Отображение JPanels и его компонентов на вкладке в JFrame с использованием каждой вкладки в качестве отдельного класса

Question

Пожалуйста, мне нужна помощь. Я пытаюсь создать JFrame для вкладок, и каждая вкладка будет отображать одну панель. Каждая панель содержит кнопки и Textfields. Панели должны показывать отдельный класс на каждой вкладке, но панели отображаются без кнопок и Textfields. Любая помощь будет оценена.

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

public class CELTool extends JFrame implements ActionListener {

   JTabbedPane tab;

   public CELTool() {
      JFrame frame = new JFrame("CELTool");
      tab = new JTabbedPane();
      frame.add(tab, BorderLayout.CENTER);

      Illustration etool = new Illustration();
      tab.add("Illustration", etool);

      Encrypt crypt = new Encrypt();
      tab.add("Crypt", crypt);

      Decrypt decrypt = new Decrypt();

      tab.add("Decrypt", decrypt);

      frame.setSize(500, 750);
      frame.pack();
      frame.setVisible(true);
      frame.setDefaultCloseOperation(EXIT_ON_CLOSE);

   }

   public void actionPerformed(ActionEvent ae) {
   }

   public static void main(String[] args) {
      CELTool clt = new CELTool();//        
      clt.setSize(400,500);     
      clt.setVisible(true);
   }
}

class Illustration extends JPanel {

   static String[] strPlaintext = {"Original Input", "InitialPermutation", "First RIound ", "Second Round",
                                   "Third Round", "Fourth Round", "Fifth Round", "Sixth Round", "Seventh Round",
                                   "Eight Round", "Ninth Round", "Tenth Round", "Eleventh Round", "Twelveth Round",
                                   "Thirteenth Round", "Fourtheenth Round", "Fithteenth Round", "Sixtheenth Round",
                                   "Final Round", "Ciphertext"};
   static String[] str2 = {"Key", "Round Sixteen", "Round Fithteen", "Round Fourteen", "Round Thirteen", "Round Twelve",
                           "Round Eleven", "Round Ten",};
   int leading, ascent, height, width;
   int leading2, ascent2, height2, width2;
   int xcoord = 40, ycoord = 100, xcoord2 = 600, ycoord2 = 60;
   static final int BORDER = 5;

   public void paint(Graphics gr) {
      super.paint(gr);
      int i = 0, xcoord = 40, ycoord = 100, xcoord2 = 600, ycoord2 = 60;


      leading = gr.getFontMetrics().getLeading();
      ascent = gr.getFontMetrics().getAscent();
      height = gr.getFontMetrics().getHeight();
      width = gr.getFontMetrics().stringWidth(strPlaintext[i]);

      for (i = 0; i < strPlaintext.length; i++) {
         gr.drawString(strPlaintext[i], xcoord, ycoord);
         leading = gr.getFontMetrics().getLeading();
         ascent = gr.getFontMetrics().getAscent();
         height = gr.getFontMetrics().getHeight();
         width = gr.getFontMetrics().stringWidth(strPlaintext[i]);
         gr.drawRect(xcoord - BORDER, ycoord - (ascent + leading + BORDER), width + 2 * BORDER, height + 2 * BORDER);
         ycoord += 40;

      }

   }
}

class Encrypt extends JPanel {

   public Encrypt() {
      JPanel panel5 = new JPanel();
      panel5.setLayout(new GridBagLayout());    //panel5.setLayout((LayoutManager) new GridBagConstraints());

      GridBagConstraints gbc = new GridBagConstraints();
      gbc.gridx = 0;
      gbc.gridy = 0;
      panel5.add(new JLabel("Input plaintext text"), gbc);

      gbc.gridx = 1;
      gbc.gridy = 0;
      panel5.add(new JTextField("0123456789ABCDEF", 20), gbc);

      gbc.gridx = 0;
      gbc.gridy = 2;
      panel5.add(new JLabel("Input text in Hex"), gbc);

      gbc.gridx = 1;
      gbc.gridy = 2;
      panel5.add(new JTextField("0123456789ABCDEF", 20), gbc);

      panel5.setSize(200, 300);
      panel5.setVisible(true);
   }
}

class Decrypt extends JPanel {

   JPanel decPanel;
   JTextField dectxt;

   public Decrypt() {
      decPanel = new JPanel();
      decPanel.add(new JLabel("Cipher"));
      decPanel.add(new JTextField());
      decPanel.add(new JLabel("key"));
      decPanel.add(new JTextField());
      decPanel.add(new JLabel("Plaintext"));
      decPanel.add(new JTextField());
      decPanel.add(new JButton("Decrypt"));
      decPanel.add(new JButton("Reset"));
      decPanel.validate();

   }
}

Answer 1

Это совсем не полное исправление, но, по крайней мере, что-то, что поможет вам двигаться в правильном направлении. Тщательно сравните его с вашим кодом, чтобы увидеть различия. Надеюсь, это поможет.

