GridLayout/BorderLayout 不工作答案

【问题标题】：GridLayout/BorderLayout Not WorkingGridLayout/BorderLayout 不工作
【发布时间】：2014-12-01 15:37:16
【问题描述】：

我需要制作一个最终看起来像这样的程序：

到目前为止，我的代码是已发布的内容，我似乎无法理解如何使它看起来与我提供的图像完全一样。我真的不知道我还能做什么，我已经尝试四处寻找解决方案，但我无法将这些信息与这些信息结合起来以使其协同工作。

所以，我希望其他人可以在这里帮助我，不胜感激！ :D

import java.awt.*;     // Needed for BorderLayout class  
import javax.swing.*;  // Needed for Swing classes  

/** 
   This class demonstrates how JPanels can be nested 
   inside each region of a content pane governed by 
   a BorderLayout manager. 
*/  

public class BorderPanelWindow extends JFrame  
{  
   /** 
      Constructor 
   */  

   public BorderPanelWindow()  
   {  
      // Set the title bar text.  
      setTitle("Border Layout");  

      // Specify an action for the close button.  
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  

      // Add a BorderLayout manager to the content pane.  
      setLayout(new BorderLayout());  

      // Create five panels.  
      JPanel panel1 = new JPanel();  
      JPanel panel2 = new JPanel();  
      JPanel panel3 = new JPanel();  
      JPanel panel4 = new JPanel();  
      panel4.setLayout(new GridLayout(3,3));  
      JPanel panel5 = new JPanel();  
      panel5.setLayout(new GridLayout(3,3));  
      JPanel panel6 = new JPanel();  
      JPanel panel7 = new JPanel();  
      JPanel panel8 = new JPanel();  
      JPanel panel9 = new JPanel();  
      JPanel panel10 = new JPanel();  


      // Create five buttons.  
      JButton button1 = new JButton("Button 1");  
      JButton button2 = new JButton("Button 2");  
      JButton button3 = new JButton("Button 3");  
      JButton button4 = new JButton("Button 4");  
      JButton button5 = new JButton("Button 5");  
      JButton button6 = new JButton("Button 6");  
      JButton button7 = new JButton("Button 7");  
      JButton button8 = new JButton("Button 8");  
      JButton button9 = new JButton("Button 9");  
      JButton button10 = new JButton("Button 10");  

      //Add buttons to panel4  
      panel4.add(button1);  
      panel4.add(button2);  
      panel4.add(button3);  
      panel4.add(button4);  
      panel4.add(button5);  
      panel4.add(button6);  


      // Add the buttons to the panels.  
      panel7.add(button7);  
      panel8.add(button8);  
      panel9.add(button9);  
      panel10.add(button10);  

      // Add the five panels to the content pane.  
      add(panel7, BorderLayout.NORTH);  
      add(panel8, BorderLayout.SOUTH);  
      add(panel9, BorderLayout.EAST);  
      add(panel4, BorderLayout.WEST);  
      //add(panel10, BorderLayout.WEST);  
      add(panel5, BorderLayout.CENTER);  

      // Pack and display the window.  
      pack();  
      setVisible(true);  
   }  

   /** 
      The main method creates an instance of the 
      BorderPanelWindow class, causing it to display 
      its window. 
   */  

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

更新

所以这就是我认为答案建议我做的事情。就像我说的，当我在那里也有按钮 10 时我看不到我的 panel4，我确定这是我没有看到但仍然存在的东西。

import java.awt.*;     // Needed for BorderLayout class
import javax.swing.*;  // Needed for Swing classes

/**
   This class demonstrates how JPanels can be nested
   inside each region of a content pane governed by
   a BorderLayout manager.
*/

public class BorderPanelWindow extends JFrame
{
   /**
      Constructor
   */

   public BorderPanelWindow()
   {
      // Set the title bar text.
      setTitle("Border Layout");

      // Specify an action for the close button.
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      // Add a BorderLayout manager to the content pane.
      setLayout(new BorderLayout());

      // Create five panels.
      JPanel panel1 = new JPanel();
      JPanel panel2 = new JPanel();
      JPanel panel3 = new JPanel();
      JPanel panel4 = new JPanel();
      panel4.setLayout(new GridLayout(3,3));
      JPanel panel5 = new JPanel();
      panel5.setLayout(new GridLayout(3,3));
      JPanel panel6 = new JPanel();
      JPanel panel7 = new JPanel();
      JPanel panel8 = new JPanel();
      JPanel panel9 = new JPanel();
      JPanel panel10 = new JPanel();


