Method Overloading

• Having multiple methods with the same name is called method overloading.
• Method overloading is used to increase the readability of the program
• Consider we are performing the same operation for multiple length arguments, instead of using different names to each method we can use method overloading

Types of method overloading

We can perform method overloading in 2 ways. They are:

1. Changing no of arguments
2. Changing the data type of arguments

1. Changing no of arguments

We change the number of arguments for each method so that object can differentiate based on the no of parameters

import java.util.Date;

class Overload {
	//2 argumented add
  void add (int a, int b){
    System.out.println(a+b);
  }
  //3 argumented add
  void add (int a, int b, int c){
    System.out.println(a+b+c);
  }     
}

public class Example {
    public static void main(String[] args) {
        Overload ob = new Overload();
        ob.add(2,3);
        ob.add(1,2,3);
    }
}

check output here

2. Changing data type of arguments

We can use the same method with different argument data types

class Overload {
  void add (int a, int b){
    System.out.println(a+b);
  }
  void add (double a, double b){
    System.out.println(a+b);
  }     
}

public class Example {
    public static void main(String[] args) {
        Overload ob = new Overload();
        ob.add(2,3);
        ob.add(1.4,2.3);
    }
}

check output here