import java.awt.*;
import java.awt.event.*;import javax.swing.*;
public class Hxqcc2 extends JFrame implements ActionListener
{
private JButton btnenter,btnderu;
private JLabel lbl,lbl2;
private JPanel panel;
private int x,y;
private String n,m;
public static void main(String[] args)
{
Hxqcc2 frame=new Hxqcc2();
frame.setSize(500,535);
frame.setTitle("红星汽车城服务系统");
frame.createGUI();
frame.setVisible(true);
} private void createGUI()
{
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container window=getContentPane();
window.setBackground(Color.pink);
window.setLayout(new FlowLayout());
lbl =new JLabel();
lbl.setText("红星汽车城服务区欢迎您的到来");
lbl.setFont(new Font("隶书",Font.CENTER_BASELINE,30));
lbl.setLocation(35,0);
lbl.setSize(550,68);
lbl.setForeground(Color.blue);
lbl.setHorizontalAlignment(JLabel.CENTER);
window.add(lbl);
lbl2=new JLabel();
panel =new JPanel();
lbl2.setIcon(new ImageIcon("hxqcc2.JPG"));
panel.setPreferredSize(new Dimension(443,407));
panel.setBackground(Color.pink);
panel.add(lbl2);
window.add(panel);
btnenter =new JButton("进入");
window.add(btnenter);
btnenter.setHorizontalAlignment(JLabel.CENTER);
btnenter.addActionListener(this);
btnderu =new JButton("登录");
window.add(btnderu);
btnderu.setHorizontalAlignment(JLabel.CENTER);
btnderu.addActionListener(this);
}
public void actionPerformed(ActionEvent event)
{
if(event.getSource()==btnenter)
{
String str1="",str2="";
n= JOptionPane.showInputDialog(this,"请输入车牌号码:","车辆检验",JOptionPane.QUESTION_MESSAGE);
n+=str1;
x= Integer.parseInt(n);
m = JOptionPane.showInputDialog(this,"请输入客户代号,为默认三位数","客户代号",JOptionPane.QUESTION_MESSAGE);
m+=str2;
y= Integer.parseInt(m);
if(x<1000&&y<1000)
{JOptionPane.showMessageDialog(this,"您的车辆登入要求正确,继续" ,"检测结果",JOptionPane.INFORMATION_MESSAGE);}
} if(event.getSource()==btnderu)
{
btnderu.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
class Menul extends JFrame
{
JMenu Menu = new JMenu();
MenuBar mb1 = new MenuBar();
Menu f = new Menu("红星简介");
Menu m = new Menu("搜索区位");
Menu s = new Menu("服务客户");
TextField text = new TextField("欢迎光临红星汽车城", 30);
String[] flavors =
{ "Chocolate", "Strawberry",
"Vanilla Fudge Swirl", "Mint Chip",
"Mocha Almond Fudge", "Rum Raisin",
"Praline Cream", "Mud Pie"
};
CheckboxMenuItem[] safety =
{
new CheckboxMenuItem("Guard"),
new CheckboxMenuItem("Hide")
};
MenuItem[] file =
{
new MenuItem("Open"),
new MenuItem("Exit")
};
MenuBar mb2 = new MenuBar();
Menu fooBar = new Menu("客户评价/留言/签名");
MenuItem[] other =
{
new MenuItem("评价"),
new MenuItem("留言"),
new MenuItem("签名"),
};
Button b = new Button("Swap Menus");
public Menul()
{
for(int i = 0; i < flavors.length; i++)
{
m.add(new MenuItem(flavors[i]));
// Add separators at intervals:
if((i+1) % 3 == 0)
m.addSeparator();
}
for(int i = 0; i < safety.length; i++)
s.add(safety[i]);
f.add(s);
for(int i = 0; i < file.length; i++)
f.add(file[i]);
mb1.add(f);
mb1.add(m);
setMenuBar(mb1);
text.setEditable(false);
add("Center", text);
// Set up the system for swapping menus:
add("North", b);
for(int i = 0; i < other.length; i++)
fooBar.add(other[i]);
mb2.add(fooBar);
}
public boolean handleEvent(Event evt)
{
if(evt.id == Event.WINDOW_DESTROY)
System.exit(0);
else
return super.handleEvent(evt);
return true;
}
public boolean action(Event evt, Object arg)
{
if(evt.target.equals(b))
{
MenuBar m = getMenuBar();
if(m == mb1) setMenuBar(mb2);
else if (m == mb2) setMenuBar(mb1);
}
else if(evt.target instanceof MenuItem)
{
if(arg.equals("Open"))
{
String s = text.getText();
boolean chosen = false;
for(int i = 0; i < flavors.length; i++)
if(s.equals(flavors[i]))
chosen = true;
if(!chosen)
text.setText("Choose a flavor first!");
else
text.setText("Opening "+ s +". Mmm, mm!");
}
else if(evt.target.equals(file[1]))
System.exit(0);
// CheckboxMenuItems cannot use String
// matching; you must match the target:
else if(evt.target.equals(safety[0]))
text.setText("Guard the Ice Cream! " +"Guarding is " + safety[0].getState());
else if(evt.target.equals(safety[1]))
text.setText("Hide the Ice Cream! " +"Is it cold? " + safety[1].getState());
else
text.setText(arg.toString());
}
else
return super.action(evt, arg);
return true;
}
public void main(String[] args)
{
Menul f = new Menul();
f.resize(400,300);
f.setVisible(true);
}
}
}});
}
}
}
谢谢专家!!!
