Java Inheritance Program in java

OOP Programs:

Course: Object-Oriented Programming

Task 01

• Write a class with name "Abc" have Variable i,j.
• Write another class "XYZ" inherit the Class "Abc" and Variable k.
• Write the Default and Parameterized Constructor for both classes.
• Show method in both classes.
• Also Write a method which return the sum off i,j, and k variables.

Task 02

• Write public ,private and protected keywords with show methods and i,j Variables.
• And write your Observation.

File Name:-->Abc.java

class Abc{
	public int i,j;     // Two variables
	                    //Default Constructor
	Abc(){
		i=0;
		j=0;
		System.out.println("Defualt Constructor Abc");
		}
		     //Parametrized Constructor
	 Abc(int x, int y){
		System.out.println("Parameterized Constructor Abc");
		i=x;
		j=y;
		}

		  // Show
		public void show(){
			System.out.println("i"+i+"j"+j);
			}
}

File Name:-->XYZ.java

   //extends Keywords in use to inherit class
class XYZ extends Abc{ 
private int k;         // k is the Third Variable add
	                      
	          // Default Constructor
	XYZ(){
		k=0;
		System.out.println("Default Constructor of XYZ");
		}
		             // Parameterized Constructor
	XYZ(int a,int b,int c){
		super(a,b);
		k=c;
		System.out.println("Parameterized Constructor of XYZ");
		}

		// Show
	 public void show(){
		System.out.println("i =" +i+ " j =" +j+ " k = "+k);
		 // Add i,j,k Variables
		System.out.println("Sum =" +(i+j+k));
		}
	}
    

File Name:-->main.java

class main{
	public static void main(String args[])
	{
		/*Creating Object of the XYZ and Pass the Values That assign to i,j,k
		to Show Sum */

		XYZ hassan= new XYZ(12,12,12);
		hassan.show();


		System.out.println("\n");  //"\n" is used change the line
		// Creating Object XYZ to show Default Values
		XYZ ali=new XYZ();
		ali.show();

		}
	}