using System;

​

public class TestClass

{

    public string Name { get; set;}

    public int RandomValue { get; set; }

​

    public override bool Equals(object obj)

    {

        TestClass otherTestClass = (TestClass)obj;

        return otherTestClass.Name == Name;

    }

    public static bool operator ==(TestClass t1, TestClass t2)

    {

        return t1.Equals(t2);

    }

    public static bool operator !=(TestClass t1, TestClass t2)

    {

        return !(t1 == t2);

    }

    public TestClass(string name)

    {

        Name = name;

    }

}

public class Program

{

    public static void Main()

    {

        TestClass t1 = new TestClass("Peter");

        TestClass t2 = new TestClass("Franz");

        TestClass t3 = new TestClass("Klaus");

        t3.Name = "Peter";

        Console.WriteLine(t1 == t2);

        Console.WriteLine(t2 == t3);

        Console.WriteLine(t1 == t3);

    }

}