Install JDK 6.4 + Eclipse in CentOS 1.7

Install JDK 6.4 + Eclipse in CentOS 1.7

1. Install JDK 1.7

1. Uninstall OpenJDK

Rpm-qa | grep java

Rpm-e -- nodeps java-1.6.0-openjdk-1.6.0.0-1.50.1.11.5.el6_3.x86_64
Rpm-e -- nodeps java-1.7.0-openjdk-1.7.0.9-2.3.4.1.el6_3.x86_64
Rpm-e -- nodeps tzdata-java-2012j-1.el6.noarch

2. Download: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

Select jdk-7u67-linux-x64.tar.gz for download, store it in the/root/Downloads/directory, and move it to the/usr/directory. The command is as follows:

Music jdk-7u67-linux-x64.tar.gz/usr/local/

3. After the movement is complete, decompress the package. The command is as follows:

Tar zxvf jdk-7u67-linux-x64.tar.gz

4. decompress the package to obtain the jdk1.7.0 _ 67 folder and rename it with the following command:

Mv jdk1.7.0 _ 67 Java

5. Delete the installation package:

Rm-f jdk-7u67-linux-x64.tar.gz

6. Open/etc/profile and add the environment variable:

Vi/etc/profile

Add at the end of the profile file:

JAVA_HOME =/usr/local/Java
PATH = $ JAVA_HOME/bin: $ PATH
CLASSPATH =.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jar
Export JAVA_HOME
Export PATH
Export CLASSPATH

7. restart the system:

Reboot

8. Test whether JDK 1.7 is successfully installed:

Java-version

Ii. Install Eclipse

1. Download: http://www.eclipse.org/downloads/download.php? File =/eclipse/downloads/drops4/R-4.2.1-201209141800/eclipse-SDK-4.2.1-linux-gtk-x86_64.tar.gz

Store it in the/home/ghoulich/Downloads/directory and move it to the/opt/directory. The command is as follows:

Music eclipse-SDK-4.2.1-linux-gtk-x86_64.tar.gz/opt

2. After the movement is complete, decompress the package. The command is as follows:

Tar zxvf eclipse-SDK-4.2.1-linux-gtk-x86_64.tar.gz

3. Delete the installation package:

Rm eclipse-SDK-4.2.1-linux-gtk-x86_64.tar.gz

4. Create a starter on the desktop:

Right-click the desktop, select Create Launcher from the menu, enter Eclipse in the Name column of the pop-up window, and specify/opt/eclipse in the Command column.

5. Open Eclipse and create a new Hello project to test whether the installation is successful.

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