Design an interface namedColorable with a public void method namedhowToColor(). Every class of acolorable object must implement theColorable interface.
Design a class named Square which implementsColorable. The class should contain an integer instance variable named side, a constructor which takes an integer parameter to set the side variable, a mutator andaccessor for the side variable, and an implementation of thehowToColor method which displays the message "Color all four sides".
Your submission can be contained in a single file if you do not declare theColorable interface as public (ie. do not specify any visibility modifier for the interface).