我刚刚开始研究Eclipse上的Java GUI我挑战自己创建一个地址簿
这是我得到的
FRONT（摆动应用程序窗口）
package byDavid;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import java.awt.BorderLayout;
import javax.swing.JTextField;
import java.awt.Color;
import javax.swing.JPanel;
import javax.swing.DropMode;
import java.awt.Toolkit;
import javax.swing.JList;
import javax.swing.JMenuBar;
import javax.swing.JLabel;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.ButtonGroup;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JScrollPane;
public class Front {
private JFrame frame;
private final ButtonGroup buttonGroup = new ButtonGroup();
protected int top = 0; //Define Top for Stack Implementation
private static final int MAXENTRIES = 100; //Define Array Size
/**
* Launch the application.
*/
public static void main(String[] args) {
final AdressBookEntry[]list; //List is declared here
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Front window = new Front();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public Front() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setIconImage(Toolkit.getDefaultToolkit().getImage(Front.class.getResource("/com/sun/javafx/webkit/prism/resources/missingImage.png")));
frame.setBounds(100, 100, 357, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JList list = new JList();
JScrollPane scroll = new JScrollPane(list);
scroll.setBounds(24, 22, 185, 210);
frame.getContentPane().add(scroll);
JLabel lblNameEntrees = new JLabel("Name of Entrees");
lblNameEntrees.setBounds(50, 0, 134, 21);
frame.getContentPane().add(lblNameEntrees);
lblNameEntrees.setFont(new Font("Cambria Math", Font.BOLD, 17));
JButton btnAddNewEntry = new JButton("Add Entryrn");
btnAddNewEntry.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
AddEntry nw = new AddEntry();
nw.Addentry();
}
});
buttonGroup.add(btnAddNewEntry);
btnAddNewEntry.setBounds(231, 40, 100, 23);
frame.getContentPane().add(btnAddNewEntry);
JButton btnUpdateEntry = new JButton("Update Entry");
buttonGroup.add(btnUpdateEntry);
btnUpdateEntry.setBounds(231, 74, 99, 23);
frame.getContentPane().add(btnUpdateEntry);
JButton btnNewButton = new JButton("Delete Entry");
buttonGroup.add(btnNewButton);
btnNewButton.setBounds(231, 108, 100, 23);
frame.getContentPane().add(btnNewButton);
JButton btnNewButton_1 = new JButton("Quit");
btnNewButton_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});
buttonGroup.add(btnNewButton_1);
btnNewButton_1.setBounds(231, 140, 100, 23);
frame.getContentPane().add(btnNewButton_1);
JMenuBar menuBar = new JMenuBar();
frame.setJMenuBar(menuBar);
}
}
AddEntry（摆动应用程序窗口）/另一个弹出窗口
package byDavid;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.BorderLayout;
import javax.swing.JTextField;
import java.awt.Window.Type;
import org.eclipse.wb.swing.FocusTraversalOnArray;
import java.awt.Component;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class AddEntry {
private JFrame frame;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JButton btnQuit;
private JButton btnAccept;
/**
* Launch the application.
*/
public static void Addentry() {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
AddEntry window = new AddEntry();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public AddEntry() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
JTextField name ;
JTextField add ;
JTextField tel ;
JTextField email;
String name1 = "";
String add1 ="";
long tel1 = 0;
String email1 = "";
frame = new JFrame();
frame.setType(Type.POPUP);
frame.setBounds(100, 100, 369, 219);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JLabel lblName = new JLabel("Name:");
lblName.setBounds(10, 11, 62, 32);
frame.getContentPane().add(lblName);
JLabel lblAdress = new JLabel("Adress:");
lblAdress.setBounds(10, 42, 62, 32);
frame.getContentPane().add(lblAdress);
JLabel lblPhoneNumber = new JLabel("Phone Number:");
lblPhoneNumber.setBounds(10, 77, 99, 32);
frame.getContentPane().add(lblPhoneNumber);
JLabel lblEmailAddress = new JLabel("Email Address:");
lblEmailAddress.setBounds(10, 108, 99, 32);
frame.getContentPane().add(lblEmailAddress);
name = new JTextField();
name.setBounds(119, 15, 207, 25);
frame.getContentPane().add(name);
name.setColumns(10);
add = new JTextField();
add.setColumns(10);
add.setBounds(118, 46, 208, 25);
frame.getContentPane().add(add);
tel = new JTextField();
tel.setColumns(10);
tel.setBounds(119, 81, 207, 25);
frame.getContentPane().add(tel);
email = new JTextField();
email.setColumns(10);
email.setBounds(119, 112, 207, 25);
frame.getContentPane().add(email);
btnQuit = new JButton("Close");
btnQuit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});
btnQuit.setBounds(237, 148, 89, 23);
frame.getContentPane().add(btnQuit);
btnAccept = new JButton("Accept");
btnAccept.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
name.getText();
add.getText();
tel.getText();
email.getText();
frame.dispose();
//HERE IS THE PROBLEM
//I want the Text to be Assigned to a Variable
//So I will put these code here
/*
AddressBookEntry entry = new AddressBookEntry (name, add, tel, email);
list[top] = entry;
top++;
*/
//Yes list, top is getting the error here.. and It confuses me why?
}
});
btnAccept.setBounds(119, 148, 89, 23);
frame.getContentPane().add(btnAccept);
frame.setFocusTraversalPolicy(new FocusTraversalOnArray(new Component[] {frame.getContentPane(), lblName, lblAdress, lblPhoneNumber, lblEmailAddress, textField, textField_1, textField_2, textField_3}));
}
}
我如何声明列表和顶部被添加条目弹出窗口识别？
因为这个类必须将其显示为红色，这样我以后才能在Jlist中显示它。。
AdressBookEntry类（这是变量的temp所在的位置，将被调用）
package byDavid;
import javax.swing.JTextField;
public class AdressBookEntry {
private JTextField name;
private JTextField add;
private JTextField tel;
private JTextField email;
public AdressBookEntry(JTextField name, JTextField add, JTextField tel, JTextField email){
this.name = name;
this.add = add;
this.tel = tel;
this.email = email;
}
public JTextField getName(){
return name;
}
public void changeName(JTextField name){
this.name = name;
}
public JTextField getAddress(){
return add;
}
public void changeAddress(JTextField add){
this.add = add;
}
public JTextField getTelNumber(){
return tel;
}
public void changeTelNUmbe(JTextField tel){
this.tel = tel;
}
public JTextField getEmailAdd(){
return email;
}
public void changeEmailAdd(JTextField email){
this.email = email;
}
}
我搜索了很多帖子、博客等，但找不到具体的答案。请向我解释清楚，因为我在声明这两者及其具体错误时很困惑。。
一种方法：
public static void main(String[] args) {
final AdressBookEntry[] list; //List is declared here
EventQueue.invokeLater(new FrontRunner(list));
}
private class FrontRunner implements Runnable {
private AdressBookEntry[] list;
public FrontRunner(AdressBookEntry[] list) {
this.list = list;
}
public void run() {
try {
Front window = new Front();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}