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The CLASSPATH variable provides us with the library files location.

The PATH variable in our system provides the exact location of executables that will be used for running Java programs, such as javac and java.We will need to update our system’s Environment variables with our installed JDK bin path to run the Java programs because while executing the programs, the command prompt will look for the complete JDK bin path.This is the directory structure for our example.If we make any change to this path at all, we need to make a note of it as it will be required in the upcoming steps. JDK gets installed in the C directory of our system by default having the path “C:\Program Files\Java\jdk-11.0”.To recover some of our system’s disk space, it is good practice to delete the downloaded exe file once the download has been done.Click on the Close button once the installation has finished.Click on Next to proceed with the installation, and follow the Installation guide provided for any queries.