i m getting error in tomcat server

[ERROR] HostConfig - Error deploying web application directory Flat1 <java.lang.
UnsupportedClassVersionError: Flat/action/FlatApplicationContext (Unsupported ma
jor.minor version 48.0)>java.lang.UnsupportedClassVersionError: Flat/action/Flat
ApplicationContext (Unsupported major.minor version 48.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp
ClassLoader.java:1634)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa
der.java:860)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa
der.java:1307)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa
der.java:1189)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
java:978)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:87
6)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContex
t.java:4017)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
337)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:823)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80
7)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)

java.lang.UnsupportedClassVersionError: is because of the version mismatch of JDKs used for compilation and running. You must have used a higher version (example 1.5) of JDK for compilation and the JRE would be of lesser version (example 1.4).

You may have a look at the very recent thread here

Originally posted by Raghavan Muthu:
java.lang.UnsupportedClassVersionError: is because of the version mismatch of JDKs used for compilation and running. You must have used a higher version (example 1.5) of JDK for compilation and the JRE would be of lesser version (example 1.4).

You may have a look at the very recent thread here

Ok , Thanks for replying

Originally posted by ch padmavathi:
Ok , Thanks for replying

You are welcome

I find you doing so many cross posts. As a newbie you might abide the javaranch policy. So in future just spend a little more time in choosing the right forum to post your question instead of doing like this.Then give us some content like "When i try to compile this file.i got an error like this....etc..etc..". This would make ranchers to understand what you tried until now and what is your problem. Simply pasting the error will not help you and make ranchers frustrating....