java run time problem?

**kcs403** · July 14th, 2011, 02:57 PM

class a
{
public static void main(String args[])
{
System.out.println("hello");
}
}

am running , de above program.
but after complilation ,
if i give "java a " the o/p wont appear.

i have tried reinstallation and all.

the same error occurs,

java.lang.unsupportedclassversionerror a <unsupported major.minor error 50.0>

jerr.JPG

pls help me...

how to resolve dis....

**Norm** · July 14th, 2011, 03:17 PM

What version of java are you trying to execute the class file with?
Is it the same or a younger version than the javac command used to compile it?

**kcs403** · July 14th, 2011, 04:27 PM

Originally Posted by Norm

What version of java are you trying to execute the class file with?
Is it the same or a younger version than the javac command used to compile it?

javac 1.6.0_26

java 1.3.1_01

am using dese versions.

**Norm** · July 14th, 2011, 04:32 PM

java 1.3 can NOT execute class files from javac 1.6
You need to use the java version the same as or later than the javac.
On windows there is a jre folder in the SDK folders with a java command.

**copeg** · July 14th, 2011, 06:26 PM

Look at the command line options for javac, in particular the target option. This will allow you to compile and run on earlier version - provided of course the code does not use classes or libraries which require a later version than the target

**Junky** · July 14th, 2011, 06:30 PM

Originally Posted by Norm

You need to use the java version the same as or later than the javac.

Just a slight modification.

**kcs403** · July 15th, 2011, 09:06 AM

thanks for dose who replied for me.

i cant get java version 1.6,but i had installed older version of javac. this may work somewhat.

Thread: java run time problem?

LinkBack

Thread Tools

Display

java run time problem?

Related threads:

Re: java run time problem?

Re: java run time problem?

Re: java run time problem?

Re: java run time problem?

Re: java run time problem?

Re: java run time problem?

Similar Threads

[SOLVED] Java run time error: 'java.lang.NullPointerException"

[SOLVED] Experiencing a run time error, don't know what the problem is

Java Programming Help - thanks ahead of time

java threading execution time question

Problem in rotating and moving image at the same time

Tags for this Thread