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Error While running Java Program

Ratheesh Narayanan
Ranch Hand

Joined: Oct 30, 2004
Posts: 38
Hi,

Can anyone help me? I have an exception message when i execute a simple java program to display hello world in command prompt. I am using java 1.5.0_05 currently for the execution. Let me put the exeception message below:
----------------------------------------------------------------------------
E:\>java Hello
Exception in thread "main" java.lang.UnsupportedClassVersionError:
r.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Sour
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Metho
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Sourc
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
----------------------------------------------------------------------------
Here is the code:
public class Hello
{
public static void main(String s[])
{
System.out.println("Hello World");
}
}

Thanks in Advance,
With regards,
Ratheesh Narayanan
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14428
    
  23

That error message means that you have a class that you compiled with Java 5.0, and you are trying to run it with an older Java version.

Make sure you uninstall the older Java version, or make sure you are running it with Java 5.0.


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Bill Johnston
Ranch Hand

Joined: Nov 17, 2005
Posts: 201
At your command prompt, key in:

E> java -version

... What do you get?


~Bill
 
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