多线程的世界时钟，显示巴黎，罗马，上海时间, AWT界代码,Java代码库,德仔网

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【Java】多线程的世界时钟，显示巴黎，罗马，上海时间, AWT界
作者: / 发布于2011/1/14/ 912
<div><span style="color: #000000">
</span><span style="color: #008000">/*</span><span style="color: #008000">心得：TimeZone tz1=TimeZone.getTimeZone("Europe/Paris");
* Calendar cld=Calendar.getInstance(tz);
* clk.setText(cld.get(Calendar.HOUR_OF_DAY)+":"+cld.get(Calendar.MINUTE)+":"+cld.get(Calendar.SECOND));
</span><span style="color: #008000">*/</span><span style="color: #000000">


</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.awt.</span><span style="color: #000000">*</span><span style="color: #000000">;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.awt.event.</span><span style="color: #000000">*</span><span style="color: #000000">;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.util.</span><span style="color: #000000">*</span><span style="color: #000000">;

</span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">class</span><span style="color: #000000"> WorldClock{
 Frame f</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Frame(</span><span style="color: #000000">"</span><span style="color: #000000">WorldClock</span><span style="color: #000000">"</span><span style="color: #000000">);
 Label l1</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Label();
 Label l2</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Label();
 Label l3</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Label();
 Label cl1</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Label();
 Label cl2</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Label();
 Label cl3</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> Label();
 
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> WorldClock(){
 
 l1.setFont(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Font(</span><span style="color: #000000">"</span><span style="color: #000000">Arial</span><span style="color: #000000">"</span><span style="color: #000000">,Font.BOLD,</span><span style="color: #000000">30</span><span style="color: #000000">));
 l2.setFont(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Font(</span><span style="color: #000000">"</span><span style="color: #000000">Arial</span><span style="color: #000000">"</span><span style="color: #000000">,Font.BOLD,</span><span style="color: #000000">30</span><span style="color: #000000">));
 l3.setFont(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Font(</span><span style="color: #000000">"</span><span style="color: #000000">Arial</span><span style="color: #000000">"</span><span style="color: #000000">,Font.BOLD,</span><span style="color: #000000">30</span><span style="color: #000000">));
 cl1.setFont(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Font(</span><span style="color: #000000">"</span><span style="color: #000000">Arial</span><span style="color: #000000">"</span><span style="color: #000000">,Font.BOLD,</span><span style="color: #000000">30</span><span style="color: #000000">));
 cl2.setFont(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Font(</span><span style="color: #000000">"</span><span style="color: #000000">Arial</span><span style="color: #000000">"</span><span style="color: #000000">,Font.BOLD,</span><span style="color: #000000">30</span><span style="color: #000000">));
 cl3.setFont(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Font(</span><span style="color: #000000">"</span><span style="color: #000000">Arial</span><span style="color: #000000">"</span><span style="color: #000000">,Font.BOLD,</span><span style="color: #000000">30</span><span style="color: #000000">));
 cl1.setForeground(Color.red);
 cl2.setForeground(Color.red); 
 cl3.setForeground(Color.red);
 
 f.setLayout(</span><span style="color: #0000ff">new</span><span style="color: #000000"> GridLayout(</span><span style="color: #000000">2</span><span style="color: #000000">,</span><span style="color: #000000">3</span><span style="color: #000000">));
 f.add(l1);
 f.add(l2);
 f.add(l3);
 f.add(cl1);
 f.add(cl2);
 f.add(cl3);
 
 TimeZone tz1</span><span style="color: #000000">=</span><span style="color: #000000">TimeZone.getTimeZone(</span><span style="color: #000000">"</span><span style="color: #000000">Europe/Paris</span><span style="color: #000000">"</span><span style="color: #000000">);
 clock c1</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> clock(l1,cl1,tz1);
 </span><span style="color: #0000ff">new</span><span style="color: #000000"> Thread(c1).start();
 
