To install java, download JDK installer and add/update the JAVA_HOME variable to JDK installation folder.

Maven can be downloaded from this location. I have extracted it in location – D:/Latest Setup/apache-maven-3.0.4. You can choose your own location.
Set the M2_HOME and MAVEN_HOME variable to the maven installation folder.

To run a maven from the command prompt, this is necessary. Update the PATH variable with 'Maven-installation/bin' directory.

Maven installation is complete. Now, let's test it from windows command prompt.
Go to start menu and type cmd in the application location search box.
Press ENTER. A new command prompt will be opened.
Type mvn -version in command prompt and hit ENTER.
Console$ mvn -version

This should show the version information of the maven installed. If there is any error shown, cross-check all the above steps.
In this tutorial, we learned how to install maven on windows.
Happy Learning !!