AdjustmentEvent

Example of AdjustmentEvent

import java.awt.*;
import java.awt.event.*;

class AdjustmentEventEx extends Frame implements AdjustmentListener
{
int rval=0,gval=0,bval=0;
Scrollbar sr,sb,sg;
Panel ps;
AdjustmentEventEx()
{
	ps=new Panel();
	Label l1=new Label("Red");
	Label l2=new Label("Green");
	Label l3=new Label("Blue");
	sr=new Scrollbar(Scrollbar.HORIZONTAL,0,5,0,255);
	sg=new Scrollbar(Scrollbar.HORIZONTAL,0,5,0,255);
	sb=new Scrollbar(Scrollbar.HORIZONTAL,0,5,0,255);
	ps.add(l1);
	ps.add(sr);
	ps.add(l2);
	ps.add(sg);
	ps.add(l3);
	ps.add(sb);
	add("South",ps);
	sr.addAdjustmentListener(this);
	sg.addAdjustmentListener(this);
        sb.addAdjustmentListener(this);
	setSize(400,400);
	setVisible(true);
	}
	public void adjustmentValueChanged( AdjustmentEvent e)
	{
		if(e.getSource().equals(sr))
		{
			rval=sr.getValue();
			setBackground(new Color(rval,bval,gval));
		}
		if(e.getSource().equals(sg))
		{
			gval=sg.getValue();
			setBackground(new Color(rval,gval,bval));
		}
		if(e.getSource().equals(sb))
		{
			bval=sb.getValue();
			setBackground(new Color(rval,gval,bval));
		}
	}

	public static void main(String[] args) 
	{
		AdjustmentEventEx ae=new AdjustmentEventEx();
	}
}