创建两个线程，每个线程的工作都是在自己的界面的TextField区域中从左到右动态地显示一个字符串|JAVAjava资资的博客-

package packMutil; import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Muti1 extends WindowAdapter implements ActionListener { public static JFrame f = new JFrame("Welcome"); public static MyThread mt1 = new MyThread("Welcome!"); public static MyThread mt2 = new MyThread("How are you?"); public static void main(String args[]) {   Muti1 ltr = new Muti1();   ltr.dispaly();   mt1.start();   mt1.setButton();   mt2.start();   mt2.setButton(); } public void dispaly() {   f.setSize(400,240);   f.setLocation(200,140);   f.setBackground(Color.LIGHT_GRAY);   f.setLayout(new GridLayout(4,1));   f.addWindowListener(this);   f.setVisible(true); } public void windowClosing(WindowEvent e) {   System.exit(0); } public void actionPerformed(ActionEvent e) { if((e.getSource()==mt1.aButton)||(e.getSource()==mt1.bButton)) { actionPerformed(e,mt1); } if((e.getSource()==mt2.aButton)||(e.getSource()==mt2.bButton)) { actionPerformed(e,mt2); } } public void actionPerformed(ActionEvent e,MyThread mt) { if(e.getSource() == mt.aButton) {    mt.SleepTime = Integer.parseInt(mt.bField.getText());    mt.setButton(); } if(e.getSource() == mt.bButton) {    mt.interrupt();    mt.setButton(); } } } 

package packMutil; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.lang.String; public class MyThread extends Thread {  JPanel p;  JLabel alabel;  JTextField aField;  JTextField bField;  JButton aButton;  JButton bButton; //随机睡眠时间 int SleepTime = (int)(Math.random()*100); //构造函数 public MyThread(String str) { super(str); //调用父类的含参构造函数 for(int i=0;i<100;i++) {    str = str +" "; }   aField = new JTextField(str);   Muti1.f.add(aField);   p = new JPanel();   p.setLayout(new FlowLayout(FlowLayout.LEFT));   alabel = new JLabel("Sleep");   bField = new JTextField(""+SleepTime);   p.add(alabel);   p.add(bField);   aButton = new JButton("启动");   bButton = new JButton("中断");   p.add(aButton);   p.add(bButton);   aButton.addActionListener(new Muti1());   bButton.addActionListener(new Muti1());   Muti1.f.add(p);   Muti1.f.setVisible(true); } public void run() {   String str; while(true) { try {     str = aField.getText();     str = str.substring(1)+str.substring(0,1);     aField.setText(str); this.sleep(SleepTime); }catch(InterruptedException e){ break; } } } public void setButton() { if(this.isAlive()) {    bButton.setEnabled(true);    aButton.setEnabled(false); } if(this.interrupted()) {    aButton.setEnabled(true);    bButton.setEnabled(false); } } }