Question

JPanel p = new JPanel();
    p.setLayout(new GridLayout(4, 4, 5, 5));
    String[] buttons = {
        "1", "2", "3", "/", "4",
        "5", "6", "*", "7", "8", "9", "-", "0", ".", "=", "+"
    };
    for (int i = 0; i < buttons.length; i++) {
            p.add(new JButton(buttons[i]));
   add(p);

This code produces a nice calculator layout is there a way to addActionListener to each button while at the same time keeping this layout
what i mean is not doing it for each and every button like so.

JButton button1 = new JButton("1");
     button1.addActionListener(new ActionListener() {
       public void actionPerformed(ActionEvent event) {
// interesting code for button1 goes here
      }
   });

Answer 1

i did it using this code…

   String[] buttons = {
        "1", "2", "3", "/", "4",
        "5", "6", "*", "7", "8", "9", "-", "0", ".", "=", "+"
    };

    Action[] allActions = new Action[buttons.length];

    for ( i = 0; i < buttons.length; i++) {

        allActions[i] = new ButtonAction(buttons[i],i);

        JButton button = new JButton(allActions[i]);

           panel.add(button);


        }

with the class ButtonAction as follows

  public class ButtonAction extends AbstractAction 
  {
int i;
   public ButtonAction(String text, int i) {
    super(text);
    this.i = i;
    }
   public void actionPerformed(ActionEvent e) {
    /* you can put any action here. either make the action depend on array value or 
      the string text */
   System.out.println(i);

   }
 }