This program comprises of creating two objects for our own class shown below. Here A is the main class a1,a2 are the objects created for the class.

This program comprises of using a inhertance in java as shown in the program. A is the class, B is the another class. class A is inherited by the class B.

This is a multilevel inhertance in java where number of methods can be created and accessed any where in the class a1 in the main class is the new object. here class A is inherited by both B and C i and j can be accessed from the method lmn.