摇号机代码

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文件名称：摇号机代码

文件大小：15KB

文件格式：DOC

更新时间：2016-02-04 13:40:35

摇号机

关于摇号机的JAVA代码import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Luck extends JFrame implements ActionListener{ JTextField tf = new JTextField(); JButton b1 = new JButton("开始"); JButton b2 = new JButton("停止"); boolean isGo = false; public Luck(){ b1.setActionCommand("start"); JPanel p = new JPanel(); p.add(b1); p.add(b2); b1.addActionListener(this); b2.addActionListener(this); b2.setEnabled(false); this.getContentPane().add(tf,"North"); this.getContentPane().add(p,"South"); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setSize(300,200); this.setLocation(300,300); Cursor cu = new Cursor(Cursor.HAND_CURSOR); this.setCursor(cu); this.setVisible(true); tf.setText("welcome you! "); this.go(); } public void go(){ while(true){ if(isGo == true){ String s = ""; for(int j = 1; j <= 8;j++){ int i = (int)(Math.random() * 31) + 1; if(i < 10){ s = s + " 0" + i; }else{ s = s + " " + i; } } tf.setText(s); } try{ Thread.sleep(10); }catch(java.lang.InterruptedException e){ e.printStackTrace(); } } } public void actionPerformed(ActionEvent e){ String s = e.getActionCommand(); if(s.equals("start")){ isGo = true; b1.setEnabled(false); b2.setEnabled(true); }else{ isGo = false; b2.setEnabled(false); b1.setEnabled(true); } } public static void main(String[] args){ new Luck(); }}