Configure the MyEclipse environment in Ubuntu

Jdkhttp: // response

Jdk http://download.Oracle.com/otn-pub/java/jdk/7/jdk-7-linux-i586.tar.gz.

I installed jdk in/opt/java, so the following code is executed in the Terminal window:

Sudo mkdir/opt/java

Sudo tarzxvf jdk-7-linux-i586.tar.gz-C/opt/java

1. Open/etc/environment in the editor.

Gedit/etc/environment

2. Modify the file

PATH = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games: usr/games: $ {JAVA_HOME}/bin"

JAVA_HOME =/opt/java/jdk1.7.0

JRE_HOME =$ {JAVA_HOME}/jre

CLASSPATH =. :$ {JAVA_HOME}/lib: $ {JRE_HOME}/lib"

3. Open the bashrc File

Sudo gedit ~ /. Bashrc

4. Add the following code:

Export JAVA_HOME =/opt/java/jdk1.7.0

Export JRE_HOME =$ {JAVA_HOME}/jre

Export CLASSPATH =. :$ {JAVA_HOME}/lib :$ {JRE_HOME}/lib

Export PATH =$ {JAVA_HOME}/bin: $ PATH

5. Reload bashrc

Source ~ /. Bashrc

6. Configure the default JDK version: Ubuntu may have a default JDK, such as openjdk. To set the JDK we installed as the default JDK version, perform the following Configuration:

Sudo update-alternatives -- install/usr/bin/java/opt/java/jdk1.7.0/bin/java 300

Sudo update-alternatives -- install/usr/bin/javac/opt/java/jdk1.7.0/bin/javac 300

Sudo update-alternatives -- install/usr/bin/jar/opt/java/jdk1.7.0/bin/jar 300

Sudo update-alternatives -- install/usr/bin/javah/opt/java/jdk1.7.0/bin/javah 300

Sudo update-alternatives -- install/usr/bin/javap/opt/java/jdk1.7.0/bin/javap 300

7. Then execute:

Sudo update-alternatives -- config java

Sudo update-alternatives -- config javac

Sudo update-alternatives -- config jar

8. Check whether the environment is properly configured

Java-version

Java version "1.7.0"

Java (TM) SE Runtime Environment (build 1.7.0-b147)

Java HotSpot (TM) Server VM (build 21.0-b17, mixed mode)