Question

1) In the following method (actionListener) a user select a grade (e.g. A-F) from a JComboBox.

2) There are multiple JComboBoxes, and each selection made gets stored into a single String[] array.

PROBLEM:
Here is the dilemma, if a user goes back and changes a selection made from a random JComboBox the previous grade selection does not get replaced in the array, however the new selection made gets stored at the next array index.

How can I make the program replace the previous grade selection and not just add the new selection?

relevant variables:

int counter;
private JComboBox[] gradeField;
//grade.userGrades[] is array of grades taken from selected combo boxes                  

Action Listener anonymous class:

gradeField[counter].addActionListener(new ActionListener () {
            @Override
            public void actionPerformed(ActionEvent e) {
                Object holder = e.getSource();
                JComboBox tempGradeBox = (JComboBox)holder;
                String theGrade = (String)tempGradeBox.getSelectedItem();
                grade.userGrades[grade.getNext()] = theGrade;
                grade.updateNext();
            }                       
        });

Thanks in advance for any help.

Answer 1

Update the user grade being at the same index as the combo box:

    final int index = counter;
    gradeField[counter].addActionListener(new ActionListener () {
        @Override
        public void actionPerformed(ActionEvent e) {
            Object holder = e.getSource();
            JComboBox tempGradeBox = (JComboBox)holder;
            String theGrade = (String)tempGradeBox.getSelectedItem();
            grade.userGrades[index] = theGrade;
        }                       
    });