SCROLLBAR PROGRAM in java

                                                        SCROLLBAR PROGRAM

                                                                       PROBLEM -1

import java.applet.*;

import java.awt.*;

import java.awt.event.*;

/*

            <applet code="ScrollBar1" height=200 width=200>

            </applet>

*/

public class ScrollBar1 extends Applet implements AdjustmentListener

{

            TextField tf;

            public void init()

            {

                        Scrollbar sb=new Scrollbar(Scrollbar.HORIZONTAL,0,10,0,200); 

                        add(sb);

                        sb.addAdjustmentListener(this);

                        tf=new TextField(10);

                        tf.setEditable(false);

                        add(tf);

            }

            public void adjustmentValueChanged(AdjustmentEvent ae)

            {

                                    Scrollbar sb=(Scrollbar)ae.getAdjustable();

                                    int val=sb.getValue();

                                    tf.setText(val+"")

}

}

                       

PROBLEM-2

           

import java.applet.*;

import java.awt.*;

import java.awt.event.*;

/*

            <applet code="ScrollBar2" height=200 width=200>

            </applet>

*/

public class ScrollBar2 extends Applet implements AdjustmentListener

{

            Scrollbar sb1,sb2,sb3;

            Canvas c1,c2,c3,c4;

            public void init()

            {

                        Label l1=new Label("Red  :");

                        add(l1);

                        c1=new Canvas();

                        c1.setSize(50,50);

                        add(c1);

                        Label l2=new Label("Green  :");

                        add(l2);

                        c2=new Canvas();

                        c2.setSize(50,50);

                        add(c2);

                        Label l3=new Label("Red  :");

                        add(l3);

                        c3=new Canvas();

                        c3.setSize(50,50);

                        add(c3);

                        Label l4=new Label("Red                    :");

                        add(l4);

                        sb1=new Scrollbar(Scrollbar.HORIZONTAL,0,0,0,255);

                        add(sb1);

                        sb1.addAdjustmentListener(this);

                        Label l5=new Label("Green                    :");

                        add(l5);

                        sb2=new Scrollbar(Scrollbar.HORIZONTAL,0,0,0,255);

                        add(sb2);

                        sb2.addAdjustmentListener(this);

                        Label l6=new Label("Blue                    :");

                        add(l6);

                        sb3=new Scrollbar(Scrollbar.HORIZONTAL,0,0,0,255);

                        add(sb3);

                        sb3.addAdjustmentListener(this);

                        Label l7=new Label("Result  :");

                        add(l7);

                        c4=new Canvas();

                        c4.setSize(50,50);

                        add(c4);

            }

            public void adjustmentValueChanged(AdjustmentEvent ae)

            {

                                    int rvalue=sb1.getValue();

                                    int gvalue=sb2.getValue();

                                    int bvalue=sb3.getValue();

                                    Color cred=new Color(rvalue,0,0);

                                    Color cgreen=new Color(0,gvalue,0);

                                    Color cblue=new Color(0,0,bvalue);

                                    Color call=new Color(rvalue,gvalue,bvalue);

                                    c1.setBackground(cred);

                                    c2.setBackground(cgreen);

                                    c3.setBackground(cblue);

                                    c4.setBackground(call);

            }

}

}