Role of environment variable path and java_home when configuring JDK

The role of path is to specify the command search path, execute commands under the command, such as Javac compile the Java program, he will go to the PATH variable specified to find out whether the corresponding command program can be found, we need to add the bin directory in the JDK installation directory to the existing PATH variable

The bin directory contains frequently used executable files Javac, Java, Javados, etc., set the path variable can be executed in any directory Java, Javac tools.

The role of Java_home is that it points to the JDK's installation directory, and Eclipse is searching for java_home to find and use the installed JDK.

Role of environment variable path and java_home when configuring JDK