static void Main(string[] args)
{
Apple apple1 = new Apple("Красное яблоко", 100, 100);
Apple apple2 = new Apple("Зеленое яблоко", 90, 110);
var sumApple1 = Apple.Add(apple1, apple2);
var sumApple2 = apple1 + apple2;
var sumApple3 = apple1 + 100;
Console.WriteLine(apple1);
Console.WriteLine(apple2);
Console.WriteLine(sumApple1);
Console.WriteLine(sumApple2);
Console.WriteLine(sumApple3);
Console.WriteLine(apple1 == apple2);
Console.WriteLine(apple1 == sumApple3);
Console.ReadLine();
}
public static Apple operator +(Apple apple1, int volume)
{
var apple = new Apple(apple1.Name, apple1.Calorie, apple1.Volume + volume);
return(apple);
}