Weird Exception while running Java Program?

[vaibhavaj2]

Hi ,
I am trying to run a java class file . i am getting the following exception :

Exception in thread "main" java.lang.UnsupportedClassVersionError: dummyClass (Unsupported major.minor version 49.0)

at java.lang.ClassLoader.defineClass0(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$100(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)

Can someone please help in this case ?
The JRE version on the box is 1.4
But is guess i will needing 1.5 version .


I am running this as a standalone java program.
Can we specify in command parameter s to refer to JRE Version 1.5 for only this commnad as i dont want to change the JRE Version ?