How can I split JButton? Any idea?

[Velika Srbija]

I just need a regular JButton that will differently respond if a user click at left or right half of the JButton. It will serve as "Back/Forward" buttons, but mixed into single JButton.

Any idea on how to implement such functionality?

[Michael Dunn]

in the space you use for a button, wouldn't it be easier to use
2 basic arrow buttons?

consider the left-right buttons of a JTabbedPane (when set as scrollLayout),
or the up-down buttons of a JSpinner.

[Velika Srbija]

Not bad idea, but I already have my GUI layout with set of 4 JButtons in a column settled at the right-down corner of my frame. The second one should be "Select" button. I don't want two buttons instead of one "Select" button, because I want to have a label over only one button, like "< Select >" so the user can navigate selection to the left or right in my app.

[Michael Dunn]

maybe something like this

    
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Testing extends JFrame
{
  public Testing()
  {
    setLocation(300,100);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JPanel p = new JPanel();
    final JButton btn = new JButton("<     >");
    p.add(btn);
    getContentPane().add(p);
    pack();
    btn.addMouseListener(new MouseAdapter(){
      public void mousePressed(MouseEvent me){
        int width = btn.getWidth();
        if(me.getX() < width/2) System.out.println("Left Side");
        else System.out.println("Right Side");
    }});
  }
  public static void main(String[] args){new Testing().setVisible(true);}
}

[Velika Srbija]

Thank you Michael. It works as expected. Thanks again!