The number of years should be between 0 and 5 but no validation takes place
Revision as of 15:03, 9 March 2017 by Sluttyruttybutty (talk | contribs)
1 static int GetHowLongToRun()
2 {
3 int Years = 0;
4 Console.WriteLine("Welcome to the Plant Growing Simulation");
5 Console.WriteLine();
6 Console.WriteLine("You can step through the simulation a year at a time");
7 Console.WriteLine("or run the simulation for 0 to 5 years");
8 Console.WriteLine("How many years do you want the simulation to run?");
9 Console.Write("Enter a number between 0 and 5, or -1 for stepping mode: ");
10
11 while(true)
12 {
13 Years = Convert.ToInt32(Console.ReadLine());
14
15 if (Years >= -1 && Years <= 5)
16 break;
17 else
18 Console.Write("You MUST Enter a number between 0 and 5, or -1 for stepping mode: ");
19 }
20
21 return Years;
22 }
Explanation
Line 11: While loop added so that if the user inputs an invalid number, there is a way for them to input again, an unlimited number of times.
Line 15: Checks if the value of years is between -1 and 5 (all valid inputs).
Line 16: If line 15 is true, the program will break out of the while loop and continue as usual.
Line 17/18: If the above if statement is false, the user will be prompted to add a valid number.