Can't run my java program through cmd prompt

[castiel]

hey, i've seen this error on quite a few forums but I still can't seem to fix it.

I've changed the PATH environment variable and it's compiling fine with javac.
i've set the class path like this: set CLASSPATH=.;C:\Program Files\Java\jdk1.5.0_15\lib
and done echo %classpath% to verify that it was set.

I've gone to the directory where the class files are located and after compiling successfully with
javac, i try running the code and no matter what, i get that error!!! Can someone please tell me what i'm doing
wrong and how i can fix this. Like i've even gone

java -classpath . ReadStandardInput

and it still hasn't worked, i still get same error, oh btw ReadStandardInput is just the name of my java file.

This is the full error message from command prompt:


C:\olddata\Documents and Settings\Chad\Chad\Uni Semester 2 2009\COMS3200\Data2\s
rc\General>java -classpath . ReadStandardInput
Exception in thread "main" java.lang.NoClassDefFoundError: ReadStandardInput (wr
ong name: General/ReadStandardInput)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknow n Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: ReadStandardInput. Program will exit.

C:\olddata\Documents and Settings\Chad\Chad\Uni Semester 2 2009\COMS3200\Data2\s
rc\General>



I'd really appreciated if someone could help me fix this cos i really don't know what to do now.

Thanx,

Epically frustrated guy, cry++;

[Eranga]

First of all, you've to check that class-path setup is correct. There is an easy way to do this, open the command prompt and type the command javac and hit enter. If you get a list of some options and explanations, congratz you've setup the class-path correctly.

More looking at your error it's something wrong with your Java code. Can you show your code? This error can cause lots of things.

[Fubarable]

cross-posted at forums.sun.com

[Eranga]

cross-posted at forums.sun.com

Oh no, wasting my time lol.

[zande]

change your dirctry to the dirctory wher ur compiled java program is risiding
using
simple command promput command CD path
example if u stored ur java file in C:\test\helloworld.java then when u compile java stores the compiled file in the same dirctry then to run
chnage the dirctry using cd c:\test then type
at
c:\test type java your java file hit return it should run
otherwise check your class name
good luck
check your class name and

hey, i've seen this error on quite a few forums but I still can't seem to fix it.

I've changed the PATH environment variable and it's compiling fine with javac.
i've set the class path like this: set CLASSPATH=.;C:\Program Files\Java\jdk1.5.0_15\lib
and done echo %classpath% to verify that it was set.

I've gone to the directory where the class files are located and after compiling successfully with
javac, i try running the code and no matter what, i get that error!!! Can someone please tell me what i'm doing
wrong and how i can fix this. Like i've even gone

java -classpath . ReadStandardInput

and it still hasn't worked, i still get same error, oh btw ReadStandardInput is just the name of my java file.

This is the full error message from command prompt:


C:\olddata\Documents and Settings\Chad\Chad\Uni Semester 2 2009\COMS3200\Data2\s
rc\General>java -classpath . ReadStandardInput
Exception in thread "main" java.lang.NoClassDefFoundError: ReadStandardInput (wr
ong name: General/ReadStandardInput)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknow n Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: ReadStandardInput. Program will exit.

C:\olddata\Documents and Settings\Chad\Chad\Uni Semester 2 2009\COMS3200\Data2\s
rc\General>



I'd really appreciated if someone could help me fix this cos i really don't know what to do now.

Thanx,

Epically frustrated guy, cry++;

[JosAH]

For Pete's sake, this thread is almost four years old; I'm closing it.

Jos