A java program for hierarchical inheritance

 A simple program for java  hierarchical inheritance 

Java program using eclipse IDE

package javaproject1;

class Birds

{

void display1()

{

System.out.println("Birds have wings and fethers");

}

}

class Crow extends Birds

{

void display2()

{

System.out.println("crow is a bird its color is black");

}

}

class Parrot extends Birds

{

void display3()

{

System.out.println("parrot is a bird its color is green");

}

}

class HierachicalDemo

{

public static void main(String a[])

{

Crow crow=new Crow();

crow.display1();

Parrot parrot=new Parrot();

crow.display2();

parrot.display3();

parrot.display1();

}

}

Short explanation of hierarchical inheritance in java