Multiply if not zero

Proposed exercise

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Write a C# program to ask the user for a number; if it is not zero, then it will ask for a second number and display their product; otherwise, it will display "0".

Output

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Solution

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using System;
public class MultiplyZero
{
public static void Main()
{
int x,y;

Console.Write("enter x:");
x = System.Convert.ToInt32(System.Console.ReadLine());

Console.Write("enter y:");
y = System.Convert.ToInt32(System.Console.ReadLine());  

if (x!=0 && y!=0) 
Console.WriteLine("{0} x {1} = {2}", 
x, y, x*y);
else
Console.WriteLine("{0} x {1} = {2}", 
x, y, 0);
} 
}