How to create a horizontal scrollbar which will scrolls automatically after some time interval

Question

Hi I want horizontal scrollbar which will scroll from left to right automatically after each 1 second.

Thanks Sunil Kumar Sahoo

Answer 1

How about activating a timer which will set the value of the scroll bar to the value needed?

Answer 2

This code sample will provide you with what you need. It creates a scroll pane and scroll the horizontal scrollbar. It also loops from the beginning when it's done.

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.Timer;

public class Test {

    static String ss = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam lectus ligula, ultricies at varius ut, condimentum eget dui. Cras sapien justo, fermentum vulputate commodo vel, aliquam vitae neque. Mauris cursus bibendum accumsan. Etiam euismod dapibus pellentesque. Phasellus et velit nunc, eget dignissim odio. Duis et nulla eget mauris laoreet venenatis eget a purus. Phasellus congue massa in nulla pellentesque mollis. Proin id lorem ut odio fringilla laoreet et vitae nunc. Nunc non arcu justo, pellentesque posuere nulla. Ut eget sollicitudin libero. Ut at luctus arcu.";
    static int percent = 0;

    public static void main(String[] args) {
     JFrame f = new JFrame();
     JTextArea t = new JTextArea(10,50);
     t.setText(ss);
     final JScrollPane s = new JScrollPane(t);
     f.getContentPane().add(s);
     f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     f.pack();
     f.setVisible(true);
     Timer time = new Timer(100, new ActionListener() {

      @Override
      public void actionPerformed(ActionEvent e) {
       percent++;
       if (percent>100)
        percent = 0;
       JScrollBar sb = s.getHorizontalScrollBar();
       sb.setValue((int)(sb.getMaximum()*(percent/100.0)));
      }
     });
     time.start();
    }

}