 TimeZone tz2</span><span style="color: #000000">=</span><span style="color: #000000">TimeZone.getTimeZone(</span><span style="color: #000000">"</span><span style="color: #000000">Asia/Shanghai</span><span style="color: #000000">"</span><span style="color: #000000">);
 clock c2</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> clock(l2,cl2,tz2);
 </span><span style="color: #0000ff">new</span><span style="color: #000000"> Thread(c2).start();
 
 TimeZone tz3</span><span style="color: #000000">=</span><span style="color: #000000">TimeZone.getTimeZone(</span><span style="color: #000000">"</span><span style="color: #000000">Europe/Rome</span><span style="color: #000000">"</span><span style="color: #000000">);
 clock c3</span><span style="color: #000000">=</span><span style="color: #0000ff">new</span><span style="color: #000000"> clock(l3,cl3,tz3);
 </span><span style="color: #0000ff">new</span><span style="color: #000000"> Thread(c3).start();
 
 f.setLocation(</span><span style="color: #000000">200</span><span style="color: #000000">,</span><span style="color: #000000">200</span><span style="color: #000000">);
 f.setVisible(</span><span style="color: #0000ff">true</span><span style="color: #000000">);
 f.pack();
 
 
 }
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> main(String[] args){
 </span><span style="color: #0000ff">new</span><span style="color: #000000"> WorldClock();
 String[] s</span><span style="color: #000000">=</span><span style="color: #000000">TimeZone.getAvailableIDs();
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> i</span><span style="color: #000000">=</span><span style="color: #000000">0</span><span style="color: #000000">;
 </span><span style="color: #0000ff">while</span><span style="color: #000000">(</span><span style="color: #000000">++</span><span style="color: #000000">i</span><span style="color: #000000"><</span><span style="color: #000000">s.length){
 System.out.println (s[i]);
 }
 }
}

</span><span style="color: #0000ff">class</span><span style="color: #000000"> clock </span><span style="color: #0000ff">implements</span><span style="color: #000000"> Runnable{
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> Label l;
 </span><span style="color: #0000ff">private</span><span style="color: #000000"> Label clk;
 TimeZone tz;
 
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> clock(Label l,Label clk,TimeZone tz){
 </span><span style="color: #0000ff">this</span><span style="color: #000000">.l</span><span style="color: #000000">=</span><span style="color: #000000">l;
 </span><span style="color: #0000ff">this</span><span style="color: #000000">.clk</span><span style="color: #000000">=</span><span style="color: #000000">clk;
 </span><span style="color: #0000ff">this</span><span style="color: #000000">.tz</span><span style="color: #000000">=</span><span style="color: #000000">tz;
 }
 
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> run(){
 l.setText(tz.getID());
 </span><span style="color: #0000ff">while</span><span style="color: #000000">(</span><span style="color: #0000ff">true</span><span style="color: #000000">){
 Calendar cld</span><span style="color: #000000">=</span><span style="color: #000000">Calendar.getInstance(tz);
 clk.setText(cld.get(Calendar.HOUR_OF_DAY)</span><span style="color: #000000">+</span><span style="color: #000000">"</span><span style="color: #000000">:</span><span style="color: #000000">"</span><span style="color: #000000">+</span><span style="color: #000000">cld.get(Calendar.MINUTE)</span><span style="color: #000000">+</span><span style="color: #000000">"</span><span style="color: #000000">:</span><span style="color: #000000">"</span><span style="color: #000000">+</span><span style="color: #000000">cld.get(Calendar.SECOND));
 </span><span style="color: #0000ff">try</span><span style="color: #000000">{
 Thread.sleep(</span><span style="color: #000000">1000</span><span style="color: #000000">);
 }</span><span style="color: #0000ff">catch</span><span style="color: #000000">(Exception e){
 e.printStackTrace();
 }
 
 }
 }
}</span>
</div>
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