Question

I have a string array defined as String[] sEmails; that I am trying to populate with 10 different (but similar) strings (email addresses in this case).

Here is the code I’m trying to use to populate the array.

public void populateEmailArray()
    {
        for (int x = 0; x < 10; x++)
        {
            switch(x)
            {
                case 1:
                    sEmails[x] = sRepStuff + "1" + sGmail; 
                break;
                case 2:
                    sEmails[x] = sRepStuff + "2" + sGmail;
                break;
                case 3:
                    sEmails[x] = sRepStuff + "3" + sGmail;
                break;
                case 4:
                    sEmails[x] = sRepStuff + "4" + sGmail;
                break;
                case 5:
                    sEmails[x] = sRepStuff + "5" + sGmail;
                break;
                case 6:
                    sEmails[x] = sRepStuff + "6" + sGmail;
                break;
                case 7:
                    sEmails[x] = sRepStuff + "7" + sGmail;
                break;
                case 8:
                    sEmails[x] = sRepStuff + "8" + sGmail;
                break;
                case 9:
                    sEmails[x] = sRepStuff + "9" + sGmail;
                break;
            }
        }
    }

The end result I want to be something like this

sEmails['[e-mail]','[e-mail]','[e-mail]'] and so and and so forth to [e-mail]

But on the first try of trying to set an sEmails[x] it gives me an error of “NullReferenceException was unhandled. Object reference not set to an instance of an object.”

I have no idea what I’m doing wrong here because the code seems sound in my mind. Any help on this would be greatly appreciated.

Answer 1

Try instantiating your array with

String[] sEmails = new String[10];

You can also make that loop far more succinct:

public void populateEmailArray()
{
    for (int x = 0; x < 10; x++)
    {

        sEmails[x] = sRepStuff + x + sGmail; 
    }
}