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

public class CELTool extends JFrame implements ActionListener {

   JTabbedPane tab;
   Illustration etool;
   Encrypt encrypt;
   Decrypt decrypt;

   private CELTool() {
      super("CELTool");

      tab = new JTabbedPane();
      etool = new Illustration();
      encrypt = new Encrypt();
      decrypt = new Decrypt();

      tab.add("Illustration", etool);
      tab.add("Crypt", encrypt);
      tab.add("Decrypt", decrypt);
      this.add(tab, BorderLayout.CENTER);

      this.setDefaultCloseOperation(EXIT_ON_CLOSE);
      this.setSize(500, 750);
      this.pack();
      this.setLocationRelativeTo(null);
      this.setVisible(true);
   }

   public void actionPerformed(ActionEvent ae) {
      // why blank?
   }

   public static void main(String[] args) {
      new CELTool();      
   }


private class Illustration extends JPanel {

   public Illustration(){

   }

   private final String[] strPlaintext = {"Original Input", "InitialPermutation", "First RIound ", "Second Round",
                                   "Third Round", "Fourth Round", "Fifth Round", "Sixth Round", "Seventh Round",
                                   "Eight Round", "Ninth Round", "Tenth Round", "Eleventh Round", "Twelveth Round",
                                   "Thirteenth Round", "Fourtheenth Round", "Fithteenth Round", "Sixtheenth Round",
                                   "Final Round", "Ciphertext"};
   private final String[] str2 = {"Key", "Round Sixteen", "Round Fithteen", "Round Fourteen", "Round Thirteen", "Round Twelve",
                           "Round Eleven", "Round Ten",};
   int leading, ascent, height, width;
   int xcoord = 40, ycoord = 100, xcoord2 = 600, ycoord2 = 60;
   private final int BORDER = 5;

   public void paintComponent(Graphics gr) {
      super.paintComponent(gr);
      int i = 0, xcoord = 40, ycoord = 100, xcoord2 = 600, ycoord2 = 60;

      leading = gr.getFontMetrics().getLeading();
      ascent = gr.getFontMetrics().getAscent();
      height = gr.getFontMetrics().getHeight();

      for (i = 0; i < strPlaintext.length; i++) {
         gr.drawString(strPlaintext[i], xcoord, ycoord);
         width = gr.getFontMetrics().stringWidth(strPlaintext[i]);
         gr.drawRect(xcoord - BORDER, ycoord - (ascent + leading + BORDER), width + 2 * BORDER, height + 2 * BORDER);
         ycoord += 40;
      }
   }
}

private class Encrypt extends JPanel {

   public Encrypt() {
      this.setLayout(new GridBagLayout());
      GridBagConstraints gbc = new GridBagConstraints();
      gbc.gridx = 0;
      gbc.gridy = 0;
      this.add(new JLabel("Input plaintext text"), gbc);

      gbc.gridx = 1;
      gbc.gridy = 0;
      this.add(new JTextField("0123456789ABCDEF", 20), gbc);

      gbc.gridx = 0;
      gbc.gridy = 2;
      this.add(new JLabel("Input text in Hex"), gbc);

      gbc.gridx = 1;
      gbc.gridy = 2;
      this.add(new JTextField("0123456789ABCDEF", 20), gbc);

      this.setPreferredSize(new Dimension(200, 300));
   }
}

private class Decrypt extends JPanel {

   public Decrypt() {
      this.setLayout(new GridLayout(0,1));
      this.add(new JLabel("Cipher"));
      this.add(new JTextField());
      this.add(new JLabel("key"));
      this.add(new JTextField());
      this.add(new JLabel("Plaintext"));
      this.add(new JTextField());
      this.add(new JButton("Decrypt"));
      this.add(new JButton("Reset"));
      this.validate();
   }
 }
}