Question

I Have a string array with 5 values, i want the program to loop even though i don’t enter a value for the arrays. If I split the arrays without inserting anything (pressing ….. (5 times “.” to split the array) then it doesn’t crash it will just loop. But if i just hit enter, then the program crashes.

Is there a way to fix the loop so that even though there is no kind of input, that it won’t crash? (It also crashes if you don’t complete all 5 values.)

Net = Console.ReadLine();
            string[] oktet = new string[5]; 
            oktet = Net.Split('.', '/'); 

            temp = oktet[0]; //inputs value of array in temp
            NaN = int.TryParse(temp, out Net0);
            temp = oktet[1];
            NaN = int.TryParse(temp, out Net1);
            temp = oktet[2];
            NaN = int.TryParse(temp, out Net2);
            temp = oktet[3];
            NaN = int.TryParse(temp, out Net3);
            temp = oktet[4];
            NaN = int.TryParse(temp, out subnet);
        }
        while (!NaN | Net0 > 255 | Net0 < 0 | Net1 > 255 | Net1 < 0 | Net2 > 255 | Net2 < 0 | Net3 > 255 | Net3 < 0 | subnet > 32 | subnet < 0);

I know it’s pretty amateur, but hey, we’re here to learn right? 🙂

Thanks in advanced!

Answer 1

You can try to do something like this:

string[] oktet = Net.Split('.', '/'); // size array according to input

if (oktet.Length != 5) continue; // reloop on bad input

Those two lines of code replace these:

        string[] oktet = new string[5]; 
        oktet = Net.Split('.', '/');