JScrollBar and Adjustment event

 

import java.awt.Adjustable;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.AdjustmentEvent;
import java.awt.event.AdjustmentListener;

import javax.swing.JFrame;
import javax.swing.JScrollBar;

public class Main {
  JScrollBar scrollBarVertical = new JScrollBar();
  JScrollBar scrollbarHorizontal = new JScrollBar(Adjustable.HORIZONTAL);

  Main() {
    JFrame f = new JFrame();
    f.setLayout(new FlowLayout());
    f.setSize(280, 300);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    scrollBarVertical.setPreferredSize(new Dimension(20, 200));
    scrollbarHorizontal.setPreferredSize(new Dimension(200, 20));

    scrollbarHorizontal.setValue(50);

    scrollBarVertical.addAdjustmentListener(new AdjustmentListener() {
      public void adjustmentValueChanged(AdjustmentEvent ae) {
        if (scrollBarVertical.getValueIsAdjusting())
          return;
        System.out.println("Value of vertical scroll bar: " + ae.getValue());
      }
    });

    scrollbarHorizontal.addAdjustmentListener(new AdjustmentListener() {
      public void adjustmentValueChanged(AdjustmentEvent ae) {
        System.out.println("Value of horizontal scroll bar: " + ae.getValue());
      }
    });

    f.add(scrollBarVertical);
    f.add(scrollbarHorizontal);

    f.setVisible(true);
  }

  public static void main(String args[]) {
    new Main();
  }
}

1.	Accessible Scroll Demo
2.	A quick demonstration of JScrollBar both vertical and horizontal
3.	JScrollPane: Button Corner Sample
4.	JScrollPane Corner
5.	Expandable SplitPane
6.	ScrollBar Pieces
7.	Listening for Scrollbar Value Changes in a JScrollPane Container
8.	Get the default scrollbar policy
9.	Make the scrollbars always appear
10.	Make the scrollbars never appear
11.	JScrollPane to hold scrollable component
12.	Use Adjustment Events in Swing
13.	Always display scrollbar
14.	How to use scrollbar and react to its action

JScrollBar and Adjustment event : ScrollBar « Swing JFC « Java

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