deleterecordstoremidlet.java

j2me的程序

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
// A first MIDlet with simple text and a few commands.
public class deleteRecordStoreMIDlet extends MIDlet
implements CommandListener {
  private Command exitCommand;
  private Command confirmCommand;
    //The display for this MIDlet
  private Display display;

  public deleteRecordStoreMIDlet() {
    display = Display.getDisplay(this);
    exitCommand = new Command("离开", Command.EXIT, 1);
    confirmCommand = new Command("删除",Command.OK,1);
   }

  // Start the MIDlet by creating the TextBox and
  // associating the exit command and listener.
  public void startApp() {
	TextBox aTextBox = new TextBox("主画面","删除RecordStore",256,TextField.ANY);

    aTextBox.addCommand(exitCommand);
    aTextBox.addCommand(confirmCommand);
    aTextBox.setCommandListener(this);
    display.setCurrent(aTextBox);
  }

  // Pause is a no-op because there are no background
  // activities or record stores to be closed.
  public void pauseApp() { }

  // Destroy must cleanup everything not handled
  // by the garbage collector.
  // In this case there is nothing to cleanup.
  public void destroyApp(boolean unconditional) { }

  public void commandAction(Command c, Displayable s) {
	 if(c.getCommandType() == Command.EXIT){
         destroyApp(false);
         notifyDestroyed();
	 }
	 else{
		 try{
			 RecordStore.deleteRecordStore("aRS");
		 }
		 catch(Exception e){
		 }
		System.out.println("delete ok");
	}
  }
}