea, "West");
mainPanel.add(cartArea, "Center");
mainPanel.add(messageField, "South");
public void actionPerformed(ActionEvent e)
itemEntered=itemField.getText();
if (addButton==e.getSource())
cart.addComputer();
messageField.setText("Computer added to the shopping cart");
public static void main(String[] args) {
ShoppingApp s = new ShoppingApp();
s.setSize(360, 180);
s.show();
this is a seperate file called ShoppingCart
public class ShoppingCart extends ShoppingApp
private String[] items;
private int[] quantity;
public ShoppingCart (String[] inputitems)
super();
items=inputitems;
quantity=new int[items.length];
public void addComputer()
int x;
for (x=0; "computer".equals(itemEntered); x++)
items[x]="computer";
please somebody help me, this thing is due tomorrow I need help asap!

First, whenever you post, there is a link for Formatting Help. This link takes you to here: http://forum.java.sun.com/features.jsp#Formatting and tells you how to use the code and /code tags so any code you post will be easily readable.
Your problem is this: ShoppingApp has a ShoppingCart and ShoppingCart is a ShoppingApp - that is ShoppingCart extends ShoppintApp. You are saying that ShoppingCart is a ShoppingApp - which probably doesn't make sense. But the problem is a child class always calls one of its parent's constructors. So when you create a ShoppingApp, the ShoppingApp constructor tries to create a ShoppingCart. The ShoppingCart calls its superclass constructor, which tries to create a ShoppingCart, which calls its superclass constructor, which tries to create a ShoppingCart, which...
It seems like ShoppingCart should not extend ShoppingApp.

On starting WebLogic getting Error : Listening for transport dt_socket at address: 8453 Exception in thread "main" java.lang.NoClassDefFoundError: vXmx512m

Hi,
system i am using for Oracle SOA is :
Windows 64 Bit
i5 Processor
6 GB RAM
29 GB on C Drive is already free after installation of all SOA related products.
I have installed wlserver_10.3 for SOA 11g Development purpose and followed exact installation sequence and procedure as mention in oracle documentation
i created domain also and every thing look correct but after installation procedure there are "Additional actions required just after every thing installed" :
setting memory limit
starting weblogic server (Admin Server)
starting weblogic managed server
and so on
now Problem is when i execute C:\Oracle\Middleware\user_projects\domains\soa_div_domain\bin startWebLogic.cmd
as mention in oracle documentation i am getting following error message : (i have only included last error lines instead of complete console log)
oConsole= -Dweblogic.ext.dirs=C:\Oracle\MIDDLE~1\patch_wls1036\profiles\default\
sysext_manifest_classpath;C:\Oracle\MIDDLE~1\patch_oepe180\profiles\default\syse
xt_manifest_classpath;C:\Oracle\MIDDLE~1\patch_ocp371\profiles\default\sysext_ma
nifest_classpath;C:\Oracle\MIDDLE~1\patch_adfr1111\profiles\default\sysext_manif
est_classpath weblogic.Server
Listening for transport dt_socket at address: 8453
Exception in thread "main" java.lang.NoClassDefFoundError: vXmx512m
Caused by: java.lang.ClassNotFoundException: vXmx512m
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: ++Xmx512m. Program will exit.
Now to resolve this what i already tried are :
I change JAVA_HOME and PATH to jdk6 which came with web logic installer
Location is at :
JAVA_HOME : C:\Oracle\Middleware\jdk160_29
PATH : C:\Oracle\Middleware\jdk160_29\bin
The above dose not include any space between path
I ran the startWebLogic.cmd and got same error
After that I also added
CLASSPATH : C:\Oracle\Middleware\jdk160_29\lib\tool.jar;C:\Oracle\Middleware\wlserver_10.3\server\lib\weblogic.jar;C:\Oracle\Middleware\jdk160_29\bin
WL_HOME: C:\Oracle\Middleware\wlserver_10.3
I ran the startWebLogic.cmd and got same error
I also used earlier path which I used with eclipse when I was working on other java development.
JAVA_HOME : C:\Program Files\Java\jdk1.7.0_21
PATH : C:\Program Files\Java\jdk1.7.0_21\bin
I ran the startWebLogic.cmd and got same error
Then I also gave PATH: C:\Oracle\Middleware\wlserver_10.3\server\lib      (including the existing one using ; )
I ran the startWebLogic.cmd and got same error
Now may be there is a file called setSOADomainEnv.cmd in
< C:\Oracle\Middleware\user_projects\domains\soa_div_domain\bin\ setSOADomainEnv.cmd>
That include some values for memory set :
set JAVA_OPTIONS=%JAVA_OPTIONS%
set DEFAULT_MEM_ARGS=-Xms512m –Xmx512m
set PORT_MEM_ARGS=-Xms512m –Xmx768m
if "%JAVA_VENDOR%" == "Oracle" goto OracleJVM
set DEFAULT_MEM_ARGS=%DEFAULT_MEM_ARGS% -XX:PermSize=128m -XX:MaxPermSize=768m
set PORT_MEM_ARGS=%PORT_MEM_ARGS% -XX:PermSize=256m -XX:MaxPermSize=768m
now as I change the red highlighted value to 512 value because I have less memory resource and I checked in installation documentation to change the above red highlighted value to 512 original is 1024 which is too high and it was crating problem and showing memory space problem so I change it to 512 and now I am not getting that memory space problem error but may be the above error is related with change value in setSOADomainEnv.cmd file or not
Following are my domain, weblogic and soa home directory path and all these path are exactly what it suppose to be according to Oracle Installation Documentation:
WebLogic :
C:\Oracle\Middleware\wlserver_10.3
C:\Oracle\Middleware\coherence_3.7
C:\Oracle\Middleware\oepe_11.1.1.8.0
SOA Oracle Home Directory :
C:\Oracle\Middleware\Oracle_SOA1
OSB Home Location :
C:\Oracle\Middleware\Oracle_OSB1
Domain name : soa_div_domain
Domain Location :       C:\Oracle\Middleware\user_projects\domains
Application Location : C:\Oracle\Middleware\user_projects\applications
Domain Location:        C:\Oracle\Middleware\user_projects\domains\soa_div_domain
form here i am trying to start weblogic : C:\Oracle\Middleware\user_projects\domains\soa_div_domain\bin\startWebLogic.cmd
Please tell me any body want more details.
Thanks.

I think you are missing a character '-'
USER_MEM_ARGS="Xms512m -Xmx512m -XX:MaxPermSize=128m"Add this character like follows
"-Xms512m -Xmx512m -XX:MaxPermSize=128m"

Aspectj with JVM is giving Exception in thread "main" java.lang.NoSuchMetho

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