Creating Choice Controls in an Applet Window using Advanced Java Programming

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These are same as a Simple List Which contains a Series of Choices and one can select an item from that list . But theses Choice Lists provides selection of only one item from a list and to add various optisons we have to use the add Method of Lists like this.

Choice ch=new Choice(); // Create Object of Choice Class
Ch.add("Red");// add : Name of Method to Add Options in List.
Ch.add("Green");
Ch.add("Yellow");
add(Ch);

The first statement creates an object of the Choice class.

The second and third statement adds two items to the Choice list.

The following example displays a dropdown Choice list in applet ChoiceTest.
/* =========================================================== File Name : ChoiceTest.java WebSite : http://javaproglang.blogspot.in/ Facebook : https://www.facebook.com/AdvanceJavaProgramming Created By : Bintu Chaudhary =========================================================== */ import java.awt.*; import java.applet.*; /* <APPLET Code="ChoiceTest" Width=500 Height=200> </APPLET> */ public class ChoiceTest extends Applet { public void init( ) { Choice ch = new Choice(); ch.add("apples"); ch.add("oranges"); ch.add("strawberies"); ch.add("bananas"); add(ch ); } }
The above code will be stored in the file called ChoiceTest.java, which on compilation will crate a class file called ChoiceTest.class. Now compiple this file using below commands in the DOS mode:

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

"Output of ChoiceTest.java"

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Methods of the Chioce Object:

Methods	Action
GetItem(int)	Returns the string item at the given position(items inside a choice begins at 0,as in arrays).
GetSelectedIndex()	Returns the index position of the item that is selected
GetSelectedItem()	Returns the currently selected item as a string
Select(int)	Selects the item at the given position.
Select(String)	Selects the item with the given string.

AWT Controls

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