import java.awt.event.*;import javax.swing.*;
public class Hxqcc2 extends JFrame implements ActionListener
{
private JButton btnenter,btnderu;
private JLabel lbl,lbl2;
private JPanel panel;
private int x,y;
private String n,m;
public static void main(String[] args)
{
Hxqcc2 frame=new Hxqcc2();
frame.setSize(500,535);
frame.setTitle("红星汽车城服务系统");
frame.createGUI();
frame.setVisible(true);
} private void createGUI()
{
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container window=getContentPane();
window.setBackground(Color.pink);
window.setLayout(new FlowLayout());
lbl =new JLabel();
lbl.setText("红星汽车城服务区欢迎您的到来");
lbl.setFont(new Font("隶书",Font.CENTER_BASELINE,30));
lbl.setLocation(35,0);
lbl.setSize(550,68);
lbl.setForeground(Color.blue);
lbl.setHorizontalAlignment(JLabel.CENTER);
window.add(lbl);
lbl2=new JLabel();
panel =new JPanel();
lbl2.setIcon(new ImageIcon("hxqcc2.JPG"));
panel.setPreferredSize(new Dimension(443,407));
panel.setBackground(Color.pink);
panel.add(lbl2);
window.add(panel);
btnenter =new JButton("进入");
window.add(btnenter);
btnenter.setHorizontalAlignment(JLabel.CENTER);
btnenter.addActionListener(this);
btnderu =new JButton("登录");
window.add(btnderu);
btnderu.setHorizontalAlignment(JLabel.CENTER);
btnderu.addActionListener(this);
}
public void actionPerformed(ActionEvent event)
{
if(event.getSource()==btnenter)
{
String str1="",str2="";
n= JOptionPane.showInputDialog(this,"请输入车牌号码:","车辆检验",JOptionPane.QUESTION_MESSAGE);
n+=str1;
x= Integer.parseInt(n);
m = JOptionPane.showInputDialog(this,"请输入客户代号,为默认三位数","客户代号",JOptionPane.QUESTION_MESSAGE);
m+=str2;
y= Integer.parseInt(m);
if(x<1000&&y<1000)
{JOptionPane.showMessageDialog(this,"您的车辆登入要求正确,继续" ,"检测结果",JOptionPane.INFORMATION_MESSAGE);}
} if(event.getSource()==btnderu)
{
btnderu.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
class Menul extends JFrame
{
JMenu Menu = new JMenu();
MenuBar mb1 = new MenuBar();
Menu f = new Menu("红星简介");
Menu m = new Menu("搜索区位");
Menu s = new Menu("服务客户");
TextField text = new TextField("欢迎光临红星汽车城", 30);
String[] flavors =
{ "Chocolate", "Strawberry",
"Vanilla Fudge Swirl", "Mint Chip",
"Mocha Almond Fudge", "Rum Raisin",
"Praline Cream", "Mud Pie"
};
CheckboxMenuItem[] safety =
{
new CheckboxMenuItem("Guard"),
new CheckboxMenuItem("Hide")
};
MenuItem[] file =
{
new MenuItem("Open"),
new MenuItem("Exit")
};
MenuBar mb2 = new MenuBar();
Menu fooBar = new Menu("客户评价/留言/签名");
MenuItem[] other =
{
new MenuItem("评价"),
new MenuItem("留言"),
new MenuItem("签名"),
};
Button b = new Button("Swap Menus");
public Menul()
{
for(int i = 0; i < flavors.length; i++)
{
m.add(new MenuItem(flavors[i]));
// Add separators at intervals:
if((i+1) % 3 == 0)
m.addSeparator();
}
for(int i = 0; i < safety.length; i++)
s.add(safety[i]);
f.add(s);
for(int i = 0; i < file.length; i++)
f.add(file[i]);
mb1.add(f);
mb1.add(m);
setMenuBar(mb1);
text.setEditable(false);
add("Center", text);
// Set up the system for swapping menus:
add("North", b);
for(int i = 0; i < other.length; i++)
fooBar.add(other[i]);
mb2.add(fooBar);
}
public boolean handleEvent(Event evt)
{
if(evt.id == Event.WINDOW_DESTROY)
System.exit(0);
else
return super.handleEvent(evt);
return true;
}
public boolean action(Event evt, Object arg)
{
if(evt.target.equals(b))
{
MenuBar m = getMenuBar();
