CODEWITHSUNDEEP
c#string
sepeee
sepeee

Reputation: 47

String IndexOfAny function exception

Why this code gives index out of range exception when I run it ?

class stringcodetesting 
{
    static void Main(string[] args)
    {
        string t =  "  abcdefghigklmnopqrstuvwxyz" ;
        string c;
        char [] ar = { 'h', '1','2', '3','4'};

        c = "aarsa";              
        Console.WriteLine(t[t.IndexOfAny(ar,0,6)]);    
    }
}

but when the string t value ="abcdefghigklmnopqrstuvwxyz" (without space in the beginning of the string ) it works correctly without exception.

Upvotes: 0

Views: 459

Answers (2)

DiscipleMichael
DiscipleMichael

Reputation: 510

Yeah, already answered above as to the reason, but here is a solution. 

If(t.IndexOfAny(ar,0,6) >= 0)
    {
        Console.WriteLine(t[t.IndexOfAny(ar,0,6)]);
    }
Else
    {
        Console.WriteLine("No Match!");
    }

Upvotes: 0

user57508
user57508

Reputation:

Because within the first 6 characters (.IndexOfAny(..., 0, 6)) of t there's no occurence of any of the characters in ar. That is also reflected by the return value of -1, which means no occurence found.

Upvotes: 3

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