what is the difference between method overloading and method overriding

method overloading vs overriding

Method Overloading: 
Access modifier can be same or different, 
Return-Type can be same or different, 
Parameters MUST be different, Method name MUST be same, 
any method can be overloaded

Method Overriding:
After a method is inherited it is possible to change 
the implantation of the method in the child class. 
This concept is called overriding. Method name, 
Parameter, and Return-Type MUST be same
MUST happen in the sub class, access modifier MUST be same 
or more visible, ONLY the instance methods can be overridden
@Override annotation MUST be applicable. 
Static and Constructor cannot be override.
We can use the @Override annotation before the method 
to declare the overriding. This annotation will allow 
the compiler to help ensure the method is overridden correctly 
EXAMPLE: get method WebDriver driver = new ChromeDriver(); 
driver.get("URL") ==> opens the url from chrome

Posted by: Guest on May-16-2021

When you have two methods of the same name but having different properties, the case is called Overloading. On the other hand, Overriding refers to a situation where two methods with the same name and properties occur, but the two occurring in a parent and child class respectively.

//https://www.geeksforgeeks.org/overloading-in-java/ // Java program to demonstrate working of method // overloading in Java. public class Sum { // Overloaded sum(). This sum takes two int parameters public int sum(int x, int y) { return (x + y); } // Overloaded sum(). This sum takes three int parameters public int sum(int x, int y, int z) { return (x + y + z); } // Overloaded sum(). This sum takes two double parameters public double sum(double x, double y) { return (x + y); } // Driver code public static void main(String args[]) { Sum s = new Sum(); System.out.println(s.sum(10, 20)); System.out.println(s.sum(10, 20, 30)); System.out.println(s.sum(10.5, 20.5)); } }

Method overloading is providing two separate methods in a class with the same name but different arguments, while the method return type may or may not be different, which allows us to reuse the same method name. In my framework== I use implicit wait in Selenium. Implicit wait is an example of overloading. In Implicit wait we use different time stamps such as SECONDS, MINUTES, HOURS etc., A class having multiple methods with same name but different parameters is called Method Overloading

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