if(m == mb1) setMenuBar(mb2);
else if (m == mb2) setMenuBar(mb1);
}
else if(evt.target instanceof MenuItem)
{
if(arg.equals("Open"))
{
String s = text.getText();
boolean chosen = false;
for(int i = 0; i < flavors.length; i++)
if(s.equals(flavors[i]))
chosen = true;
if(!chosen)
text.setText("Choose a flavor first!");
else
text.setText("Opening "+ s +". Mmm, mm!");
}
else if(evt.target.equals(file[1]))
System.exit(0);
// CheckboxMenuItems cannot use String
// matching; you must match the target:
else if(evt.target.equals(safety[0]))
text.setText("Guard the Ice Cream! " +"Guarding is " + safety[0].getState());
else if(evt.target.equals(safety[1]))
text.setText("Hide the Ice Cream! " +"Is it cold? " + safety[1].getState());
else
text.setText(arg.toString());
}
else
return super.action(evt, arg);
return true;
}
public void main(String[] args)
{
Menul f = new Menul();
f.resize(400,300);
f.setVisible(true);
}
}
}});
}
}
}
谢谢专家!!!
然后把接收登录的代码段改成下面的:if(event.getSource()==btnderu)
{
//如果想要隐藏主窗体的话,把下面的代码取消注释
//Hxqcc2.this.setVisible(false);
Menul f = new Menul();
f.resize(400,300);
f.setVisible(true);
}
import java.awt.event.*;import javax.swing.*;public class Hxqcc2 extends JFrame implements ActionListener {
private JButton btnenter, btnderu;
private JLabel lbl, lbl2;
private JPanel panel;
private int x, y;
private String n, m; public static void main(String[] args) {
Hxqcc2 frame = new Hxqcc2();
frame.setSize(500, 535);
frame.setTitle("红星汽车城服务系统");
frame.createGUI();
frame.setVisible(true);
} private void createGUI() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container window = getContentPane();
window.setBackground(Color.pink);
window.setLayout(new FlowLayout()); lbl = new JLabel();
lbl.setText("红星汽车城服务区欢迎您的到来");
lbl.setFont(new Font("隶书", Font.CENTER_BASELINE, 30));
lbl.setLocation(35, 0);
lbl.setSize(550, 68);
lbl.setForeground(Color.blue);
lbl.setHorizontalAlignment(JLabel.CENTER);
window.add(lbl); lbl2 = new JLabel();
panel = new JPanel();
lbl2.setIcon(new ImageIcon("hxqcc2.JPG"));
panel.setPreferredSize(new Dimension(443, 407));
panel.setBackground(Color.pink);
panel.add(lbl2);
window.add(panel); btnenter = new JButton("进入");
window.add(btnenter);
btnenter.setHorizontalAlignment(JLabel.CENTER);
btnenter.addActionListener(this); btnderu = new JButton("登录");
window.add(btnderu);
btnderu.setHorizontalAlignment(JLabel.CENTER);
btnderu.addActionListener(this);
} public void actionPerformed(ActionEvent event) {
if (event.getSource() == btnenter) {
String str1 = "", str2 = "";
n = JOptionPane.showInputDialog(this, "请输入车牌号码:", "车辆检验",
JOptionPane.QUESTION_MESSAGE);
n += str1;
x = Integer.parseInt(n);
m = JOptionPane.showInputDialog(this, "请输入客户代号,为默认三位数", "客户代号",
JOptionPane.QUESTION_MESSAGE);
m += str2;
y = Integer.parseInt(m);
if (x < 1000 && y < 1000) {
JOptionPane.showMessageDialog(this, "您的车辆登入要求正确,继续", "检测结果",
JOptionPane.INFORMATION_MESSAGE);
}
} if (event.getSource() == btnderu) { ////////////////////////////////////////////////
Menul menul=new Menul();//调用Menul 类
menul.setBounds(200, 300, 800, 600);//
menul.setVisible(true);//
setVisible(false);//
//////////////////////////////////////////////////////////
}
}
}/////////////////////////////////////////////////////////////////////////////////////////
//提出来做为一个单独的类.
