How to set focus on opened new JFrame??

Question

Hi,
I have a problem:
I have my active JFrame that I am currently running.
When I press a JButton I have an action that it opens another JFrame,
which is minimized (maybe it doesn't have a focus enabled or something)
How to make the opening JFrame window maximized and make it be the one on the foreground (put the first JRame in background)
Thanks

Answer 1

Try this:
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
public class JFrames extends JFrame{
     public JFrames(){
          super();
          // exit on close
          this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          // button to create new JFrame
          JButton button = new JButton("New Frame");
          button.addActionListener(new ActionListener(){
               public void actionPerformed(ActionEvent e){
                    // create new instance and maximize it
                    JFrames frame = new JFrames();
                    frame.setExtendedState(frame2.getExtendedState()|frame2.MAXIMIZED_BOTH);
          // panel to add the button to
          JPanel panel = new JPanel();
          panel.setPreferredSize(new Dimension(300, 200));
          panel.add(button);
          this.getContentPane().add(panel);
// display the frame
this.pack();
this.setVisible(true);
     public static void main(String args[]){
          JFrames frames = new JFrames();
}