JDK Download and installation

1, download and install the JDK, the latest version is 1.8.0, official website: http://www.oracle.com/technetwork/java/javase/downloads/index.html

Click on the selected JDK, go to the appropriate download page, accept license, select the appropriate version

2.JDK environment variable configuration:

• Modify My Computer--advanced environment variable---->java_home, without which the variable value is the JDK installation directory, my installation directory is C:\Program files\java\jdk1.8.0

• Modify My Computer--high-level environment variable->classpath, without which the variable value is: ";%java_home%\bin;%java_home%\jre\bin; ”
• Modify My Computer--high-level environment variable->classpath, without which the variable value is: ".; %java_home%\lib;%java_home%\lib\tools.jar ". Be careful not to forget the front dot and the middle semicolon.

3. Verification

Enter cmd command in the Run box, enter java-version after carriage return, output the corresponding version

Or the Javac command appears as you can:

JDK Download and installation