static void Main(string[] args) { //186p int n1 = 5; int n2 = 10; int sum = n1 + n2; string txt1 = "123"; string txt2 = "456"; Console.WriteLine(txt1 + txt2); //187p Kilogram kg1 = new Kilogram(5); Kilogram kg2 = new Kilogram(10); Kilogram kg3 = kg1 + kg2; Console.WriteLine(kg3); }
public Kilogram Add(Kilogram target) { return(new Kilogram(this.mass + target.mass)); }