Summary of JDK installation in Ubuntu

Summary of JDK installation in Ubuntu

Install JDK in Ubuntu using jdk-6u45-linux-x64.bin as an Example

1. Download JDK. I use a jdk-6u45-linux-x64.bin.

2. Place the downloaded jdk-6u45-linux-x64.bin to your designated location, such as/usr/Java/JDK

3. $ Sudo-S./jdk-6u45-linux-x64.bin one way press enter until installation is complete

4. $ sudo gedit/etc/profile

Add

# Set Java environment

Java_home =/usr/Java/JDK/jdk1.6.0 _ 45

Export jre_home =/usr/Java/JDK/jdk1.6.0 _ 45/JRE

Export classpath =.: $ java_home/lib: $ jre_home/lib: $ classpath

Export Path = $ java_home/bin: $ jre_home/bin: $ path

5. restart the computer to test the JDK version. The Java-version displays the installed version number, indicating that the installation is successful.

 

[Supplement 1]

I. The following are environment variables for Linux configuration.

1. Modify the/etc/profile file (Global Users)
VI this file/etc/profile
Add the following content to the end of the profile file:
Export java_home =/usr/share/jdk1.6.0 _ 20
Export Path = $ java_home/bin: $ path
Export classpath =.: $ java_home/lib/dt. jar: $ java_home/lib/tools. Jar

2. Modify the. bash_profile file (a user can use these environment variables)
Add the following content to the end of the. bash_profile file:

Export java_home =/usr/share/jdk1.6.0 _ 20
Export Path = $ java_home/bin: $ path
Export classpath =.: $ java_home/lib/dt. jar: $ java_home/lib/tools. Jar

3. Run the following command on the shell terminal: (for temporary use)
Export java_home =/usr/share/jdk1.6.0 _ 14
Export Path = $ java_home/bin: $ path
Export classpath =.: $ java_home/lib/dt. jar: $ java_home/lib/tools. Jar

Ii. Uninstall JDK
· Find the _ uninst subdirectory of the JDK installation directory.
· Run the command./uninstall. Sh on the shell terminal to uninstall JDK.