package thread;

import java.awt.BorderLayout;

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.border.EmptyBorder;

import javax.swing.JLabel;

import javax.swing.JTextField;

public class Thread1 extends JFrame implements Runnable ,ActionListener {

    private JPanel contentPane;

    private JTextField text;

    private JLabel ah = new JLabel("a");

    private Thread giveLetter=new Thread(this);

    private int score=0;

    private     JLabel defen = new JLabel("\u5F97\u52060");

    /**

     * Launch the application.

     */

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable() {

            public void run() {

                try {

                    Thread1 frame = new Thread1();

                    frame.setVisible(true);

                } catch (Exception e) {

                    e.printStackTrace();

                }

            }

        });

    }

    /**

     * Create the frame.

     */

    public Thread1() {

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setBounds(100, 100, 670, 129);

        contentPane = new JPanel();

        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

        contentPane.setLayout(new BorderLayout(0, 0));

        setContentPane(contentPane);

        JPanel panel = new JPanel();

        contentPane.add(panel, BorderLayout.CENTER);

        JLabel label = new JLabel("\u663E\u793A\u5B57\u6BCD");

        panel.add(label);

        panel.add(ah);

        JLabel label_1 = new JLabel("\u8F93\u5165\u663E\u793A\u7684\u5B57\u6BCD");

        panel.add(label_1);

        text = new JTextField();

        panel.add(text);

        text.setColumns(10);

        panel.add(defen);

        text.addActionListener(this);

        giveLetter.start();

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        // TODO 自动生成的方法存根

        String letter=ah.getText().trim();

        String daan=text.getText();

        if(letter.equals(daan)){

            score++;

            defen.setText("score"+score);

            text.setText(null);

            validate();

            giveLetter.interrupt();

        }

        text.setText(null);

    }

    @Override

    public void run() {

        // TODO 自动生成的方法存根

        char c='a';

        for(;;){

            ah.setText(""+c+" ");

            validate();

            c=(char)(c+1);

            if(c>'z')

                c='a';

            System.out.println(c);

            try{

                Thread.sleep(2000);

            }

            catch(Exception e){

                System.out.println(e.getMessage());

            }

        }

    }

}

计时器

package thread;

import java.awt.BorderLayout;

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.text.SimpleDateFormat;

import java.util.Date;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.border.EmptyBorder;

public class Thread1 extends JFrame implements Runnable ,ActionListener {

    private JPanel contentPane;

    private Thread thread1=new Thread(this);

    private boolean live=true;

    JTextArea text = new JTextArea();

    JButton start = new JButton("New button");

    JButton stop = new JButton("New button");

    SimpleDateFormat format=new SimpleDateFormat("hh:mm:ss");

    /**

     * Launch the application.

     */

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable() {

            public void run() {

                try {

                    Thread1 frame = new Thread1();

                    frame.setVisible(true);

                } catch (Exception e) {

                    e.printStackTrace();

                }

            }

        });

    }

    /**

     * Create the frame.

     */

    public Thread1() {

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setBounds(100, 100, 343, 417);

        contentPane = new JPanel();

        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

        contentPane.setLayout(new BorderLayout(0, 0));

        setContentPane(contentPane);

        JPanel panel = new JPanel();

        contentPane.add(panel, BorderLayout.NORTH);

        panel.add(start);

        panel.add(stop);

        JPanel panel_1 = new JPanel();

        contentPane.add(panel_1, BorderLayout.CENTER);

        JScrollPane scrollPane = new JScrollPane();

        panel_1.add(scrollPane);

        text.setRows(14);

        text.setColumns(17);

        scrollPane.setViewportView(text);

        start.addActionListener(this);

        stop.addActionListener(this);

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        if(e.getSource()==start){

            thread1.start();

        }

        else if(e.getSource()==stop){

            live=false;

        }

    }

    @Override

    public void run() {

        for(;;){

            Date date1=new Date();

            text.append(format.format(date1)+"\n");

            try{

                Thread.currentThread().sleep(1000);

            }

            catch(Exception e){

                System.out.println(e.getMessage());

            }

            if(!live)

                return;

        }

    }

}

计时器线程

一个很方便的Timer类，在javax.swing包中，

它感觉就像一个有for循环的线程一样，隔一段时间调用一次，不过他的调用了通过监听器实现的

两个构造方法

Timer(int a)

Timer(int a,Object b)b是实现了ActionListener接口中actionPerformed方法的类，而且还要是JFrame,JButton等组件类的实例

还有三个方法 start(),stop(),restart()

相当线程的 strat(),wart(),notify()

测试代码

package thread;

import java.awt.BorderLayout;

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.text.SimpleDateFormat;

import java.util.Date;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.border.EmptyBorder;

import javax.swing.JTextField;

import javax.swing.Timer;

public class Thread1 extends JFrame implements ActionListener {

    private Timer time=new Timer(1000,this);

    private JPanel contentPane;

    private Thread thread1;

    private boolean live=true;

    JButton start = new JButton("start");

    JButton continue1 = new JButton("continue");

    JButton stop = new JButton("stop");

    SimpleDateFormat format=new SimpleDateFormat("hh:mm:ss");

    private JTextField text;

    /**

     * Launch the application.

     */

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable() {

            public void run() {

                try {

                    Thread1 frame = new Thread1();

                    frame.setVisible(true);

                } catch (Exception e) {

                    e.printStackTrace();

                }

            }

        });

    }

    /**

     * Create the frame.

     */

    public Thread1() {

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setBounds(100, 100, 502, 181);

        contentPane = new JPanel();

        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

        contentPane.setLayout(new BorderLayout(0, 0));

        setContentPane(contentPane);

        JPanel panel = new JPanel();

        contentPane.add(panel, BorderLayout.NORTH);

        panel.add(start);

        panel.add(stop);

        panel.add(continue1);

        JPanel panel_1 = new JPanel();

        contentPane.add(panel_1, BorderLayout.CENTER);

        text = new JTextField();

        panel_1.add(text);

        text.setColumns(13);

        start.addActionListener(this);

        stop.addActionListener(this);

        continue1.addActionListener(this);

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        if(e.getSource()==time){

            Date date=new Date();

            text.setText(format.format(date));

            int x=text.getBounds().x;

            int y=text.getBounds().y;

            y+=2;

            x-=2;

            text.setLocation(x,y);

        }

        else if(e.getSource()==start){

            time.start();

        }

        else if(e.getSource()==stop){

            time.stop();

        }

        else if(e.getSource()==continue1){

            time.restart();

        }

    }

}

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