      // Create five buttons.
      JButton button1 = new JButton("Button 1");
      JButton button2 = new JButton("Button 2");
      JButton button3 = new JButton("Button 3");
      JButton button4 = new JButton("Button 4");
      JButton button5 = new JButton("Button 5");
      JButton button6 = new JButton("Button 6");
      JButton button7 = new JButton("Button 7");
      JButton button8 = new JButton("Button 8");
      JButton button9 = new JButton("Button 9");
      JButton button10 = new JButton("Button 10");
      JButton button11 = new JButton("Button 11");
      JButton button12 = new JButton("Button 12");
      JButton button13 = new JButton("Button 13");
      JButton button14 = new JButton("Button 14");
      JButton button15 = new JButton("Button 15");
      JButton button16 = new JButton("Button 16");
      JButton button17 = new JButton("Button 17");
      JButton button18 = new JButton("Button 18");

      //Add buttons to panel4
      panel4.add(button1);
      panel4.add(button2);
      panel4.add(button3);
      panel4.add(button4);
      panel4.add(button5);
      panel4.add(button6);

      //Add buttons to panel5
      panel5.add(button11);
      panel5.add(button12);
      panel5.add(button13);
      panel5.add(button14);
      panel5.add(button15);
      panel5.add(button16);
      panel5.add(button17);
      panel5.add(button18);


      // Add the buttons to the panels.
      panel7.add(button7);
      panel8.add(button8);
      panel9.add(button9);
      panel10.add(button10);

      // Add the five panels to the content pane.
      add(panel7, BorderLayout.NORTH);
      add(panel8, BorderLayout.SOUTH);
      add(panel9, BorderLayout.EAST);
      add(panel4, BorderLayout.WEST);
      add(panel10, BorderLayout.WEST);
      add(panel5, BorderLayout.CENTER);

      // Pack and display the window.
      pack();
      setVisible(true);
   }

   /**
      The main method creates an instance of the
      BorderPanelWindow class, causing it to display
      its window.
   */

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

更新2

所以现在我对它进行了一些改进，并尝试按照你说的做，但现在看起来更糟了，所以肯定有什么我没有完全理解的东西，哈哈。希望你能看到我的错误。

import java.awt.*;     // Needed for BorderLayout class
import javax.swing.*;  // Needed for Swing classes

/**
   This class demonstrates how JPanels can be nested
   inside each region of a content pane governed by
   a BorderLayout manager.
*/

public class BorderPanelWindow extends JFrame
{
   /**
      Constructor
   */

   public BorderPanelWindow()
   {
      // Set the title bar text.
      setTitle("Border Layout");

      // Specify an action for the close button.
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      // Add a BorderLayout manager to the content pane.
      setLayout(new BorderLayout());

      // Create five panels.
      JPanel panel1 = new JPanel();
      panel1.setLayout(new GridLayout(3,3));
      JPanel panel2 = new JPanel();
      panel2.setLayout(new GridLayout(3,3));
      JPanel panel3 = new JPanel();
      panel3.setLayout(new BorderLayout());
      JPanel panel4 = new JPanel();
      panel4.setLayout(new GridLayout(3,3));


      // Create five buttons.
      JButton button1 = new JButton("Button 1");
      JButton button2 = new JButton("Button 2");
      JButton button3 = new JButton("Button 3");
      JButton button4 = new JButton("Button 4");
      JButton button5 = new JButton("Button 5");
      JButton button6 = new JButton("Button 6");
      JButton button7 = new JButton("Button 7");
      JButton button8 = new JButton("Button 8");
      JButton button9 = new JButton("Button 9");
      JButton button10 = new JButton("Button 10");
      JButton button11 = new JButton("Button 11");
      JButton button12 = new JButton("Button 12");
      JButton button13 = new JButton("Button 13");
      JButton button14 = new JButton("Button 14");
      JButton button15 = new JButton("Button 15");
      JButton button16 = new JButton("Button 16");
      JButton button17 = new JButton("Button 17");
      JButton button18 = new JButton("Button 18");

      //Add buttons to panel1
      panel1.add(button1);
      panel1.add(button2);
      panel1.add(button3);
      panel1.add(button4);
      panel1.add(button5);
      panel1.add(button6);

