File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
The moose likes Beginning Java and the fly likes Problem with the installation. Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "Problem with the installation." Watch "Problem with the installation." New topic
Author

Problem with the installation.

deepa philu
Greenhorn

Joined: Dec 13, 2007
Posts: 3
Hi All,

I could install Java on my machine. The moment I try to compile and run a program I face a proeblem. The program gets complied and a (.class) file is being craeted propely. But when I try to run it, I face the following problem.

C:\Documents and Settings\Deepa_Philu>d:

D:\>cd deepa

D:\Deepa>de javatest
'de' is not recognized as an internal or external command,
operable program or batch file.

D:\Deepa>cd javatest

D:\Deepa\JAVATEST>javac test.java

D:\Deepa\JAVATEST>java test
Exception in thread "main" java.lang.UnsupportedClassVersionError: test (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(Unknown 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 anyone please help me out with this?
I would be greatful.

Thanks and Regards,
Deepa.

Have a nice day.
saurav sarkar
Ranch Hand

Joined: Jan 07, 2007
Posts: 180

This error comes when there is a difference between compiler compliance level and JRE level.
i.e. if you have compiled the code with JDK1.5 and you are trying to execute your class in the JRE 1.4.Check your path and classpath settings.


Be Objectively Oriented.Explore the power of OOPs.
My Blog, Eclipse EMF Query committer.
deepa philu
Greenhorn

Joined: Dec 13, 2007
Posts: 3
Thankx a lot. It did work.

Thanku so much.
saurav sarkar
Ranch Hand

Joined: Jan 07, 2007
Posts: 180

no problem
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Problem with the installation.
 
Similar Threads
Exception in thread "main"
UnsupportedClassVersionError (unsupported major.minor version 50.0)
problem on extending a class declared on the same package!!
Loading and instantiating a remote class?
Ant unable to find javac compiler (in Eclipse)