java抽签源代码 html抽签代码

java抽签程序

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相关问答

Q1: JAVA抽签小程序

您好：package test;import java.util.HashSet;

import java.util.Set;

import java.util.Iterator;public class test {

public static void main(String[] args) {

Set set = new HashSet();

for (int i = 1; i = 100; i++) {

set.add(i);

}

Iterator it = set.iterator();

for (int i = 0; i set.size(); i++) {

if(it.hasNext()){

System.out.println(it.next());

}

}

}

}先把100放入set然后再随即找出来。另外一个想法是随即产生数java抽签源代码，放入list中判断是否重复，这样也达到这样java抽签源代码的效果。

Q2: 求一个分组抽签程序，谢谢了，java

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.util.Random;

import java.util.Vector;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class Ballot extends JFrame implements ActionListener,KeyListener{

//窗口组建，成员变量

JTextArea _txt;

JButton _ballot;

JTextField _print;

JScrollPane _panel;

int n_o_p;

int index;

int _index;

String[] names;

static VectorInteger num=new VectorInteger();

static Random r=new Random();

//

boolean num_print=true;

public static void main(String[] args) {

new Ballot();

}

public Ballot()

{

n_o_p=0;

index=0;

_index=0;

_txt=new JTextArea();

_txt.setText("请在上面输入人数，按Enter结束！");

_txt.setEditable(false);

_panel=new JScrollPane(_txt);

_ballot=new JButton("抽签");

_print=new JTextField(10);

this.setLayout(new BorderLayout());

this.add(_panel,BorderLayout.CENTER);

this.add(_print,BorderLayout.NORTH);

this.add(_ballot,BorderLayout.SOUTH);

_print.addKeyListener(this);

_ballot.addActionListener(this);

this.setVisible(true);

this.setSize(new Dimension(400,200));

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if(e.getSource()==_ballot)

{

if(index==n_o_p_index!=index)

{

boolean _b=true;

while(_b)

{

int _i=r.nextInt(index);

for(int i=0;inum.size();i++)

{

if(_i==num.get(i))

{

num.remove(i);

_txt.append("\r\n序号"+_i+" 姓名："+names[_index]);

_index++;

_b=false;

}

}

}

}

if(_index==index)

{

File f=new File(System.getProperty("user.dir")+"/Save.txt");

if(f.exists())

{

try {

OutputStreamWriter ow=new OutputStreamWriter(new FileOutputStream(f));

ow.write(_txt.getText());

ow.close();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

}else

{

try {

f.createNewFile();

OutputStreamWriter ow=new OutputStreamWriter(new FileOutputStream(f));

ow.write(_txt.getText());

ow.close();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}finally

{

_txt.setText("信息以保存至"+f.getPath()+"下！");

}

}

}

}

}

@Override

public void keyPressed(KeyEvent e) {

// TODO Auto-generated method stub

if(e.getKeyCode()==KeyEvent.VK_ENTER)

{

if(num_print){

if(_print.getText().matches("[0-9]+"))

{

num_print=false;

n_o_p=Integer.parseInt(_print.getText());

names=new String[n_o_p];

_print.setText("");

_txt.setText("还需要输入"+n_o_p+"个人名！按回车完成单个人名输入！");

}else

{

_txt.setText("输入的人数非法！请重新输入！");

}

}else

{

if(_print.getText()!=null!_print.getText().equals("")index!=n_o_p)

{

names[index]=_print.getText();

index++;

_txt.setText("还需要输入"+(n_o_p-index)+"个人名！按回车完成单个人名输入！");

}

}

if(index==n_o_p)

{

for(int i=0;iindex;i++)

{

num.add(i);

}

_txt.setText("请点击按钮进行抽签！");

}

}

}

@Override

public void keyReleased(KeyEvent e) {

// TODO Auto-generated method stub

}

@Override

public void keyTyped(KeyEvent e) {

// TODO Auto-generated method stub

}

}

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