Delegate — math operations

Medium 30 pts New · no attempts yet csharp

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Use a delegate to invoke add or multiply functions.

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Declare delegate, assign method, invoke

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Official solution

using System;

delegate int MathOp(int a, int b);
class Program {
    static int Add(int a, int b) => a + b;
    static int Mul(int a, int b) => a * b;
    static void Main() {
        MathOp op = Add;
        Console.WriteLine(op(3, 4));
        op = Mul;
        Console.WriteLine(op(3, 4));
    }
}

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Explanation

Delegates are foundation for events and LINQ—expect follow-ups on Func/Action.

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Delegate — math operations

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