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major and minor version of java class

chander shivdasani
Ranch Hand

Joined: Oct 09, 2007
Posts: 206

What do we mean when we say Major and Minor version of java. I was browsing through one forum where i came across this term.


Enjoy, Chander
SCJP 5, Oracle Certified PL/SQL Developer
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 40027
    
  28
There aren't minor versions for the most recent versions of Java. The major versions are Java 5 and Java 6. There might be minor versions again in the future.
In older versions, eg 1.4.2, the 1.4 was the major version and the 2 was the minor version.
Joanne Neal
Rancher

Joined: Aug 05, 2005
Posts: 3742
    
  16
The major and minor version numbers of a java class are used to determine whether an implementation of a Java Virtual Machine can support a given class file. See section 4 of the JVM specification for details.


Joanne
 
It is sorta covered in the JavaRanch Style Guide.
 
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