how to write isComporable method in java code example

Example 1: methods in java

A method in java is a group of statements to carry out some operation also 
known as functions.

Example 2: method in java

Method is a collection of statements
which returns a value upon its execution
Method have a return and the method's name may or not be same as the class
name.
Method is invoked explicitly.
Method is not provided by compiler in any case.
Methods are inherited by child classes.