3. Le polymorphisme 1. Surcharge 2. Redéfinition 4. L’abstraction Output: 18 88 public class MethodOverloading { static int add(int a, int b) { return a + b; } static int add(int a, int b, int c) { return a + b + c; } public static void main(String[] args) { System.out.println(MethodOverloading.add(2, 16)); System.out.println(MethodOverloading.add(78, 1, 9)); } }