Question

I would like to ask you how can I insert JPanel into JOptionPane and retrieve all the information from these JTextFields later on.
For example I have something like this:

JPanel jp = new JPanel();
jp.setLayout(new GridLayout(0,1);
JPanel up = new JPanel();
JPanel down = new JPanel();
jp.add(up);jp.add(down);
JTextField jt1 = new TextField("habababa1"); jt2 = new JTextField("habababa2");
JRadioButton jrb1 = new JRadioButton("JRB1");
up.add(jt1);down.add(jt2); down.add(jrb1);

How do I get data from radioButton etc.? After I click ok.

Answer 1

You need to implement an event lister. Here is a snippet from http://www.java2s.com/Tutorial/Java/0240__Swing/ListeningtoJRadioButtonEventswithaChangeListener.htm:

import java.awt.GridLayout;

import javax.swing.AbstractButton;
import javax.swing.ButtonGroup;
import javax.swing.ButtonModel;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class JRadioButtonChangeListener {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Grouping Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel panel = new JPanel(new GridLayout(0, 1));

    ButtonGroup group = new ButtonGroup();
    JRadioButton aRadioButton = new JRadioButton("A");
    JRadioButton bRadioButton = new JRadioButton("B");

    ChangeListener changeListener = new ChangeListener() {
      public void stateChanged(ChangeEvent changEvent) {
        AbstractButton aButton = (AbstractButton)changEvent.getSource();
        ButtonModel aModel = aButton.getModel();
        boolean armed = aModel.isArmed();
        boolean pressed = aModel.isPressed();
        boolean selected = aModel.isSelected();
        System.out.println("Changed: " + armed + "/" + pressed + "/" +
          selected);
      }
    };

    panel.add(aRadioButton);
    group.add(aRadioButton);
    panel.add(bRadioButton);
    group.add(bRadioButton);

    aRadioButton.addChangeListener(changeListener);
    bRadioButton.addChangeListener(changeListener);

    frame.add(panel);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
  
}