How to configure Java environment variables

How to configure Java environment variables

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Java environment variable configuration:

setting of the 1.java_home variable

Settings for 2.Path variables

Settings for 3.Classpath variables

Of course, before we do, we need to download the Java SDK jdk

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JDK Download

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   "Baidu Search ' jdk ', enter the first article.

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   "" In downloads select Java download to enter Java download list

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   "" Click on Accept License agreement, select the Windows section to download the installation package.

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   Once downloaded, go to the folder and double-click the application to install as prompted until the installation is complete.

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    "" To test if the JDK was successfully installed, search for cmd in start and enter "Java-version".

    . END

Java_home variable Settings

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   First, right-click Computer to go to properties and select Advanced system settings.

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   Click on "Environment variables" in "Advanced" to enter the environment variable editing interface.

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   In the "System variables" below, there is no java_home variable, then we need to click "New"

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   Variable name input: Java_home

   The value of the variable refers to the actual installation path (for example, the path of the small part is: C:\Program files\java\jdk-9).

   Finally click OK.

   . END

Path variable settings

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   Also in "System variables" we can see that the path variable already exists, then we just need to click "Edit" to enter the PATH variable edit

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   Variable name unchanged, variable value changed to "%java_home%\bin;%java_home%\jre\bin;", finally click OK.

   . END

Classpath Variable Settings

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   Variable name type "Classpath"

   Variable value type ".; %java_home%\lib\dt.jar;%java_home%\lib\tools.jar; 】

   Be careful not to omit the symbol from the variable value, and then click OK.

   . END

Test environment configuration is successful

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   After you complete the above three variables configuration, do not forget to click OK one step at a.

   Similarly, search for "cmd" in "Start".

   Then, type "java" and "Javac".

   A message appears stating that the configuration was successful.

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How to configure Java environment variables