非常急!!!! 因为他不是application,而是一个applet你需要把它编译后放在一个html文件中 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 但是为什么以下这个相似的程序(也是applet)就可以运行呢?package counter3;import java.awt.*;import java.awt.event.*;import java.applet.*;public class Counter3extends Applet implements Runnable {private int count = 0;private boolean runFlag = true;private Thread selfThread = null;private ButtononOff = new Button("Toggle"),start = new Button("Start");private TextField t = new TextField(10);public void init() {add(t);start.addActionListener(new StartL());add(start);onOff.addActionListener(new OnOffL());add(onOff);}public void run() {while (true) {try {selfThread.sleep(100);} catch (InterruptedException e){}if(runFlag)t.setText(Integer.toString(count++));}}class StartL implements ActionListener {public void actionPerformed(ActionEvent e) {if(selfThread == null) {selfThread = new Thread(Counter3.this);selfThread.start();}}}class OnOffL implements ActionListener {public void actionPerformed(ActionEvent e) {runFlag = !runFlag;}}public static void main(String[] args) {Counter3 applet = new Counter3();Frame aFrame = new Frame("Counter3");aFrame.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {System.exit(0);}});aFrame.add(applet, BorderLayout.CENTER);aFrame.setSize(300,200);applet.init();applet.start();aFrame.setVisible(true);}} Swing规定你要将所有的组件加到content pane,调用add()之前先调用getContentPane()public void init() Container cp=getContentPane(); cp.setLayout(new FlowLayout()); cp.add(t); start.addActionListener(new StartL()); cp.add(start); onOff.addActionListener(new OnOffL()); cp.add(onOff); btw:这个好像是thinking in java里面多线程的例子:) jcombobox下拉菜单级联监听问题 关于java输出的问题 编程时遇到个小问题,请大侠们指教下 请教泛型题~ !!!能用java编出截取在线播放的文件数据吗??!! 关于生成可执行文件的问题,请进来讨论(200分) 关于java.exe的问题 数据库连接池问题 高分相求,来者有分,谁知道有关Applet中包的下载问题? string str = new String("abc"); s存的是String对象的地址还是abc的地址? 急!!!JavaApplet的一个小问题,不过很急,请高手进来取分! 如何在WinXP中安装Visual J++6.0?
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class Counter3
extends Applet implements Runnable {
private int count = 0;
private boolean runFlag = true;
private Thread selfThread = null;
private Button
onOff = new Button("Toggle"),
start = new Button("Start");
private TextField t = new TextField(10);
public void init() {
add(t);
start.addActionListener(new StartL());
add(start);
onOff.addActionListener(new OnOffL());
add(onOff);
}
public void run() {
while (true) {
try {
selfThread.sleep(100);
} catch (InterruptedException e){}
if(runFlag)
t.setText(Integer.toString(count++));
}
}
class StartL implements ActionListener {
public void actionPerformed(ActionEvent e) {
if(selfThread == null) {
selfThread = new Thread(Counter3.this);
selfThread.start();
}
}
}
class OnOffL implements ActionListener {
public void actionPerformed(ActionEvent e) {
runFlag = !runFlag;
}
}
public static void main(String[] args) {
Counter3 applet = new Counter3();
Frame aFrame = new Frame("Counter3");
aFrame.addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
aFrame.add(applet, BorderLayout.CENTER);
aFrame.setSize(300,200);
applet.init();
applet.start();
aFrame.setVisible(true);
}
}
public void init()
Container cp=getContentPane();
cp.setLayout(new FlowLayout());
cp.add(t);
start.addActionListener(new StartL());
cp.add(start);
onOff.addActionListener(new OnOffL());
cp.add(onOff);