public class SumTest { public static void doSum(Integer x, Integer y) { System.out.println("Integer sum is " + (x + y)); } public static void doSum(double x, double y) { System.out.println("double sum is " + (x + y)); } public static void doSum(float x, float y) { System.out.println("double sum is " + (x + y)); } public static void doSum(int x, int y) { System.out.println("int sum is " + (x + y)); } public static void main(String[] args) { doSum(10, 20); doSum(10.0, 20.0); } }