fedora alternatives --config java，

fedora alternatives --config java，

first type alternatives --config java

alternatives --install /usr/bin/java  java /usr/java/jdk1.6.0_26/jre/bin/java 3

alternatives --install /usr/bin/javac  javac /usr/java/jdk1.6.0_26/bin/javac 3

alternatives --config java

There are 2 programs which provide 'java'.


  Selection    Command
-----------------------------------------------
*+ 1           /usr/lib/jvm/jre-1.7.0-openjdk/bin/java
   2           /usr/java/jdk1.6.0_26/jre/bin/java


Enter to keep the current selection[+], or type selection number: 2
[root@iQuny bin]# alternatives --config javac


There are 2 programs which provide 'javac'.


  Selection    Command
-----------------------------------------------
*+ 1           /usr/lib/jvm/java-1.7.0-openjdk/bin/javac
   2           /usr/java/jdk1.6.0_26/bin/javac

Enter to keep the current selection[+], or type selection number: 2

[root@iQuny bin]# java -version
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) Server VM (build 20.1-b02, mixed mode)

got it!