method overloading
//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)); } }