C# != Operator

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!= Operators C# Reference

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Operators C# Reference !=

using System;
class InequalityTest
{
    static void Main()
    {
        // Numeric inequality:
        Console.WriteLine((2 + 2) != 4);
        // Reference equality: two objects, same boxed value
        object s = 1;
        object t = 1;
        Console.WriteLine(s != t);
        // String equality: same string value, same string objects
        string a = "howdy";
        string b = "howdy";
        // compare string values
        Console.WriteLine(a != b);
        // compare string references
        Console.WriteLine((object)a != (object)b);
    }
}

About C# != Operators

The inequality operator (!=) returns false if its operands are equal, true otherwise. Inequality operators are predefined for all types, including string and object. User-defined types can overload the != operator.