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Is there any code that I can use to pass value of selected radio button to another frame?

This is my code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class bookBatman extends JFrame implements ActionListener {

    private JLabel jlbName, jlbTime, jlbPic, jlbDate, jlbDescription, jlbAuthor, jlbDateProduce, jlbDirector, jlbActor, jlbRate, jlbNoOfTicket, jlbPrice, jlbTotal;
    private JTextField jtfNoOfTicket;
    private JRadioButton jr1, jr2, jr3, jr4, jr5, jr6, jr7, jr8, jr9, jr10;
    private JButton jTotal, jBook, jCancel;

    Font f = new Font("Times",Font.BOLD,30);

    public bookBatman () {


        setLayout(null); //set LayoutManager

        // initialized the label
        jlbName = new JLabel ("Batman The Dark Knight");
        jlbTime = new JLabel ("Time :");
        jlbPrice = new JLabel ("RM 9.00");
        jlbPic = new JLabel ();
        jlbPic.setIcon(new ImageIcon("C:\\Users\\User\\Desktop\\OOP project\\img\\icon\\Batman.jpg"));
        jlbTotal = new JLabel (" Total : RM 9.00");



        // add all the label on the frame
        add(jlbName);
        add(jlbPic);
        add(jlbTime);
        add(jlbPrice);
        add(jlbTotal);


        // set all the label positions
        jlbName.setBounds(85, 78, 300, 18); //(int x, int y, int width, int height)
        jlbPic.setBounds(74, 101, 180, 288);
        jlbTime.setBounds(74, 400, 60, 18);
        jlbPrice.setBounds (270, 477, 60, 18);
        jlbTotal.setBounds (339, 475, 300, 22);


        // initialized the textfield
        jlbAuthor = new JLabel ("Directed by Christopher Nolan");
        jlbDateProduce = new JLabel ("Date : 17 July 2008");
        jlbDirector = new JLabel ("Author : Jonathan Nolan, Christopher Nolan");
        jlbActor = new JLabel ("Main Actor : Christian Bale");
        jlbRate = new JLabel ("Movie Rate : 13 PG (Parental Guidance)");
        jlbNoOfTicket = new JLabel ("Number of Ticket :");


        // add all the textfield on the frame
        add(jlbAuthor);
        add(jlbDateProduce);
        add(jlbDirector);
        add(jlbActor);
        add(jlbRate);
        add(jlbNoOfTicket);


        // set the textfield position
        jlbAuthor.setBounds (273, 102, 300, 18);
        jlbDateProduce.setBounds (273, 132, 300, 18);
        jlbDirector.setBounds (273, 162, 300, 18);
        jlbActor.setBounds (273, 192, 300, 18);
        jlbRate.setBounds (273, 222, 300, 18);
        jlbNoOfTicket.setBounds (77, 478, 150, 18);


        // initialize the Radio Button
        jr1 = new JRadioButton ("11.40 AM");
        jr2 = new JRadioButton ("12.00 PM");
        jr3 = new JRadioButton ("1.40 PM");
        jr4 = new JRadioButton ("3.40 PM");
        jr5 = new JRadioButton ("5.40 PM");
        jr6 = new JRadioButton ("7.00 PM");
        jr7 = new JRadioButton ("9.00 PM");
        jr8 = new JRadioButton ("10.40 PM");
        jr9 = new JRadioButton ("11.40 PM");
        jr10 = new JRadioButton ("12.40 AM");


        // add all the radion button
        add(jr1);
        add(jr2);
        add(jr3);
        add(jr4);
        add(jr5);
        add(jr6);
        add(jr7);
        add(jr8);
        add(jr9);
        add(jr10);


        // set the radion button positions
        jr1.setBounds (75, 423, 100, 24);
        jr2.setBounds (172, 423, 100, 24);
        jr3.setBounds (269, 423, 100, 24);
        jr4.setBounds (366, 423, 100, 24);
        jr5.setBounds (463, 423, 100, 24);
        jr6.setBounds (75, 447, 100, 24);
        jr7.setBounds (172, 447, 100, 24);
        jr8.setBounds (269, 447, 100, 24);
        jr9.setBounds (366, 447, 100, 24);
        jr10.setBounds (463, 447, 100, 24);


        // group the button
        ButtonGroup group = new ButtonGroup ();
        group.add(jr1);
        group.add(jr2);
        group.add(jr3);
        group.add(jr4);
        group.add(jr5);
        group.add(jr6);
        group.add(jr7);
        group.add(jr8);
        group.add(jr9);
        group.add(jr10);

        jr1.setActionCommand("radio1"); // for ButtonGroup
        String sel = group.getSelection().getActionCommand();


        // initialize all the button
        jTotal = new JButton ("Total");
        jBook = new JButton ("Book Now");
        jCancel = new JButton ("Cancel");


        // add all the button
        add (jTotal);
        add (jBook);
        add (jCancel);


        // set the button positions
        jTotal.setBounds (191, 519, 83, 28);
        jBook.setBounds (285, 519, 93, 28);
        jCancel.setBounds (389, 519, 83, 28);


        // add actionlistener
        jTotal.addActionListener (this);
        jBook.addActionListener (this);
        jCancel.addActionListener (this);


        // initialize all text field
        jtfNoOfTicket = new JTextField (15);

        // add all the text field
        add (jtfNoOfTicket);


