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How to configure java environment variables

Jan 13, 2020 pm 04:07 PM
javaenvironment variablesConfiguration

How to configure java environment variables: 1. Right-click [Computer], select [Properties], click [Advanced System Settings] to open the environment variable settings; 2. Create a new [JAVA_HOME] variable and edit [Path] ] variable; 3. Create a new [Classpath] variable and edit it.

How to configure java environment variables

Specific method:

JAVA_HOME variable setting

First right-click [Computer] to enter [ Properties] and then select [Advanced system settings].

How to configure java environment variables

Click [Environment Variables] in [Advanced] to enter the environment variable editing interface.

How to configure java environment variables

In the [System Variables] below, the JAVA_HOME variable does not exist, then we need to click [New]

How to configure java environment variables

Variable name input: JAVA_HOME

(Free video tutorial sharing: java video tutorial)

The variable value refers to the actual installation path (such as the editor’s path is: C:\Program Files\Java\jdk-9), and finally click OK.

How to configure java environment variables

Path variable setting

Also in [System Variables] we can see that the path variable already exists, then we only You need to click [Edit] to enter the editing of the path variable

How to configure java environment variables

The variable name remains unchanged and the variable value is changed to [%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin; ], and finally click OK.

How to configure java environment variables

Classpath variable setting

Similarly, there is no Classpath variable in the system variables. Click to enter [New]

How to configure java environment variables

Type the variable name [Classpath]

Type the variable value [.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME %\lib\tools.jar; ]

Note: Do not miss the symbols in the variable value, and finally click OK.

How to configure java environment variables

Test whether the environment configuration is successful

After completing the above three variable configurations, don’t forget to click OK step by step.

Similarly, search [cmd] in [Start], then type [java] and [javac], and the message as shown in the figure will appear, indicating that the configuration is successful.

How to configure java environment variables

How to configure java environment variables

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