예제 #1
0
        public override bool Equals(Object obj)
        {
            // If parameter is null return false.
            if (obj == null)
            {
                return(false);
            }

            // If parameter cannot be cast to Point return false.
            TwoDPoint p = obj as TwoDPoint;

            if ((Object)p == null)
            {
                return(false);
            }

            // Return true if the fields match:
            return((x == p.x) && (y == p.y));
        }
예제 #2
0
        public static void Demo(string[] args)
        {
            TwoDPoint point1 = new TwoDPoint(1, 10);
            TwoDPoint point2 = new TwoDPoint(1, 10);

            Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", point1.GetHashCode(), point2.GetHashCode());

            TwoDPointWithHash newPoint1 = new TwoDPointWithHash(1, 1);
            TwoDPointWithHash newPoint2 = new TwoDPointWithHash(2, 2);

            Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", newPoint1.GetHashCode(), newPoint2.GetHashCode());

            // уникальных точек будет 2, хотя координаты их одинаковы
            Console.WriteLine("TwoDPointWithHash:");

            var twoDPointList = new List <TwoDPoint> {
                point1, point2
            };
            var distinctTwoDPointList = twoDPointList.Distinct();

            foreach (var point in distinctTwoDPointList)
            {
                Console.WriteLine("Distinct point: {0}", point);
            }

            // одна уникальная точка
            Console.WriteLine("TwoDPointWithHash:");

            var twoDPointWithHashList = new List <TwoDPointWithHash> {
                newPoint1, newPoint2
            };
            var distinctTwoDPointWithHashList = twoDPointWithHashList.Distinct();

            foreach (var point in distinctTwoDPointWithHashList)
            {
                Console.WriteLine("Distinct point: {0}", point);
            }
        }