Creating Scrollbars in an Applet Window using Advanced Java Programming

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Scrollbars are components that enable a value to be selected by sliding a box between two arrows. Several components have built-in scrollbar functionality, including text areas and scrolling lists. The Scrollbar class is used for creating scrollbars. A scrollbar can be horizontal or vertical.

1. Scrollbar() Here the maximum and minimum value of scrollbar is 0
2. Scrollbar(int) It creates a scrollbar with minimum and maximum value as 0 but with its orientation either vertical or horizontal.
3. Scrollbar(int, int, int, int) It creates a scrollbar in which ,first argument Specify the orientation , then the width or height of the box which appears in the Scrollbar and then its minimum and then its maximum value.

For ex:-
Scrollbar bar=new scrollbar (Scrollbar. VERTICAL ,10,0,1,100);
add(bar);

Here Scrollbar. VERTICAL Specify the Orientation and 10 Specify the Width and Height of Box of Scrollbar and 0 is the Starting value and 1 is Minimum value and 100 is the Maximum value of Scrollbar.

The following program code show how to create a frame window:
/* =========================================================== File Name : Scroll.java WebSite : http://javaproglang.blogspot.in/ Facebook : https://www.facebook.com/AdvanceJavaProgramming Created By : Bintu Chaudhary =========================================================== */ import java.awt.*; import java.applet.*; /* <APPLET Code="Scroll" Width=500 Height=200> </APPLET> */ public class Scroll extends Applet { Scrollbar bar = new Scrollbar(Scrollbar.VERTICAL, 10, 0, 1, 100); public void init( ) { add(bar); } }
The above code will be stored in the file called Scroll.java, which on compilation will crate a class file called Scroll.class. Now compiple this file using below commands in the DOS mode:

C:\>jdk1.4\bin>javac Scroll.java
C:\>jdk1.4\bin>appletviewer Scroll.java

"Output of Scroll.java"

Download Complete Program   -

Methods of a Scrollbar

Method	Action
getValue()	Used to get the value of Scrollbar
setValue (int)	Used to set the Value of Scrollbar.

AWT Controls

Label	Buttons	Check Boxes	Radio Buttons
Choice Controls	TextFields & Password	TextAreas	Scrolling Lists	Scrollbars