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POHow do I prevent crashing due to invalid input in C#?
 

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  1. POHow do I prevent crashing due to invalid input in C#?
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    <p>The program I've written is set to only accept positive integers as input. If the user inputs a letter instead, then it crashes. Negative integers don't cause any problems, though it's not 'valid' in regards to how my program functions.</p> <p>What I want to do is:</p> <ol> <li><p>Prevent the program from crashing from invalid input.</p></li> <li><p>Display an error message if the input is invalid</p></li> <li><p>Have the program continue where it left off, without affecting the rest of the program.</p></li> </ol> <p>Also, a part of my program involves division. Is there a way to prevent the user from entering all zeros?</p> <p>This is in C#</p> <p>My code:</p> <pre><code>using System; </code></pre> <p>using System.Collections.Generic; using System.Linq; using System.Text;</p> <p>namespace OverallCalculator {</p> <pre><code>class Program { static void Main(string[] args) { bool shouldContinue; do { Console.WriteLine("Enter Striking Level: "); string striking = Console.ReadLine(); Console.WriteLine("Enter Grappling Level: "); string grappling = Console.ReadLine(); Console.WriteLine("Enter Submission Level: "); string submission = Console.ReadLine(); Console.WriteLine("Enter Durability Level: "); string durability = Console.ReadLine(); Console.WriteLine("Enter Technical Level: "); string technical = Console.ReadLine(); Console.WriteLine("Enter Speed Level: "); string speed = Console.ReadLine(); Console.WriteLine("Enter Hardcore Level: "); string hardcore = Console.ReadLine(); Console.WriteLine("Enter Charisma Level: "); string charisma = Console.ReadLine(); int gra = Convert.ToInt32(grappling); int str = Convert.ToInt32(striking); int dur = Convert.ToInt32(durability); int spd = Convert.ToInt32(speed); int tec = Convert.ToInt32(technical); int hdc = Convert.ToInt32(hardcore); int cha = Convert.ToInt32(charisma); int sub = Convert.ToInt32(submission); int total = str + gra + sub + dur + tec + spd + cha + hdc; int overall = total / 8 + 8; Console.WriteLine("The Overall is " + overall); Console.WriteLine("Do you wish to continue? y/n? "); if (Console.ReadLine() == "y") { shouldContinue = true; } else break; } while (shouldContinue == true); } } </code></pre> <p>} </p>
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    1. COPerhaps post some code so we can see where you are goin wrong... ;) Also is this C# or C?
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      1. USDominic Bou-Samra
    2. COAnd please decide on C or C# - they're completely different languages.
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    3. COsounds like homework
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      1. USNo Refunds No Returns
 

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