Question

I am currently working on an app that adds JTextFields to a panel at runtime using:

int rowCounter = 1;             
pnlRows.add(new JLabel("Row " + rowCounter));
pnlRows.add(new JTextField(20));
pnlRows.revalidate();
validate();

The problem i have is that i want to use their values in a method but have no way of referencing them.

Is there a way to do something along the lines of:

int i = 1;
JTextField row + i = new JTextField();
i++;

So that every time i run the TextField made will be called row1, row2, row3 respectively.

Thank You.

Answer 1

No there isn’t, what you need to do is add them to a list so that later you can get them all.

Somewhere in your class you need this:

List<JTextField> fields = new ArrayList<JTextField>();

Then when they add them you can do this:

int rowCounter = fields.size()+1;             
pnlRows.add(new JLabel("Row " + rowCounter));
JTextField field = new JTextField(20);
pnlRows.add(field);
fields.add(field);
pnlRows.revalidate();
validate();

Then finally wne you want to get them all you can iterate the list and get all the text fields out one by one.

for(JTextField field : fields){
    dostuff ...
}