?? listtest3.java
字號(hào):
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class ListTest3 extends MIDlet implements CommandListener{
private List list;
private Command exitCommand = new Command("Exit", Command.BACK, 1);
private String[] options={"Option A","Option B","Option C"};
private Display display;
public ListTest3() {
//create an implicit list
list= new List("Implicit-choice list",List.IMPLICIT,
options, null);
//Add commands
list.addCommand(exitCommand);
list.setCommandListener(this);
display=Display.getDisplay(this);
}
public void startApp() throws MIDletStateChangeException {
display.setCurrent(list);
}
/**
* Pause the MIDlet
*/
public void pauseApp() {
}
/**
* Called by the framework before the application is unloaded
*/
public void destroyApp(boolean unconditional) {
//clear everything
list=null;
exitCommand = null;
display=null;
}
public void commandAction(Command c, Displayable d) {
if(d==list && c==List.SELECT_COMMAND) {
System.out.println(options[list.getSelectedIndex()]+" is selected");
}
else if(c==exitCommand) {
destroyApp(true);
notifyDestroyed();
}
}
}
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