public class Tester { public static void main(String args[]) { Tester tester = new Tester(); System.out.println(tester.add(1, 2)); System.out.println(tester.add(1, 2,3)); } public int add(int a, int b) { return a + b; } public int add(int a, int b, int c) { return a + b + c; } }