很抱歉，如果我是双重定位，但我完全厌倦了Java。 我试图让我的表单能够动态更改，如果你选择一个单选按钮。函数save，delete，new将保持不变，但是正文的内容例如UPC将改为小说和其他领域的ISBN。 当你按Novel来加载Novel中的项目以取代漫画书时，有没有办法？ 我试图分开，但是我遇到了障碍，我的技能有限，不知道该怎么做。 我只是希望它能够改变它以便它起作用。
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.MenuBar;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Scanner;
public class FormFictionCatelogue extends JFrame implements ActionListener {
// Constants
// =========
private final String FORM_TITLE = "Fiction Adiction Catelogue";
private final int X_LOC = 400;
private final int Y_LOC = 80;
private final int WIDTH = 600;
private final int HEIGHT = 450;
private String gradeCode;
//final static String filename = "data/comicBookData.txt";
private JButton firstPageButton;
private JButton backPageButton;
private JButton forwardPageButton;
private JButton lastPageButton;
private JRadioButton comicBookRadioButton;
private JRadioButton novelRadioButton;
private final String FIRSTPAGE_BUTTON_TEXT = "|<";
private final String BACKPAGE_BUTTON_TEXT = "<";
private final String FORWARDPAGE_BUTTON_TEXT = ">";
private final String LASTPAGE_BUTTON_TEXT = ">|";
private final String COMICBOOK_BUTTON_TEXT = "Comic";
private final String NOVEL_BUTTON_TEXT = "Novel";
private final String SAVE_BUTTON_TEXT = "Save";
private final String EXIT_BUTTON_TEXT = "Exit";
private final String CLEAR_BUTTON_TEXT = "Clear";
private final String FIND_BUTTON_TEXT = "Find";
private final String DELETE_BUTTON_TEXT = "Delete";
private final String ADDPAGE_BUTTON_TEXT = "New";
// Attributes
private JTextField upcTextField;
private JTextField isbnTextField;
private JTextField titleTextField;
private JTextField issueNumTextField;
private JTextField bookNumTextField;
private JTextField writerTextField;
private JTextField authorTextField;
private JTextField artistTextField;
private JTextField publisherTextField;
private JTextField seriesTextField;
private JTextField otherBooksTextField;
private JTextField gradeCodeTextField;
private JTextField charactersTextField;
private JButton saveButton;
private JButton deleteButton;
private JButton findButton;
private JButton clearButton;
private JButton exitButton;
private JButton addPageButton;
FictionCatelogue fc;
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) {
try {
FormFictionCatelogue form = new FormFictionCatelogue();
form.fc = new FictionCatelogue();
form.setVisible(true);
//comicBook selected by default
form.populatefields(form.fc.returnComic(0));
//if novel is selected change fields to novel and populate
} catch (Exception e) {
System.err.println("Error: " + e.getMessage());
}
}
/**
*
*/
public FormFictionCatelogue() {
// Set form properties
// ===================
setTitle(FORM_TITLE);
setSize(WIDTH, HEIGHT);
setLocation(X_LOC, Y_LOC);
// Create and set components
// -------------------------
// Create panels to hold components
JPanel menuBarPanel = new JPanel();
JPanel fieldsPanel = new JPanel();
JPanel buttonsPanel = new JPanel();
JPanel navigationPanel = new JPanel();
//JPanel radioButtonsPanel = new JPanel();
ButtonGroup bG = new ButtonGroup();
// Set the layout of the panels
GridLayout fieldsPanelLayout = new GridLayout(9, 6);
// Menu
JMenuBar menubar = new JMenuBar();
ImageIcon icon = new ImageIcon("exit.png");
JMenu file = new JMenu("File");
file.setMnemonic(KeyEvent.VK_F);
JMenu about = new JMenu("About");
file.setMnemonic(KeyEvent.VK_F);
JMenuItem eMenuItem = new JMenuItem("Exit", icon);
eMenuItem.setMnemonic(KeyEvent.VK_E);
eMenuItem.setToolTipText("Exit application");
eMenuItem.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent event) {
System.exit(0);
}
});
JMenuItem eMenuItem1 = new JMenuItem("Reports", icon);
eMenuItem.setMnemonic(KeyEvent.VK_E);
eMenuItem.setToolTipText("Reports are located here");
eMenuItem.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent event) {
//calls reports
//System.exit(0);
}
});
file.add(eMenuItem);
about.add(eMenuItem1);
menubar.add(file);
menubar.add(about);
setJMenuBar(menubar);
setTitle("Menu");
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
//if comic is selected
ComicBookFields(fieldsPanel);
//else
//NovelFields(fieldsPanel);
// Buttons
comicBookRadioButton = new JRadioButton(COMICBOOK_BUTTON_TEXT);
novelRadioButton = new JRadioButton(NOVEL_BUTTON_TEXT);
bG.add(comicBookRadioButton);
bG.add(novelRadioButton);
this.setLayout(new FlowLayout());
this.add(comicBookRadioButton);
this.add(novelRadioButton);
comicBookRadioButton.setSelected(true);
bG.add(comicBookRadioButton);
bG.add(novelRadioButton);
addPageButton = new JButton(ADDPAGE_BUTTON_TEXT);
buttonsPanel.add(addPageButton);
saveButton = new JButton(SAVE_BUTTON_TEXT);
buttonsPanel.add(saveButton);
clearButton = new JButton(CLEAR_BUTTON_TEXT);
buttonsPanel.add(clearButton);
deleteButton = new JButton(DELETE_BUTTON_TEXT);
buttonsPanel.add(deleteButton);
findButton = new JButton(FIND_BUTTON_TEXT);
buttonsPanel.add(findButton);
exitButton = new JButton(EXIT_BUTTON_TEXT);
buttonsPanel.add(exitButton);
firstPageButton = new JButton(FIRSTPAGE_BUTTON_TEXT);
navigationPanel.add(firstPageButton);
backPageButton = new JButton(BACKPAGE_BUTTON_TEXT);
navigationPanel.add(backPageButton);
forwardPageButton = new JButton(FORWARDPAGE_BUTTON_TEXT);
navigationPanel.add(forwardPageButton);
lastPageButton = new JButton(LASTPAGE_BUTTON_TEXT);
navigationPanel.add(lastPageButton);
// Get the container holding the components of this class
Container con = getContentPane();
// Set layout of this class
con.setLayout(new BorderLayout());
con.setLayout( new FlowLayout());
// Add the fieldsPanel and buttonsPanel to this class.
