在JFrame中设置布局时出现问题

我正在尝试在面板中设置文本框和标签，但是文本框的尺寸不合适，布局也没有正确设置

public class FrameLayout1 implements ActionListener {
 JTextField[] txtName;
    JLabel[] lblname; 
    JCheckBox keyButton;
    JCheckBox cascadeButton;
    JComboBox SetList;
    JComboBox ClassList;
    JLabel[] lblType;
    JTextField txtJoinColumn;
    JLabel[] lblAssoType;
    JTextField[] txtJoinColumnAssoc;

    FrameLayout1(){

    }
  public void setDetailsPanel() 
    {

        txtName = new JTextField[10];
        txtJoinColumnAssoc = new JTextField[10];
        lblname=new JLabel[10]; 
        lblType=new JLabel[10];
        lblAssoType=new JLabel[20]; 
        JFrame ColumnFrame=new JFrame("Enter the Column Values"); 

        int i=0;

        JPanel panel =  new JPanel(new GridLayout(0,1,5,10));

        for (i=0;i<5;i++) 
        {
            JPanel panelTxtLbl =  new JPanel(new GridLayout(0,2));
            lblname[i] = new JLabel("label"+i+":", JLabel.LEFT);
            panelTxtLbl.add(lblname[i]);

            txtName[i] = new JTextField(15);
            panelTxtLbl.add(txtName[i]);

            panel.add(panelTxtLbl);
            lblType[i] = new JLabel("labeldata", JLabel.LEFT);
            panel.add(lblType[i]);


            String[] SetStrings = { "One to Many","Many to Many" };
            SetList = new JComboBox(SetStrings);
            SetList.setSelectedIndex(1);
            panel.add(SetList);

            cascadeButton = new JCheckBox("cascade"); 
            cascadeButton.setSelected(true);
            panel.add(cascadeButton);

            JPanel panelSetClass =  new JPanel(new GridLayout(0,2));
            for(int j=0;j<3;j++)
             {
                lblAssoType[j]=new JLabel("Label Inner"+j+":", JLabel.LEFT);
                panelSetClass.add(lblAssoType[j]);

                txtJoinColumnAssoc[j] = new JTextField(15);
                panelSetClass.add(txtJoinColumnAssoc[j]);

             }
                panel.add(panelSetClass);
                panel.add(createHorizontalSeparator());
        } 


            //detailsPanel.add(panel, BorderLayout.CENTER);
            //detailsPanel.setAutoscrolls(true);
            panel.setAutoscrolls(true);
            JButton button = new JButton("Submit");
            button.addActionListener(this);
            //detailsPanel.add(button,BorderLayout.PAGE_END); 
            panel.add(button,BorderLayout.PAGE_END); 

            Color c=new Color(205, 222, 216);
            ColumnFrame.setLayout(new BorderLayout());
            ColumnFrame.add(panel,BorderLayout.CENTER);
            //ColumnFrame.setSize(700,600);
            ColumnFrame.setBackground(c);
            ColumnFrame.pack();
            ColumnFrame.setVisible(true);
            ColumnFrame.setLocation(200, 200);
    }
    /*
     * to add a horizontal line in the panel
     */
    static JComponent createHorizontalSeparator() {  
         JSeparator x = new JSeparator(SwingConstants.HORIZONTAL);  
         x.setPreferredSize(new Dimension(3,2));  
         return x;   
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub

    } 


}

createHorizo​​ntalSeparator函数可帮助您在面板中添加一条水平线，因为我无法分隔字段。

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