практика 17 №1

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace mainSolution
{


    class Point
    {

        private int x, y;
        private double Sqr(int x) => x * x;
        public Point(int x, int y)
        {
            this.x = x;
            this.y = y;
        }
        public Point() => x = y = 0;


        public void Print()
        {
            Console.WriteLine(x + " " + y);
        }
        public double Range()
        {
            return Math.Sqrt(Sqr(x) + Sqr(y));
        }
        public void move(int a, int b)
        {
            x += a;
            y += b;
        }

        public int X
        {
            get =>x;
            set => x = value;
        }
        public int Y
        {
            get => y;
            set => y = value;
        }

        public int Mult
        {
            set
            {
                x *= value;
                y *= value;
            }
        }
        public int this[int index]//индексатор
        {
            get
            {
                try
                {
                    if (index > 1)
                        throw new Exception();
                }
                catch(Exception ex)
                {
                    Console.WriteLine("index of Point can't be more than 1");
                    System.Environment.Exit(1);
                }
                return index == 0 ? x : y;

            }
        }


        public static Point operator ++(Point p)
        {
            return new Point(++p.x, ++p.y);
        }
        public static Point operator --(Point p)
        {
            return new Point(--p.x, --p.y);
        }
        public static bool operator true(Point a)//перегрузка констант true и false
        {
            return a.x == a.y ? true : false;
        }
        public static bool operator false(Point a)//перегрузка констант true и false
        {
            return a.x == a.y ? true : false;
        }

        public static Point operator +(Point a, int b)//перегрузка оператора '!'
        {
            a.x += b;
            a.y += b;
            return a;
        }

    }

    static class Program
    {

        static void Main(string[] args)
        {
            Point a = new Point(2, 3);
            a += 3;
            a.Print();
        }

    }
}