Non exceptional case, array out of bounds

Soumita Parui

I understand that what I'm trying to do is a bit of a hack, but it's interesting nonetheless.

I'm in a situation where it is quite possible that an array might not have as many items as I expect.

Here's the concept:

namespace TESTAPP {     class Program     {         static void Main(string[] args)         {             string derp = "foooooo";             //The split is important, you might not have the character there to split by             Writer(derp.Split('x')[0] ?? ".");             Writer(derp.Split('x')[1] ?? ".");         }          private static void Writer(string writeme)         {             Console.WriteLine(writeme ?? "..");         }     } }

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes13y ago
You can also do it without throwing an exception by checking whether the string contains the split character before attempting to split it.

Notice that there's no point using the expression derp.Split('x')[i] as the left hand operand of the null-coalescing operator ??.

That's because it can never be null as it always returns a char or throws an exception:

using System;

namespace TESTAPP
{
class Program
{
static void Main(string[] args)
{
string derp = "foooooo";
//The split is important, you might not have the character there to split by
if (derp.Contains("x"))
{
Writer(derp.Split('x')[0]);
Writer(derp.Split('x')[1]);
}
else
{
Writer(derp); // or just return the string itself
}
}

private static void Writer(string writeme)
{
Console.WriteLine(writeme);
}
}
}
Kunal Vaishya13y ago
Hello ,
You can validate like this

string derp = "foooooo";
//The split is important, you might not have the character there to split by
try
{
string[] sStringArray;
sStringArray = derp.Split('x');

for (int i = 0; i < sStringArray.Length - 1; i++)
{
Writer(derp.Split('x')[i] ?? ".");
}
}
catch (Exception ex)
{

}