Adding action to a JButton when using a for loop

Question

I'm trying to dynamically add buttons (JButtons), which changes names everytime. I doing it with a for loop and is not really problematic. but when adding an action listener or identifying which button got pressed, that is when things don't work so good. MyFrame.java ``` import javax.swing.*; import java.awt.event.*; import java.awt.GridLayout; public class MyFrame extends JFrame implements ActionListener { private JPanel panel; private static JButton[] buttons = new JButton[18]; // set all static calculate JButtons private static JButton equalsBtn, addBtn, subBtn, multiBtn, divBtn, clearBtn, plusMinusBtn, decimalBtn; // set all static number JBtuttons private static JButton zeroBtn, oneBtn, twoBtn, threeBtn, fourBtn, fiveBtn, sixBtn, sevenBtn, eightBtn, nineBtn; private static JTextField resultField; // numOne is the first row of figures en the second numSecond is the second row private static double numOne, numSecond, result; private static double plusMinus; private static int addCl…

Accepted Answer

There is nothing listening for when the buttons are pressed. When you create each button, you must give them action listeners.

Also, you should be adding the same button that you create.

```
buttons[i] = new JButton("" + a_btnNames[i]);
//buttons[i] should now be added to the panel
```

New for loop should be...

```
for(int i = 0; i < buttons.length; i++){
    buttons[i] = new JButton("" + a_btnNames[i]); //create button & add to array
    buttons[i].addActionListener(this); //add an action listener to the current button
    panel.add(buttons[i]); //add that same button to the panel

}
```

Adding action to a JButton when using a for loop

Solution

Problem