使用java语言编写一个抽奖系统

package ch07;

import javaxswing;

public class Test2 {

 public static void main(String[] args) {

  String output="";

  output+="恭喜第"+(1+(int)(Mathrandom()100))+"号中了一等奖";

  output+="\n恭喜第"+(1+(int)(Mathrandom()100))+"号"+(int)(1+(Mathrandom()100))+"号"+"中了二等奖";

   for(int i=0;i<3;i++){

    output+="\n恭喜第"+(1+(int)(Mathrandom()100))+"号中了三等奖";   

          }

    JOptionPaneshowMessageDialog(null, output);

 }

}

程序运行结果截图

中奖的人是随机的！

import javautilScanner;

public class Test {

public static void main(String[] args) {

Scanner input=new Scanner(Systemin);

int x=inputnextInt();

switch (x) {

case 1:

Systemoutprintln("一等奖");

break;

case 2:

Systemoutprintln("二等奖");

break;

case 3:

Systemoutprintln("三等奖");

break;

default:

break;

}

}

}

找了两组程序：

代码一：

import javaawt;

import javaawtevent;

import javaxswing;

class GoodLucky extends JFrame implements ActionListener

{

JTextField tf = new JTextField();

JButton b1 = new JButton("开始");

JButton b2 = new JButton("停止");

boolean sg=false;

public GoodLucky(){

b1setActionCommand("start");

JPanel p = new JPanel();

padd(b1);

padd(b2);

b1addActionListener(this);

b2addActionListener(this);

b2setEnabled(false);

thisgetContentPane()add(tf,"North");

thisgetContentPane()add(p,"South");

thissetDefaultCloseOperation(JFrameEXIT_ON_CLOSE);

thissetSize(300,200);

thissetLocation(300,300);

Cursor cu = new Cursor(CursorHAND_CURSOR);

thissetCursor(cu);

thissetVisible(true);

tfsetText("祝大家鸿运！");

thisgo();

}

public void go()

{

while(true)

{

if(sg==true)

{

String s = " ";

for(int j = 1; j <= 7;j++)

{

int i = (int)(Mathrandom() 9) + 1;

if(i < 10)

{

s = s + " 0" + i;

}

else

{

s = s + " " + i;

}

}

tfsetText(s);

}

try

{

Threadsleep(100);

}

catch(javalangInterruptedException e)

{

eprintStackTrace();

}

}

}

public void actionPerformed(ActionEvent e)

{

String s = egetActionCommand();

if(sequals("start"))

{

sg = true;

b1setEnabled(false);

b2setEnabled(true);

}

else

{

sg= false;

b2setEnabled(false);

b1setEnabled(true);

}

}

public static void main(String[] args)

{

new GoodLucky();

}

}

代码二：

package comsofteemlesson03;

import javaawtBorderLayout;

import javaawtContainer;

import javaawtFont;

import javaawteventMouseAdapter;

import javaawteventMouseEvent;

import javaxswingJButton;

import javaxswingJFrame;

import javaxswingJLabel;

import javaxswingJPanel;

import javaxswingJTextField;

public class LuckyNumberInterface extends JFrame {

JLabel ltitle = new JLabel("欢迎使用本抽奖机", JLabelCENTER);

JLabel linput = new JLabel("幸运号码：");

JTextField input = new JTextField(20);

JButton btnStart = new JButton("开始");

JButton btnStop = new JButton("停止");

JPanel lpanel = new JPanel();

JPanel btnPanel = new JPanel();

public LuckyNumberInterface() {

super("抽奖机");

final LuckyNumber ln = new LuckyNumber(input);

lnstart();

Container container = getContentPane();

lpaneladd(linput);

lpaneladd(input);

btnPaneladd(btnStart);

btnPaneladd(btnStop);

Font font = new Font("宋体", FontBOLD, 16);

ltitlesetFont(font);

containeradd(ltitle, BorderLayoutNORTH);

containeradd(lpanel, BorderLayoutCENTER);

containeradd(btnPanel, BorderLayoutSOUTH);

btnStartaddMouseListener(new MouseAdapter() {

@Override

public void mouseClicked(MouseEvent arg0) {

lnsetFlag(true);

}

});

btnStopaddMouseListener(new MouseAdapter() {

@Override

public void mouseClicked(MouseEvent arg0) {

lnsetFlag(false);

}

});

setDefaultCloseOperation(EXIT_ON_CLOSE);

setSize(400, 120);//设置窗口的显示大小

setLocation(400, 300);//设置窗口显示的位置

setVisible(true);//显示窗口

}

public static void main(String[] args) {

new LuckyNumberInterface();

}

}

package comsofteemlesson03;

import javatextDecimalFormat;

import javautilRandom;

import javaxswingJTextField;

public class LuckyNumber extends Thread {

private String luckyNumber = "";

private boolean flag = false;//开关

private JTextField input;

public LuckyNumber(JTextField input) {

thisinput = input;

}

public void setFlag(boolean flag) {

thisflag = flag;

}

@Override

public void run() {

while (true) {

if (flag) {

generatorLuckyNumber();

}

}

}

public void generatorLuckyNumber() {

String[] firstNumber = { "130", "131", "134", "137", "135", "139",

"150", "151", "155", "158", "159" };

Random rd = new Random();

int number = rdnextInt(10000);

DecimalFormat df = new DecimalFormat("0000");

String lastNumber = dfformat(number);

luckyNumber = firstNumber[rdnextInt(firstNumberlength)] + ""

+ lastNumber;

inputsetText("");

inputsetText(luckyNumber);

}

}

以上就是关于使用java语言编写一个抽奖系统全部的内容，包括:使用java语言编写一个抽奖系统、Java编程 编写一程序 它运行都等待从键盘输入一个1到3的整数 然后输出一 二 三等奖 （SWITCH语句)、能帮忙用java做一个抽奖程序吗，就是简单的一，二，三等奖，特等奖。谢谢等相关内容解答，如果想了解更多相关内容，可以关注我们，你们的支持是我们更新的动力！