求小程序

请求java动态小程序

滚动的小球或者图形的自动变形（圆变方，变三角），计算器，计时器之类……

可以用 j buider 运行的

万分感谢

[code="java"]我编了个计时器:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Timer extends JFrame implements ActionListener,Runnable
{
private JTextField text_timer;
private JButton button_start,button_pause,button_stop;
private Thread TimerThread;
public int changedata(String str)
{
int x=(str.charAt(0)-48)*10+str.charAt(1)-48;
return x;
}
public void addone()
{
String str1=text_timer.getText(),strh,strm,strs,strl;
int h,m,s,l;
h=changedata(str1.substring(0,2));
m=changedata(str1.substring(3,5));
s=changedata(str1.substring(6,8));
l=changedata(str1.substring(9,11))+1;
if(l==100)
{
l=0;
s=s+1;
}
if(s==60)
{
s=0;
m=m+1;
}
if(m==60)
{
m=0;
h=h+1;
}
if(h<10)
{
strh="0"+h;
}
else
{
strh=""+h;
}
if(m<10)
{
strm="0"+m;
}
else
{
strm=""+m;
}
if(s<10)
{
strs="0"+s;
}
else
{
strs=""+s;
}
if(l<10)
{
strl="0"+l;
}
else
{
strl=""+l;
}
text_timer.setText(strh+":"+strm+":"+strs+":"+strl);
}
public Timer()
{
super("计时器");
this.setSize(200,100);
this.setLocation(300,240);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setLayout(new GridLayout(2,1));
text_timer=new JTextField("00:00:00:00");
button_start=new JButton("start");
button_pause=new JButton("pause");
button_stop=new JButton("stop");
this.add(text_timer);
this.add(button_start);
this.add(button_pause);
this.add(button_stop);
text_timer.addActionListener(this);
button_start.addActionListener(this);
button_pause.addActionListener(this);
button_stop.addActionListener(this);
TimerThread=new Thread(this);
this.setVisible(true);
}
public void run()
{
while(TimerThread.isAlive()&&!TimerThread.isInterrupted())
{
try
{
TimerThread.sleep(10);
addone();
}
catch(InterruptedException e)
{
break;
}
}
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==button_start)
{
button_pause.setEnabled(true);
button_start.setEnabled(false);
button_stop.setEnabled(true);
TimerThread=new Thread(this);
TimerThread.setPriority(10);
TimerThread.start();
}
if(e.getSource()==button_pause)
{
button_pause.setEnabled(false);
button_start.setEnabled(true);
button_stop.setEnabled(true);
TimerThread.interrupt();
}
if(e.getSource()==button_stop)
{
TimerThread.interrupt();
button_pause.setEnabled(false);
button_start.setEnabled(true);
button_stop.setEnabled(false);
text_timer.setText("00:00:00:00");
}
}
public static void main(String arg[])
{
new Timer();
}
}
[/code]

果然如此，^_^

白天上班，晚上还得忙。。。哎

滚动的小球，这个网上很多啊，随便百度一个就有了，
JBUILDER只是一个开发IDE吧，只要是JAVA的多能运行 :o

贴个滚动的小球代码

[code="java"]
//Checkers.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

//Checkers类
public class Checkers extends JFrame implements ActionListener {
//变量定义
CheckersPanel checkers = new CheckersPanel();
JButton startButton = new JButton("start");
JButton stopButton = new JButton("stop");
//构造函数
public Checkers(){
super("Checkers");
setSize(210,170);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel pane = new JPanel();
BorderLayout border = new BorderLayout();
pane.setLayout(border);
pane.add(checkers,"Center");

JPanel buttonPanel = new JPanel();
startButton.addActionListener(this);
buttonPanel.add(startButton);
stopButton.addActionListener(this);
stopButton.setEnabled(false);
buttonPanel.add(stopButton);

pane.add(buttonPanel,"South");
setContentPane(pane);
show();
}
//响应用户动作
public void actionPerformed(ActionEvent evt){
if(evt.getSource() == startButton){
checkers.playAnimation();
startButton.setEnabled(false);
stopButton.setEnabled(true);
}else{
checkers.stopAnimation();
startButton.setEnabled(true);
stopButton.setEnabled(false);
}
}
//主函数
public static void main(String[] arguments){
Checkers ck = new Checkers();
}
}

//CheckersPanel类
class CheckersPanel extends JPanel implements Runnable{
//变量定义
private Thread runner;
int xPos = 5;
int xMove = 4;
//播放动画
void playAnimation(){
if (runner ==null);{
runner = new Thread(this);
runner.start();
}
}
//停止动画
void stopAnimation(){
if (runner !=null);{
runner = null;
}
}
//运行
public void run(){
Thread thisThread = Thread.currentThread();
while(runner ==thisThread){
xPos += xMove;
if ((xPos > 105)|(xPos < 5))
xMove *= -1;
repaint();
try{
Thread.sleep(100);
}catch(InterruptedException e){}
}
}
//画图形
public void paintComponent(Graphics comp){
Graphics2D comp2D = (Graphics2D)comp;
comp2D.setColor(Color.blue);
comp2D.fillRect(0,0,100,100);
comp2D.setColor(Color.white);
comp2D.fillRect(100,0,100,100);
comp2D.setColor(Color.black);
comp2D.fillOval(xPos,5,90,90);
}
}
[/code]