What Will Be The Output Of The Following C Codep Pre Langcsharp #428

What will be the output of the following C# code?</p> <pre><code class="language-csharp" line="1"> interface calc { void cal(int i); } public class maths :calc { public int x; public void cal(int i) { x = i * i; } } class Program { public static void Main(string[] args) { display arr = new display(); arr.x = 0; arr.cal(2); Console.WriteLine(arr.x); Console.ReadLine(); } } </code></pre>

This multiple choice question (MCQ) is related to the book/course gs gs108 CSharp. It can also be found in gs gs108 Object Oriented Concepts - Interfaces Implementation - Quiz No.1.

 interface calc { void cal(int i); } public  class maths :calc { public int x; public void cal(int i) { x = i * i; } } class Program { public static void Main(string[] args) { display arr = new display(); arr.x = 0; arr.cal(2); Console.WriteLine(arr.x); Console.ReadLine(); } }