Java environment variable settings

　　　

First step: Install

To successfully configure a variable, you install the JDK and JRE, and the installation is successful before the next environment configuration can be made.

JDK Download | JRE download

Step Two: Configure

Start configuring environment variables, right-click My Computer---properties-----advanced---environment variables

1. Select "New System Variable"--pops up the "New System Variable" dialog box, enter "Java_home" in the "Variable name" text box, enter the installation path of the JDK in the "Variable Value" text box (that is, the folder path of step 5), click the "OK" button,
2. View the path variable in the system variables options area, if it does not exist, create a new variable path, otherwise select the variable, click the Edit button, and add the%java_home%\bin;%java_home%\jre\bin at the beginning of the Variable Value text box ; " Or a direct "%java_home%\bin;
3. View the CLASSPATH variable in the system Variables options area, and if it does not exist, create a new variable classpath, otherwise select the variable, click the Edit button, and add "in the start position of the Variable value text box."; %java_home%\lib\dt.jar;%java_home%\lib\tools.jar;".

Step Three: Detect

The configuration of the test environment variable is now successful or not. Enter "JAVAC" in the DOS command line window and the output Help information is configured correctly.

2017-10-0818:14:59

Java environment variable settings