package com;

import java.awt.Color;

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.util.ArrayList;

import java.util.List;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

public class MainFrame extends JFrame {

private List<String> names = null;// 8

private JLabel labShowName = null;

private JButton jbnStartEnd = null;

public MainFrame() {

this.setSize(220, 150);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setLayout(new GridLayout(2, 1));

labShowName = new JLabel("天地");

labShowName.setFont(new Font(null, 0, 20));

labShowName.setForeground(Color.blue);

jbnStartEnd = new JButton("开始");

this.add(labShowName);

this.add(jbnStartEnd);

names = new ArrayList<String>();

this.init();

labShowName.setText("共 " + names.size() + "人");

jbnStartEnd.addActionListener(new ActionListener() {

ShowNameByRandomThread showNameByRandomThread = null;

ShanNameThread shanNameThread = null;

public void actionPerformed(ActionEvent e) {

JButton es = (JButton) e.getSource();

String text = es.getText();

if (text.equals("开始")) {

es.setText("结束");

if (shanNameThread != null) {

shanNameThread.close();

shanNameThread = null;

}

showNameByRandomThread = new ShowNameByRandomThread(names,

labShowName);

new Thread(showNameByRandomThread).start();

} else if (text.equals("结束")) {

es.setText("开始");

if (showNameByRandomThread != null) {

showNameByRandomThread.close();

showNameByRandomThread = null;

}

shanNameThread = new ShanNameThread(labShowName);

new Thread(shanNameThread).start();

}

}

});

this.setLocationRelativeTo(null);

this.setVisible(true);

}

private class ShowNameByRandomThread implements Runnable {

private List<String> names = null;

private JLabel labShowName = null;

public ShowNameByRandomThread(List<String> names, JLabel labShowName) {

this.names = names;

this.labShowName = labShowName;

}

private boolean sw = true;

public void run() {

while (sw) {

String ranName = names

.get((int) (Math.random() * names.size()));

labShowName.setText(ranName);

try {

Thread.sleep(100);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

public void close() {

this.sw = false;

}

}

private class ShanNameThread implements Runnable {

private JLabel labShowName = null;

private boolean sw = true;

public ShanNameThread(JLabel labShowName) {

this.labShowName = labShowName;

}

public void run() {

labShowName.setForeground(Color.red);

while (sw) {

labShowName.setVisible(false);

try {

Thread.sleep(300);

} catch (InterruptedException e) {

e.printStackTrace();

}

labShowName.setVisible(true);

try {

Thread.sleep(500);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

public void close() {

this.sw = false;

}

}

private void init() {

try {

InputStream is = MainFrame.class.getClassLoader()

.getResourceAsStream("names.txt");

BufferedReader in = new BufferedReader(new InputStreamReader(is));

String name = null;

while ((name = in.readLine()) != null) {

if (name != null && name.trim().length() > 0) {

names.add(name);

}

}

} catch (IOException e) {

e.printStackTrace();

}

}

public static void main(String[] args) {

new MainFrame();

}

}