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POJava Sleep not working in loop
 

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  1. POJava Sleep not working in loop
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    <p>What I want to do in my java program is, that when I press the button it displays text in <code>textfield</code> in intervals of time. i.e I press the button then a <code>jFrame</code> pops up and there is a label which shows text like: 1st second:"1st" then a time lag of say 1 sec then 2nd thing: "2nd"</p> <p>I am a newbie and I tried to Google this problem but I couldn't find a solution even after 3-4 hours I tried a lot of things: sleep, try n catch...</p> <p>Please write the answer very simplified.</p> <p>Here is my code: In the following code, when the button is pressed, the jFrame comes but has a white screen in it and when the sum ends, its screen turns grey and it shows the answer....</p> <pre><code> private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) { See.setVisible(true);//See is the JFrame t007.setVisible(true);//Label in See l2.setVisible(true);//TextField in See int ran, g, d, col, ran2; double y = 1000 * (Double.parseDouble(t2.getText())); int x = (int) y; d = 0; double c = Math.pow(10, Integer.parseInt(t1.getText())); col = Integer.parseInt(t3.getText()); for (g = 0; g &lt; col;) { ran = (int) (Math.random() * (c)); // Random Number Creation Starts if (ran &gt; (c / 10)) { g = g + 1; ran2 = ((int) (Math.random() * 10)) % 2; if (ran2 == 1) { ran = ran * (-1); } d = d + ran; if (d &lt; 0) { ran = ran * (-1); d = d + (2 * ran); } l2.setVisible(true); t007.setText("" + ran); System.out.println("" + ran); jButton6.doClick(); //Pausing (Sleep) try { Thread.sleep(x); } catch (InterruptedException ex) { Thread.currentThread().interrupt(); } } } l2.setText("" + d); } </code></pre>
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    1. USDaksh Shah
    1. USDaksh Shah
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    1. COUse a `SwingWorker` to provide background processing and synchronisation to back to the event queue. See [Concurrency in Swing](http://docs.oracle.com/javase/tutorial/uiswing/concurrency/) for more details
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      1. POJava Sleep not working in loop
      1. USMadProgrammer
    2. CODon't block the EDT (Event Dispatch Thread) - the GUI will 'freeze' when that happens. Instead of calling `Thread.sleep(n)` implement a Swing `Timer` for repeating tasks or a `SwingWorker` for long running tasks. See [Concurrency in Swing](http://docs.oracle.com/javase/tutorial/uiswing/concurrency/) for more details.
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      1. POJava Sleep not working in loop
      1. USAndrew Thompson
    3. COHEY GUYS, i cant understand u ppl, can u please talk simple and write the CODE and then tell me what and how. PLEASE
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      1. POJava Sleep not working in loop
      1. USDaksh Shah
 

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