数据结构（java编程）的看病排队候诊问题

启动两个线程，A线程-叫号线程，B线程-取号线程

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建立一个队列（ArrayQueue ），用来放号

A线程叫号，就从队列拿一个号，该线程可能有多个，对应多个医生，所以叫号时要同步

B线程取号，就一个线程，对应一台取号机

用java实现银行排队程序，要求模拟银行的业务排队系统，要有界面，实现完成的排队和叫号

import java.awt.Color;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import javax.swing.ButtonGroup;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

public class BankWaiting extends JFrame implements ActionListener {

int total = 0, now = 0;

boolean is1Ready = false, is2Ready = false, is3Ready = false;

int call1, call2, call3;

JFrame jf;

JLabel jr, jl, jl1, j2, jl2, j3, jl3;

JTextField jr4;

JButton jb, jb1, jb2, j1;

JButton workBut1, workBut2, workBut3;

JPanel jp, jp1, jp2;

public BankWaiting() {

setLayout(null);

jf = new JFrame("银行叫号程序");// 窗体

jr = new JLabel("请**号到*号窗口办理业务");

jr.setBounds(300, 10, 800, 50);

jr.setForeground(Color.red);

j1 = new JButton("取号");

j1.addActionListener(this);

jr4 = new JTextField("欢迎");

jr4.setEditable(false);

ButtonGroup bg = new ButtonGroup();

bg.add(j1);

jp = new JPanel();

jl = new JLabel("一号窗口");

jl1 = new JLabel("一号窗口，欢迎你！");

jb = new JButton("下一位");

workBut1 = new JButton("开始办理");

workBut1.addActionListener(this);

jb.addActionListener(this);

jp.setBackground(Color.pink);

jp.setSize(200, 80);// 大小

jp.setLocation(20, 120); // 位置

jf.setLayout(null);

jp1 = new JPanel();

j2 = new JLabel("二号窗口");

jl2 = new JLabel("二号窗口，欢迎你！");

jb1 = new JButton("下一位");

workBut2 = new JButton("开始办理");

jb1.addActionListener(this);

workBut2.addActionListener(this);

jp1.setBackground(Color.pink);

jp1.setSize(200, 80);// 大小

jp1.setLocation(250, 120); // 位置

jf.setLayout(null);

jp2 = new JPanel();

j3 = new JLabel("三号窗口");

jl3 = new JLabel("三号窗口，欢迎你！");

jb2 = new JButton("下一位");

workBut3 = new JButton("开始办理");

workBut3.addActionListener(this);

jb2.addActionListener(this);

jp2.setBackground(Color.pink);

jp2.setSize(200, 80);// 大小

jp2.setLocation(500, 120); // 位置

jf.setLayout(null);

jf.add(jp);

jf.add(jp1);

jf.add(jp2);

jf.add(jr);

jp.add(jl);

jp.add(jl1);

jp.add(jb);

jp.add(workBut1);

jp1.add(j2);

jp1.add(jl2);

jp1.add(jb1);

jp1.add(workBut2);

jp2.add(j3);

jp2.add(jl3);

jp2.add(jb2);

jp2.add(workBut3);

jf.add(j1);

jf.add(jr4);

j1.setBounds(550, 300, 60, 30);

jr4.setBounds(300, 300, 200, 40);

jf.setSize(800, 600);

jf.setVisible(true);

jf.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

}

public void actionPerformed(ActionEvent e) {

String s = "";

if (e.getSource() == j1) {

s = "第" + (++total) + "号，前面还有" + (total - now - 1) + "位顾客!";

jr4.setText(s);

}

if (e.getSource() == jb) {

if (this.hasCustomers()) {

s = "请" + (++now) + "号顾客到一号窗口办理";

call1 = now;

jl1.setText(s);

jr.setText(s);

is1Ready = true;

} else {

s = "当前已经没有顾客了";

jl1.setText(s);

is1Ready = false;

}

} else if (e.getSource() == jb1) {

if (this.hasCustomers()) {

s = "请" + (++now) + "号顾客到二号窗口办理";

call2 = now;

jl2.setText(s);

jr.setText(s);

is2Ready = true;

} else {

s = "当前已经没有顾客了";

jl2.setText(s);

is2Ready = false;

}

} else if (e.getSource() == jb2) {

if (this.hasCustomers()) {

s = "请" + (++now) + "号顾客到三号窗口办理";

call3 = now;

jl3.setText(s);

jr.setText(s);

is3Ready = true;

} else {

s = "当前已经没有顾客了";

jl3.setText(s);

is3Ready = false;

}

}

if (e.getSource() == workBut1) {

if (is1Ready) {

s = call1 + "号顾客正在办理业务。。。";

jl1.setText(s);

is1Ready = false;

}

} else if (e.getSource() == workBut2) {

if (is2Ready) {

s = call2 + "号顾客正在办理业务。。。";

jl2.setText(s);

is2Ready = false;

}

} else if (e.getSource() == workBut3) {

if (is3Ready) {

s = call3 + "号顾客正在办理业务。。。";

jl3.setText(s);

is3Ready = false;

}

}

}

public boolean hasCustomers() {

if (now total) {

return true;

} else {

return false;

}

}

public static void main(String[] args) {

new BankWaiting();

}

}

如何用java语言编写一个叫学号器，比如班里有五十个同学，按一下按钮，随机叫出一个同学的名字！求详细代

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.*;

public class test extends JFrame{

String[] student;

JLabel jl;

test(String[] s){

student=s;

JPanel jp=new JPanel();

JButton jb=new JButton("叫号");

jl=new JLabel();

jp.add(jb);

jp.add(jl);

this.getContentPane().add(jp);

jb.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

jl.setText(student[(int)Math.floor(Math.random()*50)]);

}

});

this.setTitle("叫号器");

this.setSize(200,100);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setLocationRelativeTo(null);

this.setVisible(true);

}

public static void main(String[] args)throws Exception {

String[] student=new String[50];

for (int i = 0;i student.length; i++) {

student[i] = "小"+(int)Math.floor(Math.random()*50);

}

new test(student);

}

}

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