        // set the text field positions
        jtfNoOfTicket.setBounds (200, 477, 56, 22);
    }



    public void actionPerformed(ActionEvent e){
                if((e.getSource() == jTotal)) {

                    double price = 12.00;
                    double number = (Integer.parseInt(jtfNoOfTicket.getText().trim()));
                    double total = 0.0;
                    total = price * number;
                    jlbTotal.setText(" Total : RM" + total +"0");
                }

                if((e.getSource() == jBook)) {


                    String name = jlbName.getText ();
                    String date = jlbDateProduce.getText ();
                    String time = jr1.getText ();
                    int number = (Integer.parseInt(jtfNoOfTicket.getText().trim()));
                    String total = jlbTotal.getText ();
                    String price = jlbPrice.getText ();

                    //Passing
                    ticketReservation frame = new ticketReservation(name, date, time, price, total, String.valueOf(number));
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setTitle("Ticket Reservation"); //set title of the window
                    frame.setSize(800,600); //size of the window
                    frame.setVisible(true); //visible the window
                    frame.setLocationRelativeTo (null); //center the window

                }

                if((e.getSource() == jCancel))  {

                    listOfMovies frame = new listOfMovies ();
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setTitle("List of Movies"); //set title of thewindow
                    frame.setSize(800,600); //size of the window
                    frame.setVisible(true); //visible the window
                    frame.setLocationRelativeTo (null); //center the window

                }
        }

        public static void main (String [] args) {

            bookBatman frame = new bookBatman ();
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setTitle("Book Batman : The Dark Knight"); //set title of thewindow
            frame.setSize(800,600); //size of the window
            frame.setVisible(true); //visible the window
            frame.setLocationRelativeTo (null); //center the window

        }


}
4

1 回答 1

4

不要将其视为从一个 GUI 向另一个 GUI 传递信息，而应将其视为最基本的 OOP 形式：将对象状态从一个对象传递到另一个对象。我们经常为此目的使用公共访问器方法（即“getter”方法），这也可以在这里工作。

您的 ButtonGroup 对象将保存所选 JRadioButton 的 ButtonModel（如果没有选择，则为 null），因此您可以从模型中获取信息并从您的 getter 方法中返回它。

顺便说一句，您的代码有很多冗余可以通过使用数组和使用适当的布局管理器来减少。

编辑 1：
例如
，假设我们创建了一个 JPanel，其中包含一堆 JRadioButtons：

import java.awt.GridLayout;
import javax.swing.*;

class RadioBtnDialogPanel extends JPanel {
   private static final String[] BUTTON_TEXTS = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday"};
   private ButtonGroup buttonGroup = new ButtonGroup();

   public RadioBtnDialogPanel() {
      setLayout(new GridLayout(0, 1));  // give JPanel a decent layout

      // create radio buttons, add to button group and to JPanel
      for (String buttonText : BUTTON_TEXTS) {
         JRadioButton radioBtn = new JRadioButton(buttonText);
         radioBtn.setActionCommand(buttonText); // set the actionCommand here
         buttonGroup.add(radioBtn);
         add(radioBtn);
      }
   }

   // getter or accessor method to get selected JRadioButton's actionCommand text
   public String getSelectedButtonText() {
      ButtonModel model = buttonGroup.getSelection();
      if (model == null) { // no radiobutton selected
         return "";
      } else {
         return model.getActionCommand();
      }
   }
}

我们还给它一个公共的getter方法，它查询ButtonGroup的状态以找出选择了哪个按钮模型，然后返回它的actionCommand，一个保存描述单选按钮的文本的String（这里它与文本相同）单选按钮）。

然后，我们可以在主 GUI 的 JOptionPane 中显示此 JPanel，在 JOptionPane 完成后，通过调用其 getSelectedButtonText() 方法查询上面的对象： 

import java.awt.event.*;
import javax.swing.*;

public class RadioButtonInfo extends JPanel {
   private RadioBtnDialogPanel radioBtnDlgPanel = new RadioBtnDialogPanel();
   private JTextField textfield = new JTextField(10);

   public RadioButtonInfo() {
      JButton getDayOfWeekBtn = new JButton("Get Day Of Week");
      getDayOfWeekBtn.addActionListener(new ActionListener() {
         @Override
         public void actionPerformed(ActionEvent e) {
            getDayOfWeekActionPerformed();
         }
      });
      textfield.setFocusable(false);

      add(getDayOfWeekBtn);
      add(textfield);
   }

   private void getDayOfWeekActionPerformed() {
      // display a JOptionPane that holds the radioBtnDlgPanel
      int result = JOptionPane.showConfirmDialog(this, radioBtnDlgPanel, "Select Day Of Week", JOptionPane.OK_CANCEL_OPTION);
      if (result == JOptionPane.OK_OPTION) { // if use presses "OK" get the selected radio button text
         // here we call the getter method  to get the selected button text
         String selectedButtonText = radioBtnDlgPanel.getSelectedButtonText();  
         textfield.setText(selectedButtonText); // and put it into a JTextField
      }
   }

   private static void createAndShowUI() {
      JFrame frame = new JFrame("RadioButtonInfo");
      frame.getContentPane().add(new RadioButtonInfo());
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.pack();
      frame.setLocationRelativeTo(null);
      frame.setVisible(true);
   }

   public static void main(String[] args) {
      java.awt.EventQueue.invokeLater(new Runnable() {
         public void run() {
            createAndShowUI();
         }
      });
   }
}
于 2011-04-23T15:25:51.187 回答