Exception in thread "main"

[tiyaramunna]

I am trying to configure my system with Java program just to practice on the coding....when i compile a test.java program i am able to see the class file but i cant run the program ... I am getting the following error
Exception in thread "main" java.lang.NoCla ssDefFoundError : test
Caused by: java.lang.Class NotFoundExcepti on: test
at java.net.URLCla ssLoader$1.run( Unknown Source)
at java.security.A ccessController .doPrivileged(N ative Method)
at java.net.URLCla ssLoader.findCl ass(Unknown Source)
at java.lang.Class Loader.loadClas s(Unknown Source)
at sun.misc.Launch er$AppClassLoad er.loadClass(Un known Source)
at java.lang.Class Loader.loadClas s(Unknown Source)
at java.lang.Class Loader.loadClas sInternal(Unkno wn Source)
i know the path is not set right could anyone please help me with setting the path right...java resides in c drive as well as inside the program files which folder should i refer to while setting the path :(

[r035198x]

Where (which folder) is test.class and from where are you running the java test command?

[RamananKalirajan]

This may be a solution for your problem. Copy the path of the JDk upto bin
ex: c:\program files\jdk1.5\bi n. Go to the control panel in that systems. In Systems click Advanced Tab. In that Environment Variables. There u can see to large boxes 1 for your variables and the other for the system variables.

Click new in the top one
It will ask for Variable Name and Variable path.

In Variable Name enter the column as "path"(with out quotes)
then in variable path paste the Jdk path you copied & append a semicolon to it(";").
press ok. After that open ur command prompt. Enter echo %path% run this command. Your java path will be set the environment so that u need not to set path every time while u run the java program you can run the program any were.

Regards
Ramanan Kalirajan

[r035198x]

This may be a solution for your problem. Copy the path of the JDk upto bin
ex: c:\program files\jdk1.5\bi n. Go to the control panel in that systems. In Systems click Advanced Tab. In that Environment Variables. There u can see to large boxes 1 for your variables and the other for the system variables.

Click new in the top one
It will ask for Variable Name and Variable path.

In Variable Name enter the column as "path"(with out quotes)
then in variable path paste the Jdk path you copied & append a semicolon to it(";").
press ok. After that open ur command prompt. Enter echo %path% run this command. Your java path will be set the environment so that u need not to set path every time while u run the java program you can run the program any were.

Regards
Ramanan Kalirajan

The problem is not with the path, it's with the classpath. Java path != classpath.

[RamananKalirajan]

The problem is not with the path, it's with the classpath. Java path != classpath.

see if you set the path like that and work. It will automatically take care of the class path also. Just try it out. You dont need to give or set path again and again when u run the program.

Regards
Ramanan Kalirajan

[r035198x]

see if you set the path like that and work. It will automatically take care of the class path also. Just try it out. You dont need to give or set path again and again when u run the program.

Regards
Ramanan Kalirajan

Setting the path does not automatically set the classpath. The path is the location of the java tools. The classpath is the location of classes required to run another class. If the path is not set you will get a command not found system message when trying to compile the .java.

[JosAH]

see if you set the path like that and work. It will automatically take care of the class path also. Just try it out. You dont need to give or set path again and again when u run the program.

Please don't confuse the OP. The path variable is used by the OS: it searches
the directories in the path variable for executable files such as java.exe and
javac.exe.

The classpath variable is purely a Java thing: it contains a list of directories
and/or jar files that are searched by the class loaders when they need to load a
class.

kind regards,

Jos

[tiyaramunna]

Where (which folder) is test.class and from where are you running the java test command?

i run the programs from the command prompt...and my test.class file is in d:\java folder

[JosAH]

Read the top article of this forum; it's named "Read This First" and follow the
link that tells you all about the classpath.

kind regards,

Jos

[tiyaramunna]

Read the top article of this forum; it's named "Read This First" and follow the
link that tells you all about the classpath.

kind regards,

Jos

thank you ...appreciate all the help given.....the programs are running fine now great appreciate all the assistance.

Regards
Tiyara