Remove the JDK that comes with the CentOS system

When installing CentOS6.4, the system automatically installs the JDK, downloads it, and installs the custom JDK.

The uninstallation steps are as follows:

[Email protected] ~]# Rpm-qa|grep jdkjava-1.6.0-openjdk-1.6.0.0-1.50.1.11.5.el6_3.x86_ 64java-1.7.0-openjdk-1.7.0.9-2.3.4.1.el6_3.x86_64[[email protected] ~]# Rpm-qa|grep gcjjava-1.4.2-gcj-compat-1.4.2.0-40jpp.115  libgcj-4.1.2-48.el5  [[email protected] ~]# yum-y remove Java Java-1.6.0-openjdk-1.6.0.0-1.50.1.11.5.el6_3.x86_64[[email protected] ~]# yum-y remove Java Java-1.7.0-openjdk-1.7.0.9-2.3.4.1.el6_3.x86_64[[email protected] ~]# yum-y remove Java java-1.4.2-gcj-compat-1.4.2.0-40jpp.115  [[email protected] ~]# yum-y Remove Libgcj-4.1.2-48.el5  

Remove the JDK that comes with the CentOS system