How to configure the environment variables of jdk1.7? Jdk1.7 environment variable configuration tutorial

DK environment variable configuration method:

1. Right-click Computer & rarr; properties & rarr; Advanced System Settings & rarr; advanced & rarr; environment variables

2. System variable & rarr; New

Variable name: JAVA_HOME

Variable value: (enter the jdk installation directory for the variable value, for example, E: \ Java \ jdk1.7.0)

3. Find the Path variable in the system variable and select Edit

Enter % JAVA_HOME % \ bin; % JAVA_HOME % \ jre \ bin at the end of the variable value;

(Note: If the original Path variable value does not end  ; Number, enter first; number and then enter the above code)

4. System variable & rarr; New

Variable name: CLASSPATH

Variable value:. % JAVA_HOME % \ lib; % JAVA_HOME % \ lib \ tools. jar (note the first one)

The system variables are configured.

5. Check whether jdk configuration is successful: run cmd and enter java-version (there is a space between java and-version)