How to get specific ID for a JButton?

Question

I\'m trying to build a program that utilizes a 3x3 grid of buttons (using Java Swing), so I initialize it with a GridLayout and a loop to create the buttons:

Answer 1

you already keep a track of the buttons by the array index i.e. buttray[i]. Use getSource()

   public void actionPerformed(ActionEvent e) 
{
    // TODO Auto-generated method stub
    for(int i=0;i<buttray.length;i++)
    if(e.getSource()==buttray[i])
    {   
        //code here
    }   



}

Answer 2

There are multiple ways to distinguish which button fired the ActionEvent:

1. Set/get the action command of each button (eg if (e.getActionCommand().equals("Top Left"))
2. Use == to compare instances (eg if (e.getSource() == buttray[0] ))
3. Get the text of the JButton (eg if (e.getSource().getText().equals("Top Left"))
4. Set/get the name of the JButton (eg if (e.getSource().getName().equals("Top Left"))
5. Add a different ActionListener to each button (in other words 1:1 Listener to button)
6. ...and perhaps more ways will be added in the comments section below.