Question

I have a Jpanel where i need to display a text taken from a file.
But i have to display the text word by word (one word per second). How can i do it?
I tried to override the paintComponent method but it can’t display text progressively..

Answer 1

You are looking for Timer (the one in the swing package). Assuming you have the word-splitting part ready, the following pseudo-code snippet is an example of how to append them successively to a JTextArea:

 ActionListener l = new ActionListener() {
     @Override
     public void actionPerformed(...) {
         textArea.append(words.remove(0));  
     }
 };
 Timer timer = new Timer(1000, l);
 timer.start();     

If you really want to draw the String manually on a custom panel, let it have an append method and call that in your actionListener, something like

 class MyPanel .... 
    String text;
    public void append(String word) {
        text += word;
        repaint();
    }
    @Override
    protected void paintComponent(...) {
        super.paintComponent(..);
             // draw the string
    }
 }