JDK Configuration for Linux

1. Download jdk-7u1-linux-i586.rpm
2, CD to the directory where the jdk-7u1-linux-i586.rpm
3. Su gets root permission
4. Execute the installation command:
RPM-IVH jdk-7u1-linux-i586.rpm
The execution result information is as follows:
Preparing ... ########################################### [100%]
1:JDK ########################################### [100%]
Unpacking JAR files ...
Rt.jar ...
Jsse.jar ...
Charsets.jar ...
Tools.jar ...
Localedata.jar ...
Plugin.jar ...
Javaws.jar ...
Deploy.jar ...
5. Set Environment variables:
Vim/etc/profile
Append the following information to the profile file:
Export java_home=/usr/java/jdk1.7.0_01
Export classpath=.: $JAVA _home/jre/lib/rt.jar: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar
Export path= $PATH: $JAVA _home/bin
(Esc→:wq Enter) Save exit.
6. Execute the command:
Source/etc/profile
7, update alternatives, select the JDK version:
Update-alternatives--install/usr/bin/java Java/usr/java/jdk1.7.0_01/bin/java 60
8. Configure the JDK:
Update-alternatives--config Java
Select the version of just Ann OK
9. Check whether the success:
Java-version
The results of the execution are as follows (Installation succeeded):
Java Version "1.7.0_01"
Java (TM) SE Runtime Environment (build 1.7.0_01-b08)
Java HotSpot (TM) Client VMs (build 21.1-b02, mixed mode, sharing)

JDK Configuration for Linux