Variable might not be initialized

Question

I'm trying to figure whats wrong with my code. When I compile it says variable checkfee might not have been initialized.

import javax.swing.JOptionPane;

public class BankCharge  {
    public static void main (String [] args) {
        int check, basefee;
        String temp;
        double checkfee; 
        double totalfee;
        basefee = 10;
        totalfee = checkfee + basefee;


        temp = JOptionPane.showInputDialog("Enter the number of checks");
        check = Integer.parseInt(temp);

        if (check < 20) {
            checkfee = .10 * check;
            JOptionPane.showMessageDialog(null, "Your amount for the month is " + totalfee);
        }
        if (check >= 20 && check <= 39) {
            checkfee = .08 * check;
            JOptionPane.showMessageDialog(null, "Your amount for the month is " + totalfee);
        }
        if (check >= 40 && check <= 59) {
            checkfee = .06 * check;
            JOptionPane.showMessageDialog(null, "Your amount for the month is " + totalfee);
        }
    }
}

You are finding totalfee without initialising checkfee – Jose Tuttu Mar 14 '15 at 15:42 — Jose Tuttu, Mar 14 '15 at 15:42
totalfee = checkfee + basefee; – Jose Tuttu Mar 14 '15 at 15:45 — Jose Tuttu, Mar 14 '15 at 15:45

score 1 · Answer 1 · answered Mar 14 '15 at 15:41

1

Because the initialization of checkfee variable is always done in conditional stament (if), it's not guaranteed to be initialized.

answered Mar 14 '15 at 15:41

Crazyjavahacking

9,343
2
31
40

score 0 · Answer 2 · answered Mar 14 '15 at 15:42

0

This warning is not important. You can write double checkfee=0; to remove it. What do you do if check >60 ??

answered Mar 14 '15 at 15:42

Florian Prud'homme

589
5
16

i disagree that *it's not important*. although your suggestion will make this warning disappear – Jossef Harush Kadouri Mar 14 '15 at 15:45

Variable might not be initialized

2 Answers2