幸运观众手机号码提取器的 JAVA 课程项目
最编程
2024-04-08 13:54:09
...
一、 大型实验的内容
开发一个简单的幸运观众手机号码抽取程序,要求在理解Java多线程原理基础上,设定简单的抽取人数、获奖等级等参数后,能随机抽取存在文本文件中(每行放一个手机号和归属地)的若干个观众手机号码,显示时隐藏最后两位号码,并同时显示该手机号码的所属地。
二,、 系统功能具体描述为:
1、 设置获奖等级和抽奖人数
本程序默认为三等奖5人。
设置时会清空JexstField里的内容,并且会暂停抽取程序的运行,当设置人数的时候,中间可编辑的文本框也会改变。
2.开始按钮
点击时在文本框里不停的变换显示从information.txt里读取的手机号码
3、结束按钮
文本框内停止变换,显示结束时所显示的手机号码及地址
实现代码如下:
import java.awt.*; import java.util.*; import javax.swing.*; import java.awt.event.*; import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; public class Luckymode extends JFrame implements Runnable { JLabel jnum,jtype; //文本”设置获奖人数:“ JComboBox phonenum, prize; JButton start, end; int number = 4; boolean isrun = false; int i; String textname="E:/information.txt"; JTextField text[] = new JTextField[10]; Vector<String> v=new Vector<String>(); Luckymode(String s) { super(s); initComponents(); } public void initComponents() { //界面初始化及监听事件 Container jtogether = getContentPane(); JPanel jup = new JPanel(); jup.setLayout(new FlowLayout()); jnum = new JLabel("人数:"); jtype=new JLabel("奖项:"); String[] str = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" }; String[] strtype={"一等奖","二等奖","三等奖"}; prize = new JComboBox(strtype); prize.setSelectedIndex(2); prize.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { isrun = false; start.setEnabled(true); end.setEnabled(false); for (i = 0; i < 10; i++) { text[i].setText(""); } } }); phonenum = new JComboBox(str); phonenum.setSelectedIndex(4); phonenum.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (e.getSource() == phonenum) { isrun = false; start.setEnabled(true); end.setEnabled(false); number = phonenum.getSelectedIndex(); for (i = 0; i < 10; i++) { text[i].setEditable(true); text[i].setText(""); } if (number != 10) { for (i = number+1; i < 10; i++) { text[i].setEditable(false); } } } } }); jup.add(jtype); jup.add(prize); jup.add(jnum); jup.add(phonenum); JPanel jtemp=new JPanel(); jtemp.setLayout(new BorderLayout()); JPanel j1=new JPanel(); j1.add(new JLabel(" ")); JPanel j2=new JPanel(); j2.add(new JLabel(" ")); JPanel jcenter = new JPanel(); jcenter.setLayout(new GridLayout(10, 1, 20, 0)); for (i = 0; i < 10; i++) { text[i] = new JTextField(""); text[i].setHorizontalAlignment(JTextField.CENTER ); jcenter.add(text[i]); } for (i = number+1; i < 10; i++) { text[i].setEditable(false); } jtemp.add("Center",jcenter); jtemp.add("West",j1); jtemp.add("East",j2); JPanel jdown = new JPanel(); jdown.setLayout(new FlowLayout()); start = new JButton("开始"); end = new JButton("结束"); start.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { isrun = true; start.setEnabled(false); end.setEnabled(true); } }); end.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { isrun = false; start.setEnabled(true); end.setEnabled(false); } }); end.setEnabled(false); jdown.add(start); jdown.add(end); jtogether.setLayout(new BorderLayout()); jtogether.add("North", jup); jtogether.add("Center", jtemp); jtogether.add("South", jdown); textinfile(); setVisible(true); } public String texthand(String a){//将从文件读入的数据处理 String restring,s1,s2; s1=a.substring(11); s2=a.substring(0,9); restring=s2+"**"+s1; return restring; } public void textinfile() { FileReader f; //将文件中手机号码信息读入vector try { f = new FileReader("E:/information.txt"); BufferedReader br = new BufferedReader(f); String strline=br.readLine() ; while(strline!=null){ v.add(texthand(strline)); strline=br.readLine(); } br.close(); f.close(); } catch (FileNotFoundException e) { e.printStackTrace(); }catch (IOException e) { e.printStackTrace(); } } public void run() { //线程运行 int k=0; while (true) { if(isrun){ int m=(int) (Math.random() * 100) + 50; try { Thread.sleep(m); } catch (Exception e) { e.printStackTrace(); } for (i = 0; i <=number; i++) { if(k>=v.size()){k=0;} text[i].setText(v.get(k)); //在text[i]中随机显示手机号码 k++; } } } } public static void main(String[] args) { Luckymode luck = new Luckymode("幸运手机号码抽取"); luck.setSize(300, 450); luck.setLocation(800, 300); luck.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Thread t1 = new Thread(luck); t1.start(); Thread t2 = new Thread(luck); t2.start(); Thread t3 = new Thread(luck); t3.start(); } }
效果演示: E盘的文件: