A quick demonstration of JScrollBar both vertical and horizontal : ScrollBar « Swing JFC « Java

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Java » Swing JFC » ScrollBar 




A quick demonstration of JScrollBar both vertical and horizontal
A quick demonstration of JScrollBar both vertical and horizontal
  
/*
Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly 
*/
// SwingScrollBarExample.java
// A quick demonstration of JScrollBar (both vertical and horizontal).
//

import java.awt.BorderLayout;
import java.awt.event.AdjustmentEvent;
import java.awt.event.AdjustmentListener;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollBar;

public class SwingScrollBarExample extends JPanel {

  JLabel label;

  public SwingScrollBarExample() {
    super(true);
    label = new JLabel();
    setLayout(new BorderLayout());

    JScrollBar hbar = new JScrollBar(JScrollBar.HORIZONTAL, 30200300);
    JScrollBar vbar = new JScrollBar(JScrollBar.VERTICAL, 30400300);

    hbar.setUnitIncrement(2);
    hbar.setBlockIncrement(1);

    hbar.addAdjustmentListener(new MyAdjustmentListener());
    vbar.addAdjustmentListener(new MyAdjustmentListener());

    add(hbar, BorderLayout.SOUTH);
    add(vbar, BorderLayout.EAST);
    add(label, BorderLayout.CENTER);
  }

  class MyAdjustmentListener implements AdjustmentListener {
    public void adjustmentValueChanged(AdjustmentEvent e) {
      label.setText("    New Value is " + e.getValue() "      ");
      repaint();
    }
  }

  public static void main(String s[]) {
    JFrame frame = new JFrame("Scroll Bar Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(new SwingScrollBarExample());
    frame.setSize(200200);
    frame.setVisible(true);
  }
}

           
         
    
  














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