Wireless Java

Name

javax.microedition.lcdui.Choice

Synopsis

This interface defines an API for user interface components, such as List and ChoiceGroup, implementing selection from a predefined number of choices. Each element of a choice is composed of a text string and an optional image. If you do not want the element to have an image, pass in null.

There are three types of choices:

EXCLUSIVE

Presents a series of elements and interacts with the user. When the user selects an element, it is shown to be selected using a distinct visual representation. Exactly one element must be selected at any given time.

IMPLICIT

Serves as an EXCLUSIVE choice where the focused element is implicitly selected when a command is initiated.

MULTIPLE

Presents a series of elements and allows the user to select multiple elements.

public interfaceChoice {
   // public class fields
   public static final int EXCLUSIVE = 1;
   public static final int IMPLICIT = 2;
   public static final int MULTIPLE = 3;
   // public instance methods
   public int append(String stringPart, Image imagePart);
   public void  delete(int elementNum);
   public Image getImage(int elementNum);
   public int getSelectedFlags(boolean[] selectedArray);
   public int getSelectedIndex(  );
   public String getString(int elementNum);
   public void insert(int elementNum, String stringPart, Image imagePart);
   public boolean isSelected(int elementNum);
   public void set(int elementNum, String stringPart, Image imagePart);
   public void setSelectedFlags(boolean[] selectedArray);
   public void setSelectedIndex ...