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Minus operator overload in C#


Below is the code to overload "minus" operator in C#.

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

namespace oproverloadDemo
{
    class A
    {
        int x;
        A()
        {

            x = 0;
        }
        A(int x)
        {

            this.x = x;
        }

        public static A operator+(A a1, A a2)
        {
            A a3 = new A();
            a3.x = a1.x + a2.x;
            return a3;
        }
        void show()
        {
            Console.WriteLine("x={0}", x);
        }
        static void Main(string[] args)
        {
            A a = new A(10);
            A b = new A(20);
            A c = a + b;
            c.show();
            Console.ReadLine();
        }
    }
}


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