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Hard to explain. Deals with frames and Action Listener

Cameron Schultz
Greenhorn

Joined: May 08, 2006
Posts: 1
Heres my problem: The getChoice method (OptionDialogFrame1 class) is called before i can select a radio button. How can i make it so i have time to choose a radio button before the value is returned? The below code compiles correctly, you can copy/paste it into a code writing program.

public class IronTomRed {

public static void main(String[] args) {

// Create application frame.
IronTomRedFrame frame = new IronTomRedFrame();

// Show frame.
frame.show();
}
}

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;

import javax.swing.*;
import javax.swing.border.*;
import java.io.*;

/**
* @(#)IronTomRed.java
*
* JFC Sample application
*
* @author
* @version 1.00 06/04/05
*/
public class IronTomRedFrame extends JFrame{
String choice = "x";
/**
* The constructor.
*/
public IronTomRedFrame() {

BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
JMenuBar menuBar = new JMenuBar();
JMenu menuFile = new JMenu();
JMenu menuHelp = new JMenu();
JMenuItem menuFileExit = new JMenuItem();
JMenuItem menuFileNew = new JMenuItem();
JMenuItem menuFileLoad = new JMenuItem();
JMenuItem menuHelpHelp = new JMenuItem();
JMenuItem menuHelpAbout = new JMenuItem();

//icon
Toolkit kit = Toolkit.getDefaultToolkit();
Image img = kit.getImage("G:\\IronTomRed\\src\\icon.gif");
setIconImage(img);


menuFile.setText("File");
menuHelp.setText("Help");
menuFileNew.setText("New Game");
menuFileLoad.setText("Load Game");
menuFileExit.setText("Exit");
menuHelpHelp.setText("Instructions");
menuHelpAbout.setText("About");

// Add action listener.for the menu button
menuFileExit.addActionListener
(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
IronTomRedFrame.this.windowClosed();
}
}
);
menuFileNew.addActionListener
(
new ActionListener() {
public void actionPerformed(ActionEvent e) {

String userName = JOptionPane.showInputDialog("Enter Ye Name, Mate!");
int island=0;

String islandLocation="x";
int villageLocation=0;
int harborLocation=0;
int islandLodgingOption=0;
int pubOption=0;
JOptionPane.showMessageDialog(null,"Story Frame 1","What to do with your scummy self...",JOptionPane.PLAIN_MESSAGE,new ImageIcon("G:\\IronTomRed\\src\\icon.gif"));
JOptionPane.showMessageDialog(null,"Story Frame 2","What to do with your scummy self...",JOptionPane.PLAIN_MESSAGE,new ImageIcon("G:\\IronTomRed\\src\\icon.gif"));
JOptionPane.showMessageDialog(null,"Story Frame 3","What to do with your scummy self...",JOptionPane.PLAIN_MESSAGE,new ImageIcon("G:\\IronTomRed\\src\\icon.gif"));
ButtonPanel islandOneOptions = new ButtonPanel("Island 1 Options!",new String[]{"Shipyard","Village"});
OptionDialogFrame1 islandOne = new OptionDialogFrame1("Welcome To Island One",islandOneOptions);
islandOne.show();
islandLocation = islandOne.getChoice();
if(islandLocation.equals("Village")){
ButtonPanel villageOptions = new ButtonPanel("Village Options!",new String[]{"Pub","Blacksmith","Stupidity"});
OptionDialogFrame1 villageOne = new OptionDialogFrame1("Welcome to the village!",villageOptions);
villageOne.show();
islandOne.hide();
}
if(islandLocation.equals("Shipyard")){
//ButtonPanel villageOptions = new ButtonPanel("Shipyard Options!",new String[]{"xxx","xxx","Stupidity"});
//OptionDialogFrame villageOne = new OptionDialogFrame("Welcome to the village!",villageOptions);
//villageOne.show();
//islandOne.hide();
}
System.out.println(islandLocation);
}


}
);
menuFileLoad.addActionListener
(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
//old game loaded
}
}
);
menuHelpHelp.addActionListener
(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(null,"Instructions for yon game.","What to do with your scummy self...",JOptionPane.PLAIN_MESSAGE,new ImageIcon("G:\\IronTomRed\\src\\icon.gif"));
}
}
);
menuHelpAbout.addActionListener
(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(null,"Written by Benson "+'\n'+"Cameron "+'\n'+"Ben "+'\n'+"and Kenneth, the First Jew-Pirate ever Invented","Pay homage to thine infinitely betters...",JOptionPane.PLAIN_MESSAGE,new ImageIcon("G:\\IronTomRed\\src\\icon.gif"));
}
}
);
menuFile.add(menuFileNew);
menuFile.add(menuFileLoad);
menuFile.add(menuFileExit);

menuHelp.add(menuHelpHelp);
menuHelp.add(menuHelpAbout);

menuBar.add(menuFile);
menuBar.add(menuHelp);

setTitle("Iron Tom Red's 7th Sojourn II");
setJMenuBar(menuBar);
setSize(new Dimension(400, 400));

// Add window listener.
this.addWindowListener
(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
IronTomRedFrame.this.windowClosed();
}
}
);
}

/**
* Shutdown procedure when run as an application.
*/
protected void windowClosed() {

// TODO: Check if it is safe to close the application

// Exit application.
System.exit(0);
}
}
class ButtonPanel extends JPanel{
/*
*helper method
*makes a new optionpanel
*/
public ButtonPanel(String title, String[] options){
setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(),title));
setLayout(new BoxLayout(this,BoxLayout.Y_AXIS));
group = new ButtonGroup();
for(int i=0;i<options.length;i++){
JRadioButton b = new JRadioButton(options[i]);
b.setActionCommand(options[i]);
add(b);
group.add(b);
b.setSelected(i==0);
int length = options.length;
}
}
public String getSelection(){
return group.getSelection().getActionCommand();
}
private ButtonGroup group;
}
class OptionDialogFrame1 extends JFrame{
String choice = "s";
boolean pressed = false;
public OptionDialogFrame1(String title, final ButtonPanel buttons){

System.out.println(choice);
setTitle(title);
setSize(200,200);
JPanel optionPanel = new JPanel();
JButton ok = new JButton("OK");
optionPanel.add(buttons);
optionPanel.add(ok);
optionPanel.setVisible(true);
ButtonPanel villageOptions = new ButtonPanel("Village Options!",new String[]{"Pub","Blacksmith","Stupidity"});

if(choice.equals("Village"))
optionPanel.add(villageOptions);
Container contentPane = getContentPane();
contentPane.add(optionPanel, BorderLayout.CENTER);
contentPane.setVisible(true);
ok.addActionListener
(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
choice = buttons.getSelection();

}
}
);
}

public String getChoice(){

return choice;
}
}
[ May 08, 2006: Message edited by: Cameron Schultz ]
Michael Dunn
Ranch Hand

Joined: Jun 09, 2003
Posts: 4632
> class OptionDialogFrame1 extends JFrame{

change this so it extends JDialog and set its modal state to true
Note: because of your actionListener, do not use super(..,true)

this is the order in the constructor

ok.addActionListener...
setModal(true);
contentPane.setVisible(true);
}//end of constructor
 
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