// Hunter Schafer, CSE 143
// This class shows the example I did at the end of lecture to improve the code
public class Style {

    // Version 1
    public int helper(int a) {
        ListNode b = front;
        int a_ = 0;
        int b_ = 0;
        int c = 0;
        while (b != null) {
            if (b.data == a) {
                a_ = b_;
                c = 1;
            }
            b_++;
            b = b.next;
        }

        if (c == 1) {
            return a_;
        } else {
            return -1;
        }
    }

    // Version 2
    // Changed: VARIABLE NAMES ARE IMPORTANT
    public int indexOf(int value) {
        ListNode current = front;
        int indexFound = 0;
        int index = 0;
        int hasFound = 0;
        while (current != null) {
            if (current.data == value) {
                indexFound = index;
                hasFound = 1;
            }
            index++;
            current = current.next;
        }

        if (hasFound == 1) {
            return indexFound;
        } else {
            return -1;
        }
    }

    // Version 3
    // Changed: Made hasFound a boolean to better represent what it is doing
    public int indexOf(int value) {
        ListNode current = front;
        int indexFound = 0;
        int index = 0;
        boolean hasFound = false;
        while (current != null) {
            if (current.data == value) {
                indexFound = index;
                hasFound = true;
            }
            index++;
            current = current.next;
        }

        if (hasFound) {
            return indexFound;
        } else {
            return -1;
        }
    }

    // Version 4 (Final)
    // Changed: Initialized indexFound to be -1 so we don't have to check if we found something
    public int indexOf(int value) {
        ListNode current = front;
        int indexFound = -1;
        int index = 0;
        while (current != null) {
            if (current.data == value) {
                indexFound = index;
            }
            index++;
            current = current.next;
        }
        return indexFound;
    }
}