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POMultithreading in Java
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copied!<p>Hey all<br /> I have a problem with multithreading in java. This is my scenario. I have a class,which name is LocalTime. This class should catch the current time of system, and via a method,which name is getCurrentTime, return this value to a Form. This is the code of this class <br /></p> <pre><code>public class LocalTime implements Runnable { private String currentTime=null; Thread t; private long time; private long h; private long m; private long s; public LocalTime() { t=new Thread(this,"current Time"); t.start(); } public synchronized void run() { try { for(;;){ Thread.sleep(1000); time = System.currentTimeMillis()/1000; h = (time / 3600) % 24; m = (time / 60) % 60; s = time % 60; this.currentTime=h+":"+m+":"+s; } } catch (InterruptedException ex) { Logger.getLogger(LocalTime.class.getName()).log(Level.SEVERE, null, ex); } } public String getCurrentTime(){ return this.currentTime; } } </code></pre> <p>and this is the code of main form:</p> <pre><code>public MainForm1() { initComponents(); LocalTime l=new LocalTime(); this.jLabel1.setText(l.getCurrentTime());//show the current time //The rest of code } </code></pre> <p><br /> now my major problem is the <em>jLabel1</em> text which shows current system time does not update each 1 second. If I insert <em>for(;;)</em> before the line of <em>jLabel1.setText(l.getCurrentTime())</em> the rest of code won't be reacheable. what should I to correct this error? please suggest me solution with these assumptions. I know that I can run a thread in <em>MainForm1</em>, too but I want some solution to this problem.</p>

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