class Menul extends JFrame {
JMenu Menu = new JMenu();
MenuBar mb1 = new MenuBar();
Menu f = new Menu("红星简介");
Menu m = new Menu("搜索区位");
Menu s = new Menu("服务客户");
TextField text = new TextField("欢迎光临红星汽车城", 30);
String[] flavors = { "Chocolate", "Strawberry", "Vanilla Fudge Swirl",
"Mint Chip", "Mocha Almond Fudge", "Rum Raisin", "Praline Cream",
"Mud Pie" };
CheckboxMenuItem[] safety = { new CheckboxMenuItem("Guard"),
new CheckboxMenuItem("Hide") };
MenuItem[] file = { new MenuItem("Open"), new MenuItem("Exit") };
MenuBar mb2 = new MenuBar();
Menu fooBar = new Menu("客户评价/留言/签名");
MenuItem[] other = { new MenuItem("评价"), new MenuItem("留言"),
new MenuItem("签名"), };
Button b = new Button("Swap Menus"); public Menul() {
for (int i = 0; i < flavors.length; i++) {
m.add(new MenuItem(flavors[i]));
// Add separators at intervals:
if ((i + 1) % 3 == 0)
m.addSeparator();
}
for (int i = 0; i < safety.length; i++)
s.add(safety[i]);
f.add(s);
for (int i = 0; i < file.length; i++)
f.add(file[i]);
mb1.add(f);
mb1.add(m);
setMenuBar(mb1);
text.setEditable(false);
add("Center", text);
// Set up the system for swapping menus:
add("North", b);
for (int i = 0; i < other.length; i++)
fooBar.add(other[i]);
mb2.add(fooBar);
} public boolean handleEvent(Event evt) {
if (evt.id == Event.WINDOW_DESTROY)
System.exit(0);
else
return super.handleEvent(evt);
return true;
} public boolean action(Event evt, Object arg) {
if (evt.target.equals(b)) {
MenuBar m = getMenuBar();
if (m == mb1)
setMenuBar(mb2);
else if (m == mb2)
setMenuBar(mb1);
} else if (evt.target instanceof MenuItem) {
if (arg.equals("Open")) {
String s = text.getText();
boolean chosen = false;
for (int i = 0; i < flavors.length; i++)
if (s.equals(flavors[i]))
chosen = true;
if (!chosen)
text.setText("Choose a flavor first!");
else
text.setText("Opening " + s + ". Mmm, mm!");
} else if (evt.target.equals(file[1]))
System.exit(0);
// CheckboxMenuItems cannot use String
// matching; you must match the target:
else if (evt.target.equals(safety[0]))
text.setText("Guard the Ice Cream! " + "Guarding is "
+ safety[0].getState());
else if (evt.target.equals(safety[1]))
text.setText("Hide the Ice Cream! " + "Is it cold? "
+ safety[1].getState());
else
text.setText(arg.toString());
} else
return super.action(evt, arg);
return true;
} public void main(String[] args) {
Menul f = new Menul();
f.resize(400, 300);
f.setVisible(true);
}
}
第一种方法....把你的Menul提出来不是蛮好.
用下面的第二种方法:不要用Hxqcc2类去implements ActionListener 而是用你对应的Button去侦听,注册事件.
