package POB_2019.Java.zad1_2; public class zad1_2 { public static void main(String[] args){ Vector2D vec1 = new Vector2D(5, 11); Vector2D vec2 = new Vector2D(-2, 4); Vector2D vec3 = vec1.add(vec2); Vector2D vec4 = vec2.substract(vec1); double multiplicationResult = vec2.multiply(vec1); System.out.println(vec3); System.out.println(vec4); System.out.println(multiplicationResult); } }