Wednesday 11 April 2018

Method Overriding


  • If subclass (child class) has the same method as declared in the parent class, it is known as method overriding in java.
Usage:-
  • Method overriding is used to provide specific implementation of a method that is already provided by its super class.
  • Method overriding is used for runtime polymorphism
    Rules for Java Method Overriding:-
  • method must have same name as in the parent class
  • method must have same parameter as in the parent class.
  • must be IS-A relationship (inheritance).
    Example:
class Vehicle
{
void run()
{
System.out.println(“Vehicle is running”);
}
}
class Bike2 extends Vehicle
{
void run()
{
System.out.println(“Bike is running safely”);   //Method Overriding
}
public static void main(String args[])
{
Bike2 obj = new Bike2();
obj.run();
}

0 Comments:

Post a Comment

Popular Posts

Categories

AI (27) Android (24) AngularJS (1) Assembly Language (2) aws (17) Azure (7) BI (10) book (4) Books (113) C (77) C# (12) C++ (82) Course (60) Coursera (176) coursewra (1) Cybersecurity (22) data management (11) Data Science (85) Data Strucures (6) Deep Learning (9) Django (6) Downloads (3) edx (2) Engineering (14) Excel (13) Factorial (1) Finance (5) flutter (1) FPL (17) Google (18) Hadoop (3) HTML&CSS (46) IBM (25) IoT (1) IS (25) Java (92) Leet Code (4) Machine Learning (43) Meta (18) MICHIGAN (4) microsoft (3) Pandas (3) PHP (20) Projects (29) Python (726) Python Coding Challenge (169) Questions (2) R (70) React (6) Scripting (1) security (3) Selenium Webdriver (2) Software (17) SQL (40) UX Research (1) web application (8)

Followers

Person climbing a staircase. Learn Data Science from Scratch: online program with 21 courses