如何使用BorderLayout将标签向上移动一个位置？

Question

我正在尝试在GUI顶部添加一个标签，上面写着“选择注册选项”，但是在弄乱setBounds之后，它似乎根本没有移动标签。这就是它的样子。 / p>

我希望显示“选择注册选项”的标签在程序的顶部中心。从更简单的意义上讲，我只想移动标签，同时保持其他所有东西都与现在相同的样子。我只想将标签向上移动并居中。这样，我的General和Student单选按钮就可以像以前一样恢复原状。

但是，我尝试的所有内容都无法正确编译，或者在编译时无法正常工作。我可以在这里得到帮助吗？

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

class SignupGUI extends JFrame{
    private final int DINNER_PRICE = 30;
    private final int[] FEES = {295, 295, 395, 395};
    private final String[] WORKSHOPS = {"Introduction to E-Commerce","The Future of the Web",
                                            "Advanced Java Programming","Network Security"};
    private final String[] REGISTRATION_TYPES = {"General", "Student"};
    private final int REGISTRATION1 = 895, REGISTRATION2 = 495;    
    private JCheckBox dinnerCheck;
    private JList workshopList;
    //private JComboBox registrationBox;
    private JRadioButton studentButton;
    private JRadioButton generalButton;
    private ButtonGroup group;
    private JButton calcButton;
    private JButton clearButton;
    private JButton exitButton;
    private JLabel label;
    public SignupGUI() {
        setTitle("Conference Registration System");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        buildPanel();
        pack();
        setVisible(true);
    }
    private void buildPanel()
    {
      JPanel smallCombo = new JPanel();
      JPanel subPanel = new JPanel();
      Font f1 = new Font("Serif", Font.BOLD, 24);
      label = new JLabel("Select Registration Options");
      label.setFont(f1);
      label.setBounds(50, 50, 100, 100);
      smallCombo.add(label, BorderLayout.NORTH);

      workshopList = new JList(WORKSHOPS);
      //registrationBox = new JComboBox(REGISTRATION_TYPES);
      dinnerCheck = new JCheckBox("Dinner and Keynote Speech");
      calcButton = new JButton("Calculate price");
      clearButton = new JButton("Clear");
      exitButton = new JButton("Exit");


      //registrationBox.setBorder(BorderFactory.createTitledBorder("Registration type"));
      //registrationBox.setPreferredSize(new Dimension(160,45));
      studentButton = new JRadioButton("Student");
      generalButton = new JRadioButton("General", true);
      workshopList.setBorder(BorderFactory.createTitledBorder("Workshops"));
      //smallCombo.add(registrationBox);


      group = new ButtonGroup();

      group.add(studentButton);
      group.add(generalButton);
      add(smallCombo, BorderLayout.NORTH);
      add(dinnerCheck, BorderLayout.EAST);
      add(workshopList, BorderLayout.CENTER);


      /*add(calcButton, BorderLayout.SOUTH);
      add(clearButton, BorderLayout.SOUTH);*/

      subPanel.add(calcButton);
      subPanel.add(clearButton);
      subPanel.add(exitButton);

      add(subPanel, BorderLayout.SOUTH);



      //studentButton.addActionListener(new CalcListen());
      //generalButton.addActionListener(new CalcListen());
      calcButton.addActionListener(new CalcListen());
      clearButton.addActionListener(new ClearListen());
      exitButton.addActionListener(new ExitListen());



      smallCombo.add(generalButton);
      smallCombo.add(studentButton);


    }
    private class CalcListen implements ActionListener{
      public void actionPerformed(ActionEvent e)
      {
         int totalPrice = 0;
         if(dinnerCheck.isSelected())
         {
            totalPrice+=DINNER_PRICE;
         }
         int workshops = getWorkshops();
         totalPrice+=workshops;
         int regType = getRegistrationType();
         totalPrice+=regType;
         JOptionPane.showMessageDialog(null, "$" + totalPrice);

       }
    }

    private class ClearListen implements ActionListener
    {
      public void actionPerformed(ActionEvent e)
      {
         workshopList.clearSelection();
         group.clearSelection();
         dinnerCheck.setSelected(false);
      }
    }

    private class ExitListen implements ActionListener
    {
      public void actionPerformed(ActionEvent e)
      {
         System.exit(0);
      }
    }

    private int getWorkshops(){
      int workShopCost = 0;
      int[] selected = workshopList.getSelectedIndices();
      int index = workshopList.getSelectedIndex();
      for(int s:selected)
         workShopCost+=FEES[s];
      if (index == -1)
      {
         JOptionPane.showMessageDialog(null, "Please select type of workshop.");
         index = workshopList.getSelectedIndex();
      }
        return workShopCost;
    }

    private int getRegistrationType()
    {
      int registrationCost = 0;
      //int selected = group.isSelected();
      //registrationCost = REGISTRATION[selected];
      if(generalButton.isSelected())
      {
         registrationCost = REGISTRATION1;
      }
      else if(studentButton.isSelected())
      {
         registrationCost = REGISTRATION2;
      }
      else
      {
         JOptionPane.showMessageDialog(null, "Please select type of registration.");
      }

      return registrationCost;
    }
}