// con.add(menuBarPanel, BorderLayout);
con.add(fieldsPanel, BorderLayout.CENTER);
con.add(buttonsPanel, BorderLayout.LINE_END);
con.add(navigationPanel, BorderLayout.SOUTH);
//con.add(radioButtonsPanel, BorderLayout.PAGE_START);
// Register listeners
// ==================
// Register action listeners on buttons
saveButton.addActionListener(this);
clearButton.addActionListener(this);
deleteButton.addActionListener(this);
findButton.addActionListener(this);
exitButton.addActionListener(this);
firstPageButton.addActionListener(this);
backPageButton.addActionListener(this);
forwardPageButton.addActionListener(this);
lastPageButton.addActionListener(this);
addPageButton.addActionListener(this);
comicBookRadioButton.addActionListener(this);
novelRadioButton.addActionListener(this);
// Exit program when window is closed
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public void Radiobutton (){
this.add(comicBookRadioButton);
this.add(novelRadioButton);
comicBookRadioButton.setSelected(true);
this.setVisible(true);
}
// Populate the fields at the start of the application
public void populatefields(ComicBook cb) {
String gradecode;
// radio button selection = comic do this
if (cb != null) {
upcTextField.setText(cb.getUpc());
titleTextField.setText(cb.getTitle());
issueNumTextField.setText(Integer.toString(cb.getIssuenumber()));
writerTextField.setText(cb.getWriter());
artistTextField.setText(cb.getArtist());
publisherTextField.setText(cb.getPublisher());
gradecode = cb.getGradeCode();
gradeCodeTextField.setText(cb.determineCondition(gradecode));
charactersTextField.setText(cb.getCharacters());
}
//radio button selection = novel do this
// Exit program when window is closed
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
/**
*
*/
public void actionPerformed(ActionEvent ae) {
try {
if(ae.getActionCommand().equals(COMICBOOK_BUTTON_TEXT)){
//FormFictionCatelogue form = new FormFictionCatelogue();
//form.populatefields(form.fc.returnObject(0));
//ComicBookFields(fieldsPanel);
populatefields(fc.returnComic(0));
} else if (ae.getActionCommand().equals(NOVEL_BUTTON_TEXT)) {
} else if (ae.getActionCommand().equals(SAVE_BUTTON_TEXT)) {
save();
} else if (ae.getActionCommand().equals(CLEAR_BUTTON_TEXT)) {
clear();
} else if (ae.getActionCommand().equals(ADDPAGE_BUTTON_TEXT)) {
add();
} else if (ae.getActionCommand().equals(DELETE_BUTTON_TEXT)) {
delete();
} else if (ae.getActionCommand().equals(FIND_BUTTON_TEXT)) {
find();
} else if (ae.getActionCommand().equals(EXIT_BUTTON_TEXT)) {
exit();
} else if (ae.getActionCommand().equals(FIRSTPAGE_BUTTON_TEXT)) {
// first record
populatefields(fc.firstRecord());
} else if (ae.getActionCommand().equals(FORWARDPAGE_BUTTON_TEXT)) {
// next record
populatefields(fc.nextRecord());
} else if (ae.getActionCommand().equals(BACKPAGE_BUTTON_TEXT)) {
// previous record
populatefields(fc.previousRecord());
} else if (ae.getActionCommand().equals(LASTPAGE_BUTTON_TEXT)) {
// last record
populatefields(fc.lastRecord());
} else {
throw new Exception("Unknown event!");
}
} catch (Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), "Error!",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
}
void clear() {
upcTextField.setText("");
titleTextField.setText("");
issueNumTextField.setText("");
writerTextField.setText("");
artistTextField.setText("");
gradeCodeTextField.setText("");
publisherTextField.setText("");
charactersTextField.setText("");
}
private void exit() {
System.exit(0);
}
void add() {
try{
clear();
ComicBook cb = new ComicBook();
fc.add(cb);
fc.lastRecord();
} catch (Exception e){
e.printStackTrace();
}
}
void save() throws Exception {
// if radio button = comic do this
ComicBook cb = new ComicBook();
String condition;