      //Add buttons to panel2



      //Add the buttons to panel3
      panel3.add(button7);
      panel3.add(button8);
      panel3.add(button9);
      panel3.add(button10);

      //Add the buttons to panel4
      panel4.add(button11);
      panel4.add(button12);
      panel4.add(button13);
      panel4.add(button14);
      panel4.add(button15);
      panel4.add(button16);
      panel4.add(button17);
      panel4.add(button18);

      // Add the five panels to the content pane.
      add(panel1, BorderLayout.WEST);
      add(panel2, BorderLayout.EAST);
      add(panel3, BorderLayout.EAST);
      add(panel4, BorderLayout.CENTER);

      // Pack and display the window.
      pack();
      setVisible(true);
   }

   /**
      The main method creates an instance of the
      BorderPanelWindow class, causing it to display
      its window.
   */

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

更新3

好的，我现在更进一步了，最大的问题是按钮 11-18 没有出现在按钮 7-10 的中间。

import java.awt.*;     // Needed for BorderLayout class
import javax.swing.*;  // Needed for Swing classes

/**
   This class demonstrates how JPanels can be nested
   inside each region of a content pane governed by
   a BorderLayout manager.
*/

public class BorderPanelWindow extends JFrame
{
   /**
      Constructor
   */

   public BorderPanelWindow()
   {
      // Set the title bar text.
      setTitle("Border Layout");

      // Specify an action for the close button.
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      // Add a BorderLayout manager to the content pane.
      setLayout(new BorderLayout());

      // Create five panels.
      JPanel panel1 = new JPanel();
      panel1.setLayout(new GridLayout(2,3));
      JPanel panel2 = new JPanel();
      panel2.setLayout(new GridLayout(4,2));
      JPanel panel3 = new JPanel();
      panel3.setLayout(new BorderLayout());
      JPanel panel4 = new JPanel();
      panel4.setLayout(new GridLayout(1,2));


      // Create five buttons.
      JButton button1 = new JButton("Button 1");
      JButton button2 = new JButton("Button 2");
      JButton button3 = new JButton("Button 3");
      JButton button4 = new JButton("Button 4");
      JButton button5 = new JButton("Button 5");
      JButton button6 = new JButton("Button 6");
      JButton button7 = new JButton("Button 7");
      JButton button8 = new JButton("Button 8");
      JButton button9 = new JButton("Button 9");
      JButton button10 = new JButton("Button 10");
      JButton button11 = new JButton("Button 11");
      JButton button12 = new JButton("Button 12");
      JButton button13 = new JButton("Button 13");
      JButton button14 = new JButton("Button 14");
      JButton button15 = new JButton("Button 15");
      JButton button16 = new JButton("Button 16");
      JButton button17 = new JButton("Button 17");
      JButton button18 = new JButton("Button 18");

      //Add buttons to panel1
      panel1.add(button1);
      panel1.add(button2);
      panel1.add(button3);
      panel1.add(button4);
      panel1.add(button5);
      panel1.add(button6);

      //Add buttons to panel2



      //Add the buttons to panel3
      panel3.add(button7, BorderLayout.NORTH);
      panel3.add(button8, BorderLayout.SOUTH);
      panel3.add(button9, BorderLayout.EAST);
      panel3.add(button10, BorderLayout.WEST);

      //Add the buttons to panel4
      panel4.add(button11);
      panel4.add(button12);
      panel4.add(button13);
      panel4.add(button14);
      panel4.add(button15);
      panel4.add(button16);
      panel4.add(button17);
      panel4.add(button18);




      // Add the five panels to the content pane.
      add(panel1, BorderLayout.WEST);
      add(panel2, BorderLayout.CENTER);
      add(panel3, BorderLayout.EAST);
      add(panel4, BorderLayout.CENTER);



      // Pack and display the window.
      pack();
      setVisible(true);
   }

   /**
      The main method creates an instance of the
      BorderPanelWindow class, causing it to display
      its window.
   */

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

【问题讨论】：

我会用 3 个网格布局和一个边框布局来实现。按钮 1 到 6 的区域是否与按钮 7 到 18 的区域相同？
我愿意改变它，但我是把它们放在不同的区域，因为我不确定如何让它们保持不变。我们的教练给我们提供了很少的参考信息或任何东西来完成这项工作，所以我很困惑让这些布局正常工作。
@AndrewThompson 我现在只是不完全理解我在用 panel2 做什么，我知道它是一个 gridLayout 但我该如何应用它？
我很好奇你是否知道 GridLayout 构造函数的参数实际上是做什么的？
我已经说过几次了，我不太确定这是如何工作的，而且我们的导师在派我们去做这件事之前给我们提供的信息很少。

