java.lang.NoClassDefFoundError

[Lavey]

Hi guys.. really new to java.. just working thru a 'sams' book. but got the following error.. have set the path and classpath correctly.. but the book does not help any further....

any ideas on resolution much appreciated ....


Exception in thread "main" java.lang.NoClassDefFoundError: saluton (wrong name:
Saluton)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12
3)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:250)
at java.net.URLClassLoader.access$100(URLClassLoader.java:54)
at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
____________________________________
Eat , Sleep , Live

 

[shagymoe]

Make sure you are typing the command like:

java program_name

and NOT like:

java program_name.class

This may fix your error.

 

[Lavey]

I can compile ok... so that tells me my systeme variables are ok.. (I guess)...

full paste as follows:

C:\CHRIS\TEST>javac root.java

C:\CHRIS\TEST>java root
Exception in thread "main" java.lang.NoClassDefFoundError: root (wrong name: Roo
t)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12
3)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:250)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:54)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)

C:\CHRIS\TEST>

____________________________________
Eat , Sleep , Live

 

[Lavey]

ok ok... scratch this.. is sorted...

my class is named Root.class
I'm trying to call root.class...

/me feels a chump now.. didnt realize java was super case sensitive... noobs.. lol.. live and learn.. ____________________________________
Eat , Sleep , Live