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This article mainly introduces how to install Debian JDK7, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

1) download JDK:

Download JDK7u55:JDKu55 from Oracle's official website

2) put the jdk zip file under the / usr/local folder

Mv absolute path to the folder where jdk compressed files are stored / jdk-7u55-linux-i586.tar.gz / usr/local

3) decompress the jdk file to / usr/local

Cd / usr/local

Tar-zxvf jdk-7u55-linux-i586.tar.gz

4) modify the name of the decompressed folder

Mv jdk1.7.0_55 jdk

5) authorize / usr/local/jdk folder

Cd / usr/local

Chown-R currentAccount:currentAccountGroup jdk/

6) configure environment variables (root permission is required)

Vim / etc/profile

Append at the end of the file

Export JAVA_HOME=/usr/local/jdk/

Export JRE_HOME=/usr/local/jdk/jre

Export LASSPATH=.:$CLASSPATH:$JAVA_HOME/lib:$JRE_HOME/lib

Export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

Execute source / etc/profile after configuration to make the configuration file effective

7) set the installed jdk to the default jdk (root permission is required)

Update-alternatives-install / usr/bin/java java / usr/local/jdk/bin/java 300

Update-alternatives-install / usr/bin/jar jar / usr/local/jdk/bin/jar 300

Update-alternatives-install / usr/bin/javah javah / usr/local/jdk/bin/javah 300

Update-alternatives-install / usr/bin/javap javap / usr/local/jdk/bin/javap 300

Update-alternatives-- config java selects the jdk path as / usr/local/jdk/bin/java as the default jdk

8) verify that jdk is installed successfully

Java-version

The following information indicates that the installation is successful

Java version "1.7.055"

Java (TM) SE Runtime Environment (build 1.7.0_55-b13)

Java HotSpot (TM) Client VM (build 24.55-b03, mixed mode)

Thank you for reading this article carefully. I hope the article "how to install Debian JDK7" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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