Ubuntu Installation Jdk/eclipse

1. Download JDK

Download JDK8 from official website

Jdk-8u5-linux-x64.tar.gz

2. Decompression
$ TAR-ZXVF jdk-8u5-linux-x64.tar.gz
Extract it Out is a jdk1.8.0_05 folder
3. Move the folder to the installation directory
$ sudo mv jdk1.8.0_05/usr/local/

4. Configure environment variables, change/etc/profile file

sudo gedit/etc/profile

Add the following lines at the end of the file:

Export java_home=/usr/local/jdk1.8.0_05
Export path= $JAVA _home/bin: $JAVA _home/jre/bin: $PATH
Export classpath= $CLASSPATH:.: $JAVA _home/lib: $JAVA _home/jre/lib

5. Change the default configuration option and execute the following command sequentially

sudo update-alternatives--install/usr/bin/java Java/usr/local/jdk1.8.0_05/bin/java 300
sudo update-alternatives--install/usr/bin/javac Javac/usr/local/jdk1.8.0_05/bin/javac 300
sudo update-alternatives--install/usr/bin/jar Jar/usr/local/jdk1.8.0_05/bin/jar 300
sudo update-alternatives--install/usr/bin/javah javah/usr/local/jdk1.8.0_05/bin/javah 300
sudo update-alternatives--install/usr/bin/javap JAVAP/USR/LOCAL/JDK1.8.0_05/BIN/JAVAP 300

Install Eclipse

Environment:
Ubuntu 14.04

Steps:

1, install the configuration jdk, see http://my.oschina.net/u/1407116/blog/227084

2. Download Eclipse

Download the Linux version of Eclipse IDE for Java EE developers from official website http://www.eclipse.org/downloads/

Eclipse-sdk-3.7.2-linux-gtk.tar.gz

3. Decompression
$ TAR-ZXVF eclipse-sdk-3.7.2-linux-gtk.tar.gz
Extract it Out is an Eclipse folder
4. Move the folder to the installation directory
$ sudo mv eclipse/usr/local/
5. Start Eclipse
$/usr/local/eclipse/eclipse
6. Create a desktop link
$ sudo su
# Gedit/usr/share/applications/eclipse.desktop
Write the following content
[Desktop Entry]
Name=eclipse
Comment=eclipse SDK
Encoding=utf-8
Exec=/usr/local/eclipse/eclipse
icon=/usr/local/eclipse/icon.xpm
Terminal=false
Type=application
Categories=application;development;
You can see the Eclipse icon under application-programming when you're done.

Ubuntu Installation Jdk/eclipse