resolutions for java version different from javac on centos 6.3

sudo java --verison

java version "1.6.0_24"

sudo javac --version //javac 1.7
javac 1.7.0_07


To install/ register a JVM use the following

1  /usr/sbin/alternatives --install "/usr/bin/java" "java" "/usr/java/default/bin/java" 2
2  /usr/sbin/alternatives --install "/usr/bin/javac" "javac" "/usr/java/default/bin/javac" 2

And to configure systemwide changes use
3  /usr/sbin/alternatives --configure java 
  or 
  /usr/sbin/alternatives --config java
4 /usr/sbin/alternatives --configure javac
  or 
  /usr/sbin/alternatives --config javac




sudo java --verison


java version "1.7.0_07"


sudo javac --version //javac 1.7
javac 1.7.0_07