[RESOLVED] simple question of char

Code:

---

char C='e';

C=JOptionPane.showInputDialog("A/B?").charAt(0);
switch(C)
{
        case'A':case'a':
        System.out.print("A");
        break;
        case'B':case'b':
        System.out.print("B");
        break;
        default:
            JOptionPane.showMessageDialog(null, "Please answerA/B.");
        break;
}

---

But people enter AAA,BBB instead of A,B,and that is ok...But i dun want it
being happen...how to de this bug?

Fetch the entire return value as a string and use a if...else if chain with equals() instead of a switch on a single character. Note that you can trigger an exception in your code simply by entering nothing at all or by pressing escape.