标签： java swing layout-manager grid-layout border-layout

【解决方案1】：

我会用 3 个网格布局和一个边框布局来实现。例如

GridLayout 用于左/右部分（每个部分一个面板）
1. GridLayout 用于按钮 1-6
2. BorderLayout 用于按钮 7-10 + 面板在 CENTER 用于..
  - GridLayout 用于按钮 11-18

更新

您的编辑 3 非常接近，请注意额外的 cmets 和代码更改以查看此内容：

import java.awt.*;     // Needed for BorderLayout class
import javax.swing.*;  // Needed for Swing classes

/**
   This class demonstrates how JPanels can be nested
   inside each region of a content pane governed by
   a BorderLayout manager.
*/

public class BorderPanelWindow extends JFrame
{
   /**
      Constructor
   */

   public BorderPanelWindow()
   {
      // Set the title bar text.
      setTitle("Border Layout");

      // Specify an action for the close button.
      setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); // better

      // Add a BorderLayout manager to the content pane.
      setLayout(new BorderLayout());

      // Create five panels.
      JPanel panel1 = new JPanel();
      panel1.setLayout(new GridLayout(2,3));
      JPanel panel2 = new JPanel();
      panel2.setLayout(new GridLayout(4,2));
      JPanel panel3 = new JPanel();
      panel3.setLayout(new BorderLayout());
      JPanel panel4 = new JPanel();
      // we need as many rows as needed (0) in 2 columns (2)
      panel4.setLayout(new GridLayout(0,2)); 


      // Create five buttons.
      JButton button1 = new JButton("Button 1");
      JButton button2 = new JButton("Button 2");
      JButton button3 = new JButton("Button 3");
      JButton button4 = new JButton("Button 4");
      JButton button5 = new JButton("Button 5");
      JButton button6 = new JButton("Button 6");
      JButton button7 = new JButton("Button 7");
      JButton button8 = new JButton("Button 8");
      JButton button9 = new JButton("Button 9");
      JButton button10 = new JButton("Button 10");
      JButton button11 = new JButton("Button 11");
      JButton button12 = new JButton("Button 12");
      JButton button13 = new JButton("Button 13");
      JButton button14 = new JButton("Button 14");
      JButton button15 = new JButton("Button 15");
      JButton button16 = new JButton("Button 16");
      JButton button17 = new JButton("Button 17");
      JButton button18 = new JButton("Button 18");

      //Add buttons to panel1
      panel1.add(button1);
      panel1.add(button2);
      panel1.add(button3);
      panel1.add(button4);
      panel1.add(button5);
      panel1.add(button6);

      //Add buttons to panel2



      //Add the buttons to panel3
      panel3.add(button7, BorderLayout.PAGE_START);
      panel3.add(button8, BorderLayout.PAGE_END);
      panel3.add(button9, BorderLayout.LINE_END);
      panel3.add(button10, BorderLayout.LINE_START);

      //Add the buttons to panel4
      panel4.add(button11);
      panel4.add(button12);
      panel4.add(button13);
      panel4.add(button14);
      panel4.add(button15);
      panel4.add(button16);
      panel4.add(button17);
      panel4.add(button18);

      // Add panel4 to the CENTER of panel3
      panel3.add(panel4, BorderLayout.CENTER);


      // Add the five panels to the content pane.
      add(panel1, BorderLayout.LINE_START);
      add(panel2, BorderLayout.CENTER);
      add(panel3, BorderLayout.LINE_END);
      //add(panel4, BorderLayout.CENTER); // AND DON'T ADD IT HERE!

      // Pack and display the window.
      pack();
      setVisible(true);
   }

   /**
      The main method creates an instance of the
      BorderPanelWindow class, causing it to display
      its window.
   */

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

【讨论】：

在让 1-6 出现的同时，我将如何做到这一点？我的想法是改变取消注释 add(panel10, BorderLayout.WEST);但是这样做会使 1-6 消失，而将 10 放在相对正确的位置。
向我展示您对 3 网格布局和边框布局的尝试。
我在这个线程上发布了一个答案，我越来越近了......我希望。 :D