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  1. #1
    hoglu is offline Member
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    Dec 2008
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    Default JTextArea Animation

    Hi all. This is my first post, hope to find good time here :)

    It looks simple problem, but took me a few hours and still i didn't get solution.
    I want to add string to JTextArea like animation. For example, i tried adding numbers like, while Frame is running, it appends automatically numbers. When it adds number then wait mseconds then refresh and adding another number.

    It is basic structure code, i tried to use. I also tried Timer and ActionListiner but i didn't do that. This program supposed to generating numbers to TextArea like animation, and waiting per number. Could you help me with this code? Thaks alot :confused:

    Java Code:
    import java.awt.*;
    import javax.swing.*;
    import java.awt.event.*;
      public class TextAreaAnimation extends JFrame {
        public TextAreaAnimation() {
            super ("Text Area Animation");
            setLayout(new FlowLayout());
            JTextArea textArea=new JTextArea(10, 10);
            try {
                for (Integer i = 0; i <100; i++) {
            } catch (Exception e) {

  2. #2
    DarrylBurke's Avatar
    DarrylBurke is offline Forum Police
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    Sep 2008
    Madgaon, Goa, India
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    Never call sleep() on the EDT (unless the purpose is to freeze the GUI).

    I think you'll find all the guidance you need here:
    Lesson: Concurrency in Swing (The Java™ Tutorials > Creating a GUI with JFC/Swing)


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