why overriding

why overriding???

• IN SOME SITUATIONS WE MIGHT  REQUIRE A SPECIFIC IMPLEMENTATION OF A METHOD ONLY
• IN THE EX IF WE DOESNOT OVERRIDE METHOD LEADS TO THE IMPLEMENTATION OF RECTANGLE WITH SHARPEDEGESMETHOD
• BUT WE REQUIRE THE IMPLEMENTATION OF RECTAGLE WITH ROUNDEDGE ONLY
• HERE WE NEED THE SAME METHOD AND PARAMETERS OF PARENT(super)CLASS ONLY BUT IMPLEMENTION WILL BE ACCORDING TO OUR REQUIREMENTS

THIS IS ABT JAVA METHOD OVERRIDING:

1. THE MAIN PURPOSE OF METHOD OVERRIDING CAN BE TO PROVIDE SPECIFIC IMPLEMENTATION OF A METHOD I.E ALREADY PROVIDED BY SUPER CLASS 
2. IT WILL ONLY POSSIBLE WHEN INHERITENCE IS PRESENT

EX

 class Rectangle

{

     void draw(int x,int y)

     {

          System.out.println("this is sharp rectangle with             edges" +x+"&"+y);

}

class Roundrect extends Rectangle

{
      void draw(int x,int y)

     {

          System.out.println("this is round rectangle with             edges" +x+"&"+y)

}

class Override

{

    public static void main(String args[])

    {

          Roundrect rr=new Roundrect();

           rr.draw(10,20);

}

}