WIN7 64-bit system install JDK and configure environment variables

2. First, download the JDK installation package, download it to the official website http://www.oracle.com/technetwork/java/javase/downloads/index.html, and click Java Platform on the left (JDK ) 7u51 into the next download page,

4. Click on the left of accept License Agreement, accept the license agreement, can download, because I installed the WIN7 64-bit system, so choose the corresponding 64-bit installation package,

6. Windows x64 corresponds to jdk-7u51-windows-x64.exe download,

8. After downloading the installation, I used to install the software to D, you can change the location according to their own habits,

10. After installation is to configure the JDK environment variables, on the desktop computer point right-click Properties, or Start menu computer Right-click Properties, left point advanced system Settings , click the environment variable below,

12. On the new pop-up window, click the New button under the system variable area, pop up the new window, the variable named java_home, the variable value to fill the final path of the JDK installation, I installed the address is D:\Program files\java\ Jdk1.7.0_51, so fill D:\Program files\java\jdk1.7.0_51, click OK to finish,

14. The following need to set the path variable, because the system itself already exists this variable, so do not need to create a new, in the originally added JDK related, find the path variable double-click Edit, because each value between the use ; Symbol breaks, so add at the end first ; (Note that the English format, do not lose other symbols, such as space), plus ; After the symbol is added %java_home%\bin;%java_home%\jre\binat the end, click OK to finish,

16. 8

    Add the CLASSPATH variable below, because it does not exist, so create a new one, variable name CLASSPATH, variable value %java_home%\lib\dt.jar;%java_home%\lib\ Tools.jar, the end of the space, the point is determined to complete, the environment variable configuration is complete, click OK to switch off the environment Variable Configuration window.

18. 9

    After the above steps are completed, the following verifies whether the configuration is successful, click Start run input cmd Open command Line window, enter java-version, display version 1.7.0_51, enter Javac- Version, also displays the 1.7.0_51, indicating that the JDK installation and environment variable configuration was successful.

    END

Precautions

• Because I install the path in the D drive, so the Java_home variable value is the D drive path, we must be set according to their own installation path. Because I installed the JDK version is 1.7.0_51, so the verification shows this version, different versions display different.

Reprinted from: https://jingyan.baidu.com/article/3c343ff70bc6ea0d377963df.html

WIN7 64-bit system install JDK and configure environment variables