inheritancedemo

/**
 * parent class
 */
package com.training;

/**
 * @author arun
 *
 */
public class Addition {
	int a;
	int b;
	
	void demo(){
		System.out.println("This program is the example of inheritance in java");
	}
	
	void displayno(){
		System.out.println("a and b :" +a +"   " +b);
	}
	
	void addition(){
		System.out.println("addition of a and b is: " +(a+b) );
	}

}

/**
 * child class
 */
package com.training;

/**
 * @author arun
 *
 */
public class Addition1 extends Addition{
	int c;
	
	void thirdno(){
		System.out.println("c :" +c);
	}
	void multiplication(){
		System.out.println("multiplication of a,b and c is: " +(a*b*c));
	}

class SimpleInheritance{
		
	}
	public static void main(String[] args) {
		Addition a1 =  new Addition1();
		a1.a = 2;
		a1.b = 4;
		a1.demo();
		System.out.println("-----------------------------------------------");
		System.out.println("contents of parent class Addition : ");
		a1.displayno();
		a1.addition();
		Addition1 a2 = new Addition1();
		// public members of super class can be accessed by sub class
		a2.a = 4;
		a2.b = 5;
		a2.c = 3;
		System.out.println("contents of child class Addition1 :");
		a2.thirdno();
		a2.multiplication();
		
	}

}

/* output
This program is the example of inheritance in java
-----------------------------------------
contents of parent class Addition : 
a and b :2   4
addition of a and b is: 6
contents of child class Addition1 :
c :3
multiplication of a,b and c is: 60
*/

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