package com.sysdynamic.test;import java.awt.*;
import java.awt.event.*;import javax.swing.*;public class Hxqcc2 extends JFrame {
private JButton btnenter, btnderu;
private JLabel lbl, lbl2;
private JPanel panel;
private int x, y;
private String n, m; public static void main(String[] args) {
Hxqcc2 frame = new Hxqcc2();
frame.setSize(500, 535);
frame.setTitle("红星汽车城服务系统");
frame.createGUI();
frame.setVisible(true);
} private void createGUI() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container window = getContentPane();
window.setBackground(Color.pink);
window.setLayout(new FlowLayout()); lbl = new JLabel();
lbl.setText("红星汽车城服务区欢迎您的到来");
lbl.setFont(new Font("隶书", Font.CENTER_BASELINE, 30));
lbl.setLocation(35, 0);
lbl.setSize(550, 68);
lbl.setForeground(Color.blue);
lbl.setHorizontalAlignment(JLabel.CENTER);
window.add(lbl); lbl2 = new JLabel();
panel = new JPanel();
lbl2.setIcon(new ImageIcon("hxqcc2.JPG"));
panel.setPreferredSize(new Dimension(443, 407));
panel.setBackground(Color.pink);
panel.add(lbl2);
window.add(panel); btnenter = new JButton("进入");
window.add(btnenter);
btnenter.setHorizontalAlignment(JLabel.CENTER); // /////////////////////////////////////////////// btnenter.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) { enter(e);
}
}); // /////////////////////////////////////////////// btnderu = new JButton("登录");
window.add(btnderu);
btnderu.setHorizontalAlignment(JLabel.CENTER); // /////////////////////////////////////////////// btnderu.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) { deru(e);
}
}); // ///////////////////////////////////////////////
} public void enter(ActionEvent event) {
if (event.getSource() == btnenter) {
String str1 = "", str2 = "";
n = JOptionPane.showInputDialog(this, "请输入车牌号码:", "车辆检验",
JOptionPane.QUESTION_MESSAGE);
n += str1;
x = Integer.parseInt(n);
m = JOptionPane.showInputDialog(this, "请输入客户代号,为默认三位数", "客户代号",
JOptionPane.QUESTION_MESSAGE);
m += str2;
y = Integer.parseInt(m);
if (x < 1000 && y < 1000) {
JOptionPane.showMessageDialog(this, "您的车辆登入要求正确,继续", "检测结果",
JOptionPane.INFORMATION_MESSAGE);
}
}
} public void deru(ActionEvent event) {
if (event.getSource() == btnderu) { // ////////////////////////////////////////////// Menul menul = new Menul();// 调用Menul 类
menul.setBounds(200, 300, 800, 600);//
menul.setVisible(true);//
setVisible(false);//
// ////////////////////////////////////////////////////////
}
}
}// ///////////////////////////////////////////////////////////////////////////////////////
// 提出来做为一个单独的类.
class Menul extends JFrame {
JMenu Menu = new JMenu();
MenuBar mb1 = new MenuBar();
Menu f = new Menu("红星简介");
Menu m = new Menu("搜索区位");
Menu s = new Menu("服务客户");
TextField text = new TextField("欢迎光临红星汽车城", 30);
String[] flavors = { "Chocolate", "Strawberry", "Vanilla Fudge Swirl",
"Mint Chip", "Mocha Almond Fudge", "Rum Raisin", "Praline Cream",
"Mud Pie" };
CheckboxMenuItem[] safety = { new CheckboxMenuItem("Guard"),
new CheckboxMenuItem("Hide") };
MenuItem[] file = { new MenuItem("Open"), new MenuItem("Exit") };
MenuBar mb2 = new MenuBar();
Menu fooBar = new Menu("客户评价/留言/签名");
MenuItem[] other = { new MenuItem("评价"), new MenuItem("留言"),
new MenuItem("签名"), };
Button b = new Button("Swap Menus"); public Menul() {
for (int i = 0; i < flavors.length; i++) {
m.add(new MenuItem(flavors[i]));
// Add separators at intervals:
if ((i + 1) % 3 == 0)
m.addSeparator();
}
for (int i = 0; i < safety.length; i++)
s.add(safety[i]);
f.add(s);
for (int i = 0; i < file.length; i++)
f.add(file[i]);
mb1.add(f);
mb1.add(m);
setMenuBar(mb1);
text.setEditable(false);
add("Center", text);
// Set up the system for swapping menus:
add("North", b);
for (int i = 0; i < other.length; i++)
fooBar.add(other[i]);
mb2.add(fooBar);
} public boolean handleEvent(Event evt) {
if (evt.id == Event.WINDOW_DESTROY)
System.exit(0);
else
return super.handleEvent(evt);
return true;
} public boolean action(Event evt, Object arg) {
if (evt.target.equals(b)) {
MenuBar m = getMenuBar();
if (m == mb1)
setMenuBar(mb2);
else if (m == mb2)
setMenuBar(mb1);
} else if (evt.target instanceof MenuItem) {
if (arg.equals("Open")) {
String s = text.getText();
boolean chosen = false;
for (int i = 0; i < flavors.length; i++)
if (s.equals(flavors[i]))
chosen = true;
if (!chosen)
text.setText("Choose a flavor first!");
else
text.setText("Opening " + s + ". Mmm, mm!");
} else if (evt.target.equals(file[1]))
System.exit(0);
// CheckboxMenuItems cannot use String
// matching; you must match the target:
else if (evt.target.equals(safety[0]))
text.setText("Guard the Ice Cream! " + "Guarding is "
+ safety[0].getState());
else if (evt.target.equals(safety[1]))
text.setText("Hide the Ice Cream! " + "Is it cold? "
+ safety[1].getState());
else
text.setText(arg.toString());
} else
return super.action(evt, arg);
return true;
} public void main(String[] args) {
Menul f = new Menul();
f.resize(400, 300);
f.setVisible(true);
}
}