Configure jdk1.6 + eclipse in the UbuntuLinux System

Article Title: Configure jdk1.6 + eclipse in the UbuntuLinux system. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic categories of jre Installation
　
Open terminal Input
　
Sudo apt-get install sun-java6-jre
　
During the installation process, you need to answer whether you agree to use the agreement. There is no other choice!
　
Use java-version to view the jre version:
　
Java version "1.6.0 _ 03"
　
Java (TM) SE Runtime Environment (build 1.6.0 _ 03-b05)
　
Java HotSpot (TM) Client VM (build 1.6.0 _ 03-b05, mixed mode, sharing)
　
It indicates that you have installed jre1.6 successfully.
　
If the version is still the old version, use the following command to set the installed jre version as the default java interpreter.
　
Sudo update-alternatives -- config java
　
The following content will appear after execution:
　
There are two options available, both of which provide "java" <
　
Select option
　
1/usr/bin/gij-4.2
　
* + 2/usr/lib/jvm/java-6-sun/jre/bin/java
　
To maintain the default value *], press the Enter key or enter the selected number:
　
Press enter to keep the default *], or type selection number:
　
Select the number of the jre version you want to use. Enter 2 and set jre1.6 as the default interpreter.
　
Install jdk
　
Sudo apt-get install sun-java6-jdk
　
The jre installation must also accept the Protocol during installation.
　
Environment variables are configured after installation.
　
Sudo gedit/etc/environment
　
Add the following two lines:
　
CLASSPATH =.:/usr/lib/jvm/java-6-sun/lib
　
JAVA_HOME =/usr/lib/jvm/java-6-sun
　
Sudo gedit/etc/jvm
　
Convert
　
/Usr/lib/jvm/java-6-sun
　
Enter this line at the top of the configuration block.
　
Install the browser's JAVA Plugin
　
Sudo apt-get install sun-java6-plugin
　
You don't need to install eclipse. Simply decompress it and you will be OK!
　
If the network speed is fast, it will take 5 minutes to install it!