Join Regular Classroom : Visit ClassroomTech

Method overriding in java

/ Programming in JAVA / By

If subclass (child class) has the same method as declared in the parent class, it is known as method overriding in Java.

Usage of Java Method Overriding

  • Method overriding is used to provide the specific implementation of a method which is already provided by its superclass.
  • Method overriding is used for runtime polymorphism

Rules of method overriding:

  • Same method name
  • Different class
    • No. of arg
    • Type of arg
    • Seq of arg
  • Inheritance(IS-A relationship)

Example of method overriding

/* JAVA program to understand Method overriding  */
/* www.codewindow.in */
import java.util.*;
class dog
{
    public void run()
    {
        System.out.println("Dog is running");
        
    }
}
class cat extends dog
{
    public void run()
    {
        System.out.println("Cat is running");
        
    }
}
public class codewindow
{
    public static void main(String args[])
    {
        cat ob=new cat();
        ob.run();
        
    }
}

Output

Cat is running.