xcalc.java

利用开源的源码为一个朋友的V3手机手机写的科学计算器

/*
 * XCalc.java
 * 
 * Created on 2007-10-19, 10:28:31
 * 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package xcalc;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
 * @author Xiaobo Lee
 */
public class XCalc extends MIDlet {
	public static Display	display;
	public static Renderer renderer;
	public static Options options;
	public static History history;
		
	public XCalc() {
		super();	
		display = Display.getDisplay(this);			
		renderer = new Renderer(this);
		options = new Options();
		history = new History();
		options.loadPreferences();		
		history.loadHistory();
	}
	
	public Display getDisplay(){
		return display;
	}

	protected void startApp() throws MIDletStateChangeException {		
		display.setCurrent(renderer);		
	}

	protected void pauseApp() {
	}

	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
	}
}