java - 如何将内部框架添加到菜单

Question

我有一个 GUI，有 3 个菜单:读取文件、添加、完成。具体来说，在“添加”菜单下，我有 3 个菜单项，称为“添加所有者”、“添加住宅属性(property)”和“添加商业属性(property)”。当单击任何这些菜单项时，我会出现一个内部框架，但我不希望所有菜单项的内部框架都相同。与业主相比，我正在尝试为商业和住宅属性(property)添加更多文本字段。所以我不希望每个菜单项的内部框架相同但唯一，这就是我遇到麻烦的地方。这是代码

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

public class PropertyGUITest
{
    public static void main(String[] args)
    {
        PropertyGUI obj = new PropertyGUI();
        obj.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        obj.setSize(400,300);
        obj.setVisible(true);
        obj.setLocation(100,50);
    }
}

class PropertyGUI extends JFrame
{
    private int countFrames = 0;
    public PropertyGUI()
    {
        super("Property GUI");

        JMenuBar bar = new JMenuBar();
        setJMenuBar(bar);

        JMenu readMenu = new JMenu("Read Files");
        bar.add(readMenu);

        JMenu addMenu = new JMenu("Add");
        bar.add(addMenu);

        JMenuItem newFrame1=new JMenuItem("Add Owner");
        addMenu.add(newFrame1);

        JMenuItem newFrame2=new JMenuItem("Add Residential Property");
        addMenu.add(newFrame2);

        JMenuItem newFrame3=new JMenuItem("Add Commercial Property");
        addMenu.add(newFrame3);

        JMenu finishMenu = new JMenu("Finish");
        bar.add(finishMenu);

        JDesktopPane theDesktop = new JDesktopPane();
        add(theDesktop);

        JMenuItem writeItem = new JMenuItem("Write Owners");
        finishMenu.add(writeItem);

        JMenuItem readpItem = new JMenuItem("Read Properties");
        readMenu.add(readpItem);

        JMenuItem readoItem = new JMenuItem("Read Owners");
        readMenu.add(readoItem);

        JMenuItem exitItem = new JMenuItem("Exit");
        exitItem.addActionListener(
            new ActionListener()
            {
                public void actionPerformed(ActionEvent event)
                {
                    //System.exit(0);
                    dispose();
                }
            }
        );
        finishMenu.add(exitItem);

        newFrame1.addActionListener(
            new ActionListener()
            {
                public void actionPerformed(ActionEvent e)
                {
                    countFrames++;
                    JInternalFrame jf = new JInternalFrame("Add Owner",true,true,true,true);
                    theDesktop.add(jf);
                    jf.setVisible(true);
                    jf.pack();
                    jf.setSize(300,200);
                    jf.setLocation(countFrames*10,countFrames*20);

                    CustomPanel panel1 = new CustomPanel();
                    jf.add(panel1);


                }
            }
        );

        newFrame2.addActionListener(
            new ActionListener()
            {
                public void actionPerformed(ActionEvent e)
                {
                    countFrames++;
                    JInternalFrame jf = new JInternalFrame("Add Residential Property",true,true,true,true);
                    theDesktop.add(jf);
                    jf.setVisible(true);
                    jf.pack();
                    jf.setSize(300,200);
                    jf.setLocation(countFrames*10,countFrames*20);

                    CustomPanel panel2 = new CustomPanel();
                    jf.add(panel2);


                }
            }
        );

        newFrame3.addActionListener(
            new ActionListener()
            {
                public void actionPerformed(ActionEvent e)
                {
                    countFrames++;
                    JInternalFrame jf = new JInternalFrame("Add Commercial Property",true,true,true,true);
                    theDesktop.add(jf);
                    jf.setVisible(true);
                    jf.pack();
                    jf.setSize(300,200);
                    jf.setLocation(countFrames*10,countFrames*20);

                    CustomPanel panel3 = new CustomPanel();
                    jf.add(panel3);


                }
            }
        );
    }

    class CustomPanel extends JPanel
    {
        JTextField tf1;
        JTextField tf2;
        JTextField tf3;
        JTextField tf4;
        JTextField tf5;
        JLabel label1;
        JLabel label2;
        JLabel label3;
        JLabel label4;
        JLabel label5;
        JLabel label6;
        JButton button1;


        public CustomPanel()
        {
            setLayout(new GridBagLayout());
            GridBagConstraints gbc = new GridBagConstraints();
            gbc.gridx = 0;
            gbc.gridy = 0;
            gbc.weightx = 1;
            gbc.anchor = GridBagConstraints.WEST;
            gbc.insets = new Insets(2, 2, 2, 2);

            add(new JLabel("Name"), gbc);
            gbc.gridy++;
            add(new JLabel("Street"), gbc);
            gbc.gridy++;
            add(new JLabel("City"), gbc);
            gbc.gridy++;
            add(new JLabel("State"), gbc);
            gbc.gridy++;
            add(new JLabel("Zip"), gbc);
            gbc.gridy++;
            add(new JLabel("Submit when done"), gbc);

            JTextField[] fields = new JTextField[5];
            gbc.gridx = 1;
            gbc.gridy = 0;
            gbc.weightx = 1;
            gbc.fill = GridBagConstraints.HORIZONTAL;
            add((fields[0] = new JTextField(10)), gbc);
            gbc.gridy++;
            add((fields[1] = new JTextField(10)), gbc);
            gbc.gridy++;
            add((fields[2] = new JTextField(10)), gbc);
            gbc.gridy++;
            add((fields[3] = new JTextField(10)), gbc);
            gbc.gridy++;
            add((fields[4] = new JTextField(10)), gbc);
            gbc.gridy++;
            JButton btn = new JButton("Submit");
            add(btn, gbc);



        }
    }
}

对于商业和住宅属性(property)，我只想在提交按钮之前添加两个用于帐号和价格的文本字段。

Answer 1

i do not qant the internal frame to be the same but unique for each menu item and that is where i am having trouble.

CustomPanel panel1 = new CustomPanel();
...
CustomPanel panel2 = new CustomPanel();
...
CustomPanel panel3 = new CustomPanel();

那么您就不能使用同一个面板。

您需要 3 个不同的面板。您需要:

1. “所有者面板”
2. “住宅面板”
3. “商业面板”

如果每个面板的数据不同，请勿尝试让内部框架使用相同的面板。

//CustomPanel panel1 = new CustomPanel();
OwnerPanel panel1 = new OwnerPanel();
...
//CustomPanel panel2 = new CustomPanel();
ResidentialPanel panel2 = new ResidentialPanel();
...
//CustomPanel panel3 = new CustomPanel();
CommercialPanel panel3 = new CommercialPanel();