Install jdk7.0 and eclipse in Ubuntu

I use Ubuntu 10.04, install JDK, and install eclipse.

References Before installation: ReleaseArticle.

1. Download JDK 7.0 and eclipse

The address is on the official website.

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2. decompress the Network File

Run the gzip-D ***. targz command to decompress the file as follows:

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Run the tar vxf ***. tar command to decompress the preceding three files to the corresponding folder.

3. Configure Environment Variables

UseSudo gedit/etc/environment open the editor and add:

Export java_home =/home/Jacky/programs/jdk1.7.0 _ 10
Export jre_home =/home/Jacky/programs/jdk1.7.0 _ 10/JRE
Export classpath = $ classpath: $ java_home/lib: $ java_home/JRE/lib

The installation directory should be changed.

 

UseSudo gedit/etc/profile open the editor, and thenUmask 022:

Export java_home =/home/Jacky/programs/jdk1.7.0 _ 10
Export jre_home =/home/Jacky/programs/jdk1.7.0 _ 10/JRE
Export classpath = $ classpath: $ java_home/lib: $ java_home/JRE/lib
Export Path = $ java_home/bin: $ java_home/JRE/bin: $ path: $ home/bin

Make changes based on your installation directory.

4. Solve JDK conflicts

After you type Java-version in the command line of the terminal, the following situation occurs:

Program"Java" is included in the following software packages:

* Gcj-4.4-jre-headless

* Openjdk-6-jre-headless

* Cacao * gij-4.3

* Jamvm

Indicates that no default JDK quota is available. (It is said that Ubuntu has JDK by default. You need to configure the default one, but it is not confirmed. I did not find it)

Run the following command on the terminal:

Sudo Update-alternatives -- install/usr/bin/Java/home/Jacky/programs/jdk1.7.0 _ 10/bin/Java 300 sudo Update-alternatives -- install/usr/bin/javac javac/home/Jacky/programs/jdk1.7.0 _ 10/bin/javac 300 sudo Update-alternatives -- config Java

(Enter the path based on your actual situation)

Then, type Java-version in the command line to display it as follows:

Java version "1.7.0 _ 10"
Java (TM) se Runtime Environment (build 1.7.0 _ 10-b18)
Java hotspot (TM) server VM (build 23.6-b04, mixed mode)

JDK 7.0 is successfully installed.

5. Run the tar vxf ***. tar command to decompress the eclipse compressed package to the corresponding directory;

6. Double-click eclipse on the terminal command line or GUI.

 

The above is my actual installation process and is verified by myself.