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Dean Tinashe Katsaura
3,059 Pointsuse of if/else in input validation
Add more input validation to the program by printing "You must enter a positive number." if the user enters a negative number.
Add an if/else conditional statement just after parsing the user's provided input to an integer Write a conditional expression to ensure that the remainder of the code in the try block is only executed if the user provides a non-negative number If the user enters a negative number, output to the console the message "You must enter a positive number."
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
try
{
Console.Write("Enter the number of times to print \"Yay!\": ");
string input = Console.ReadLine();
int count = int.Parse(input);
if(count < 1)
{
Console.WriteLine("You must enter a positive number");
}
}
else
{
int i = 0;
while(i < count)
{
i += 1;
Console.WriteLine("Yay!");
}
catch(FormatException)
{
Console.WriteLine("You must enter a whole number");
}
}
}
}
}
1 Answer
Steven Parker
231,236 PointsIt looks like you have a couple of misplaced braces. Right now, the "catch" block is inside the "else" which is inside the "try".
The "catch" should come after the ending brace of the "try" block.