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Hierarchical Inheritance: In this type of inheritance, we create multiple derived classes on the basis of the single base class.




PROGRAM
class A
{
            private int a;
            public void setA(int i)
            {
                        a=i;
            }
            public void showA( )
            {
                        System.out.println("a="+a);
            }
}
class B extends A
{
            private int b;
            public void setB(int j)
            {
                        b=j;
            }
            public void showB( )
            {
                        System.out.println("b="+b);
            }
}
class C extends A
{
            private int c;
            public void setC(int k)
            {
                        c=k;
            }
            public void showC( )
            {
                        System.out.println("c="+c);
            }
}
class HLevel
{
            public static void main(String args[ ])
            {
                         B ob1=new B( );
                        ob1.setA(5);
                        ob1.setB(10);
                        ob1.showA();
                        ob1.showB();
                        C ob2=new C( );
                        ob2.setA(19);
                        ob2.setC(15);
                        ob2.showA();
                        ob2.showC();
            }
}

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