如何在Java Swing中创建以下GUI？

我想用 Java Swing创建以下GUI.

由于我对Java Swing没有足够的经验,我不确定如何精确地重新创建该GUI.

我尝试过使用GridLayout,它看起来像这样：

我已经尝试过其他的LayoutManagers,但由于我的经验不足,我无法获得任何与我想要实现的GUI类似的东西.

我可能不得不使用GridBagLayout,但我已经尝试过,根本无法完成任何事情.
我不确定如何使用GridBagLayout,特别是因为所需的colums数量存在差异(2,2和3).

以下是用于创建第二个GUI的代码：

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

public class GUITest extends JFrame {

public GUITest() {
    super("Testing Title");
    Container pane = getContentPane();

    pane.setLayout(new GridLayout(3,1));

    pane.add(getHeader());
    pane.add(getTextArea());
    pane.add(getButtonPanel());

}

public JComponent getHeader() {
    JPanel labelPanel = new JPanel();
    labelPanel.setLayout(new GridLayout(1,2));
    labelPanel.setSize(getPreferredSize());

    JLabel labelLocal = new JLabel("Left value: ",JLabel.CENTER);
    JLabel labelDB = new JLabel("Right value: ",JLabel.CENTER);

    labelPanel.add(labelLocal);
    labelPanel.add(labelDB);

    return labelPanel;
}

public JComponent getTextArea() {
    JPanel textPanel = new JPanel();
    textPanel.setLayout(new GridLayout(1,2,5,0));

    JTextArea testTextArea = new JTextArea();
    testTextArea.setEditable(false);
    JScrollPane sp1 = new JScrollPane(testTextArea); 

    JTextArea testTextArea2 = new JTextArea();
    JScrollPane sp2 = new JScrollPane(testTextArea2); 
    testTextArea2.setEditable(false);

    testTextArea.setText("Hello Hello HellonTesting!ntesterinontesteroni");
    testTextArea2.setText("Hello Hello HellonTesting!ntestnABC123ncdef123nhijk123");

    textPanel.add(sp1);
    textPanel.add(sp2);
    return textPanel;
}

public JComponent getButtonPanel() {
    JPanel inner = new JPanel();
    inner.setLayout(new FlowLayout((FlowLayout.CENTER),100));
    inner.add(new JButton("Do something"));
    inner.add(new JButton("Do something different"));
    inner.add(new JButton("Do something even more different"));
    return inner;
}

public static void main(String[] args) {
    GUITest e = new GUITest();
    e.setSize(700,500);
    e.setVisible(true);
    e.setResizable(false);
    e.setDefaultCloSEOperation(EXIT_ON_CLOSE);
    e.setLocationRelativeTo(null);
}
}

我很感谢任何支持！

解决方法

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

     public class GUITest extends JFrame {

         public GUITest() {

              super("Testing Title");  
              Container pane = getContentPane();  
              pane.setLayout(new BorderLayout());//Modified Layout to BorderLayout  
              pane.add(getHeader(),BorderLayout.NORTH); //BorderLayout.NORTH
              pane.add(getTextArea(),BorderLayout.CENTER);//BorderLayout.CENTER
              pane.add(getButtonPanel(),BorderLayout.SOUTH);//BorderLayout.SOUTH

        }  

         public JComponent getHeader() {  

             JPanel labelPanel = new JPanel();  
             labelPanel.setLayout(new GridLayout(1,2));  
             labelPanel.setSize(getPreferredSize());    
             JLabel labelLocal = new JLabel("Left value: ",JLabel.CENTER);  
             JLabel labelDB = new JLabel("Right value: ",JLabel.CENTER);  
             labelPanel.add(labelLocal);
             labelPanel.add(labelDB);
             return labelPanel;

         }

     public JComponent getTextArea() {  

           JPanel textPanel = new JPanel();    
           textPanel.setLayout(new GridLayout(1,0));
           JTextArea testTextArea = new JTextArea();
           testTextArea.setEditable(false);
           JScrollPane sp1 = new JScrollPane(testTextArea); 
           JTextArea testTextArea2 = new JTextArea();
           JScrollPane sp2 = new JScrollPane(testTextArea2); 
           testTextArea2.setEditable(false);
           testTextArea.setText("Hello Hello HellonTesting!ntesterinontesteroni");
           testTextArea2.setText("Hello Hello HellonTesting!ntestnABC123ncdef123nhijk123");
           textPanel.add(sp1);
           textPanel.add(sp2);
           return textPanel;
   }

     public JComponent getButtonPanel() {

          JPanel inner = new JPanel();
          inner.setLayout(new FlowLayout());//Modified to standard FlowLayout  
          inner.add(new JButton("Do something"));  
          inner.add(new JButton("Do something different"));  
          inner.add(new JButton("Do something even more different"));  
          return inner;  

     }

     public static void main(String[] args) {  

          GUITest e = new GUITest();  
          e.pack(); //Modified setSize(700,500) to pack()  
          e.setVisible(true);  
          e.setResizable(false);  
          e.setDefaultCloSEOperation(EXIT_ON_CLOSE);  
          e.setLocationRelativeTo(null);  
     }  
}

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