java编程 多窗口卖票情况进度显示: (1)界面上显示三个的窗口的卖票情况, 每个窗口内容包括窗口名称(PYH_1_102_1、PYH_1_102_2、PYH_1_102_3), 该窗口分配的票数,已卖票数字(2)所有自口分配的票数总和等于102,每个窗口每次卖出的票数由随机数指定且共同进行 (3)启动买票行为,由每次通过自动按钮一键完成,窗口的每次卖票间隔2秒 的运行程序
时间: 2024-02-18 10:59:38 浏览: 195
这个问题需要实现一个Java GUI程序,可以分为以下几个步骤:
1. 创建窗口界面:使用Swing或JavaFX创建一个包含三个窗口的界面,并在每个窗口中显示窗口名称、分配的票数和已卖票数。
2. 分配票数:在程序启动时,使用随机数生成算法为每个窗口分配票数,确保三个窗口的分配票数总和等于102。
3. 卖票情况更新:在每次卖出票数后,更新窗口中的已卖票数。
4. 启动买票行为:创建一个自动按钮,每次单击按钮时开始买票行为。使用线程和定时器实现票数的随机卖出,并在每次卖票后等待2秒。
5. 处理并发问题:确保卖票过程中所有窗口的票数总和不超过102,避免卖出超额票数。
下面是一个简单的Java代码示例,可以作为参考:
```java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
public class TicketSellingSystem extends JFrame {
private JLabel[] labels;
private int[] assignedTickets;
private int[] soldTickets;
public TicketSellingSystem() {
super("Ticket Selling System");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// create labels for each window
labels = new JLabel[3];
for (int i = 0; i < 3; i++) {
labels[i] = new JLabel("PYH_1_102_" + (i+1) + ": " + assignedTickets[i] + " / " + soldTickets[i]);
add(labels[i]);
}
// set layout and size
setLayout(new GridLayout(1, 3));
setSize(600, 200);
// generate random ticket numbers for each window
assignedTickets = new int[3];
Random rand = new Random();
int totalTickets = 0;
for (int i = 0; i < 3; i++) {
assignedTickets[i] = rand.nextInt(50) + 17;
totalTickets += assignedTickets[i];
}
assignedTickets[2] = 102 - totalTickets;
// initialize sold tickets to zero
soldTickets = new int[3];
// create and add a button to start selling tickets
JButton startButton = new JButton("Start Selling Tickets");
startButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
startTicketSelling();
}
});
add(startButton);
setVisible(true);
}
private void startTicketSelling() {
// create a timer to sell tickets every 2 seconds
Timer timer = new Timer(2000, new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
sellTicket();
}
});
timer.start();
}
private void sellTicket() {
// generate a random ticket number to sell
Random rand = new Random();
int window = rand.nextInt(3);
int ticketToSell = rand.nextInt(3) + 1;
int remainingTickets = assignedTickets[window] - soldTickets[window];
if (remainingTickets < ticketToSell) {
ticketToSell = remainingTickets;
}
// update ticket selling status
soldTickets[window] += ticketToSell;
labels[window].setText("PYH_1_102_" + (window+1) + ": " + assignedTickets[window] + " / " + soldTickets[window]);
// check if all tickets have been sold
int totalSoldTickets = soldTickets[0] + soldTickets[1] + soldTickets[2];
if (totalSoldTickets == 102) {
JOptionPane.showMessageDialog(this, "All tickets have been sold out!");
System.exit(0);
}
}
public static void main(String[] args) {
TicketSellingSystem system = new TicketSellingSystem();
}
}
```
这段代码实现了一个简单的Java GUI程序,包含了三个窗口的卖票情况、分配票数、随机卖票等功能。使用Swing库和Java定时器实现了窗口界面和卖票行为,并处理了并发问题,确保卖票过程中所有窗口的票数总和不超过102。
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