How to check the java (jdk) installation path in windows or linux system

Check the JDK installation path under Windows

First use the command line to check whether the JDK is installed:

java -version

(Note - there is a space in front)

Method 1:

Command line input:

set java_home

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Method 2:

Command line input:

echo %java_home%

Check the JDK installation path under Linux

First check whether the JDK is installed in the terminal:

java -version

Next:

echo $JAVA_HOME

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