if (upcTextField.getText().length() == 16) {
//searches if there is another record if()
cb.setUpc(upcTextField.getText());
} else {
throw new Exception("Upc is not at required length ");
}
cb.setTitle(titleTextField.getText());
cb.setIssuenumber(Integer.parseInt(issueNumTextField.getText()));
cb.setWriter(writerTextField.getText());
cb.setArtist(artistTextField.getText());
cb.setPublisher(publisherTextField.getText());
condition = cb.determineString(gradeCodeTextField.getText());
if (condition.equals("Wrong Input")) {
throw new Exception("Grade code is not valid");
} else {
cb.setGradeCode(condition);
}
cb.setCharacters(charactersTextField.getText());
fc.save(cb);
// if radio button = novels do this
}
private void delete() throws Exception {
fc.delete();
populatefields(fc.getCurrentRecord());
}
private void find() {
// from
// http://www.roseindia.net/java/example/java/swing/ShowInputDialog.shtml
String str = JOptionPane.showInputDialog(null, "Enter some text : ",
"Comic Book Search", 1);
if (str != null) {
ComicBook cb = new ComicBook();
cb = fc.search(str);
if (cb != null) {
populatefields(cb);
} else {
JOptionPane.showMessageDialog(null, "No comic books found ",
"Comic Book Search", 1);
}
}
}
public JPanel ComicBookFields(JPanel fieldsPanel) {
// Create components and add to panels for ComicBook
GridLayout fieldsPanelLayout = new GridLayout(9, 6);
fieldsPanel.setLayout(fieldsPanelLayout);
fieldsPanel.add(new JLabel("UPC: "));
upcTextField = new JTextField(20);
fieldsPanel.add(upcTextField);
fieldsPanel.add(new JLabel("Title: "));
titleTextField = new JTextField(20);
fieldsPanel.add(titleTextField);
fieldsPanel.add(new JLabel("Issue Number: "));
issueNumTextField = new JTextField(20);
fieldsPanel.add(issueNumTextField);
fieldsPanel.add(new JLabel("Writer: "));
writerTextField = new JTextField(20);
fieldsPanel.add(writerTextField);
fieldsPanel.add(new JLabel("Artist: "));
artistTextField = new JTextField(20);
fieldsPanel.add(artistTextField);
fieldsPanel.add(new JLabel("Publisher: "));
publisherTextField = new JTextField(20);
fieldsPanel.add(publisherTextField);
fieldsPanel.add(new JLabel("Grade Code: "));
gradeCodeTextField = new JTextField(20);
fieldsPanel.add(gradeCodeTextField);
fieldsPanel.add(new JLabel("Characters"));
charactersTextField = new JTextField(20);
fieldsPanel.add(charactersTextField);
return fieldsPanel;
}
public JPanel NovelFields(JPanel fieldsPanel) {
// Create components and add to panels for ComicBook
GridLayout fieldsPanelLayout = new GridLayout(9, 6);
fieldsPanel.setLayout(fieldsPanelLayout);
fieldsPanel.add(new JLabel("ISBN: "));
isbnTextField = new JTextField(20);
fieldsPanel.add(isbnTextField);
fieldsPanel.add(new JLabel("Title: "));
titleTextField = new JTextField(20);
fieldsPanel.add(titleTextField);
fieldsPanel.add(new JLabel("Book Number: "));
bookNumTextField = new JTextField(20);
fieldsPanel.add(bookNumTextField);
fieldsPanel.add(new JLabel("Author: "));
authorTextField = new JTextField(20);
fieldsPanel.add(authorTextField);
fieldsPanel.add(new JLabel("Publisher: "));
publisherTextField = new JTextField(20);
fieldsPanel.add(publisherTextField);
fieldsPanel.add(new JLabel("Series: "));
seriesTextField = new JTextField(20);
fieldsPanel.add(seriesTextField);
fieldsPanel.add(new JLabel("Other Books"));
otherBooksTextField = new JTextField(20);
fieldsPanel.add(otherBooksTextField);
return fieldsPanel;
}
}
答案 0 :(得分：0)
要交换表单，您可以使用CardLayout。
阅读How to Use CardLayout上Swing教程中的部分，了解更多信息和工作示例。
从组合框中进行选择时，教程中的示例会切换。在您的情况下，您将在单击单选按钮时更改面板。因此，您可能还想阅读How to Use Buttons上教程中的部分。
答案 1 :(得分：0)
否则，您可以在JPanel选项上切换JRadioButton，如下所示：
如果您选择小说JPanel displayPanel被清除，则您有一个名为ComicPanel的{{1}}默认包含RadioButton并添加displayPanel。
NovelPanel因此，您可以选择自己想做的事情。可能几乎是一切;）
帕特里克