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Tech-Recipes
Cookbook of Tech TutorialsJava: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes
Started by qdideas · 9 months ago
8 months ago
8 months ago
.;C:\Program Files\Java\jdk1.6.0_01\lib
7 months ago
8 months ago
6 months ago
set path=.....
and for classes
set classpath=....
4 months ago
i just copied my files in bin dir. try doing this.
4 months ago
8 months ago
8 months ago
java -classpath . XYZ
7 months ago
didn't work for me ...
any idea ?? :'(
wassalam
7 months ago
7 months ago
5 months ago
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\mdube>cd\
C:\>javac C:\abhishek\Mohit.java
C:\>java C:\abhishek\mohit
Exception in thread "main" java.lang.NoClassDefFoundError: C:\abhishek\mohit
C:\>java C:\abhishek/mohit
Exception in thread "main" java.lang.NoClassDefFoundError: C:\abhishek/mohit
C:\>javac C:\abhishek/Mohit.java
C:\>$Recycle.Bin
'$Recycle.Bin' is not recognized as an internal or external command,
operable program or batch file.
C:\>JAVAC
Usage: javac <options> <source files>
where possible options include:
-g Generate all debugging info
-g:none Generate no debugging info
-g:{lines,vars,source} Generate only some debugging info
-nowarn Generate no warnings
-verbose Output messages about what the compiler is doing
-deprecation Output source locations where deprecated APIs are us
ed
-classpath <path> Specify where to find user class files
-sourcepath <path> Specify where to find input source files
-bootclasspath <path> Override location of bootstrap class files
-extdirs <dirs> Override location of installed extensions
-d <directory> Specify where to place generated class files
-encoding <encoding> Specify character encoding used by source files
-source <release> Provide source compatibility with specified release
-target <release> Generate class files for specific VM version
-help Print a synopsis of standard options
C:\>JAAVA
7 months ago
6 months ago
But some of the best environment to program java in would have to be Eclipse or NetBeans.
They have an awful lot of features, and is very easy to use when you get over the initial general troubles, such as which features to use, and getting an overview of all the stuff they can do.
4 months ago
7 months ago
.;C:\Program Files\Java\jdk1.5.0_01\lib
6 months ago
6 months ago
1. for JDK use following command
set path=C:\......
2. for classes where u compiled and kept
set classpath=D:\prgrams......
6 months ago
6 months ago
Exception in thread "main" java.lang.UnsupportOperationException at sun.jdbc.odbc.jdbcOdbcConnection.createStatement(Unknown Source)
at DBConn.<init><DBConn.java,Compiled Code>
at ReceiveMail.<init><Receivemail.java,Compiled Code>
at insertion.main(insertion.java:10)
6 months ago
C:\Program Files\Java\jdk1.6.0_10\jre\lib;C:\Program Files\Java\jdk1.6.0_10\jre\bin;C:\novell\ndk\ndssdk\java\lib\ldap.jar;.;C:\JavaProjects\SearchLDAPTest
Where C:\JavaProjects\SearchLDAPTest is where my List.class compiled class resides
I also created JAVA_HOME Variable for my user with a value of:
C:\Program Files\Java\jdk1.6.0_10\
and finally I have for my Path:
C:\Program Files\Java\jdk1.6.0_10\jre\bin;D:\Program Files\SSH Communications Security\SSH Secure Shell;C:\Program Files\Java\jdk1.6.0_10\bin\javac.exe;C:\novell\ndk\njclv2r\src\njcl
Which C:\Program Files\Java\jdk1.6.0_10\jre\bin is the bin of the RUNTIME or should I also list C:\Program Files\Java\jdk1.6.0_10\bin :: the JDK bin/ instead ?
anyone with any CLEAR ideas ? thx
5 months ago
My program is compiling but when i run it gives me an error
java.lang.NoClassDefFoundError:
Exception in thread "main"
Tool completed with exit code 1
I have set my path to C:\jdk1.3\bin
and the classpath to where the program reside but in vein can anybody help
5 months ago
it keeps saying that java.lang.noclassdeffounderror thing...
5 months ago
i run small prgm, my error is
exception in thread "main" java.lang.noclassdefFoundError
how do clear my error
5 months ago
When I copied the .java file to my hard drive the problem went away
5 months ago
5 months ago
i o u big!!!
ty for suggesting at putting that in the Class path file, a program of mine has been corrupted for over 2 yrs, and i tried to fix it 1 last time, and ur suggestion worked!!
ty!!
4 months ago
4 months ago
The .Java and the .Class file is located in C:\Java . i got the above error and changed directory at the dos prompt by typing
cd Java (Enter)
Then I compiled by typing the below
C:\Java>"C:\Program Files\Java\jdk1.5.0_16\bin\javac.exe" C:\java\saluton.java
Than I run by typing the below
C:\Java>java Saluton
Results ...
Saluton Mundo!
Hope this Helps . Arichards
4 months ago
4 months ago
java -classpath . m
i get this........
Unrecognized option: -classpath.m
Could not create the Java virtual machine.
help is appreciated!!!1
3 months ago
like java -classpath[space].[space]m
mine was also having the same error but when i gave spacing between them it worked,,..so u can also try dis once...
3 months ago
3 days ago
4 months ago
2 months ago
4 months ago
3 months ago
4 months ago
too , i have error :
Exception in thread "main" java.lang.NoClassDefFoundError: nameclass
help me.
3 months ago
I got this error when i made the mistake of running the class file. Make sure you are running the job correctly (fyi, I'm running vista):
Correct: C:\Users\Crimson\teaching> java Example
Incorrect: C:\Users\Crimson\teaching> java Example.class
This is really easy to forget about, especially if you're used to using an IDE like Eclipse, which was the case for me. I scratched my head for a little while and feel really dumb now.
3 months ago
3 months ago
for me i didnt put a space after java and a space either side of the full stop. and i forgot to write my class with an upper case letter which is how it was saved.
java(space) -classpath(space) . (space)Welcome1
3 months ago
Caused by: java.lang.ClassNotFoundException: Receiver.class
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: Receiver.class. Program will exit.
where Receiver is my class..code is getting compiled perfectly but when i run its givin the above error..
1 month ago
First set the JAVA_HOME variable with your bin directory.
then try to run .it will help u.
Regards
Ram Yadav
3 months ago
error is java.lang.NoClassDefFoundError: and im using jdk 1.6 version .
someone helpout this
2 months ago
2 months ago
It worked great
1 month ago
anyone help?
1 month ago
1 month ago
1 month ago
I just followed every suggestion in this string and no dice...
FINALLY I GOT IT ----> (on Windows XP) MAKE SURE YOU COMPILE YOUR PROGRAM WITH C:\...javac ClassName.java before you try to execute with C:\...java ClassName
You will know your program is compiled when you find a ClassName.class file in the same folder as your original ClassName.java program.
Hope this helps the last desperate few.
And yes, of course, make sure your path and classpath are correctly configured.
1 month ago
1 month ago
java HelloWorld.class
java is expecting a class so the .class suffix is not necessary
of course your class path might be wrong also ;-)
2 weeks ago
2 weeks ago
If you are also dependent on a jar file in the same folder you may need to have something like
java -classpath .;./dependent.jar helloworld
2 days ago
i am so glad that my problem has been solved...