test_midlet.java

用Eclipse实现的J2me程序,实现了页面的跳转等

/*
 * Created on Aug 8, 2005
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.lang.Class;
import java.io.InputStreamReader;
/**
 * @author blrc
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class Test_Midlet extends MIDlet{
	final int MAX_LENGTH = 2046;
	byte[] buf = new byte[MAX_LENGTH];
	protected Display display;
	Form form;
	InputStream is;
	String str;
	static Class obj;
	
	public Test_Midlet()
	{
		form = new Form("Test_CN");
		display = Display.getDisplay(this);
		
	}
	
	protected void startApp() throws MIDletStateChangeException 
	{
		InputStream is = getClass().getResourceAsStream("/help/settings.txt");
        InputStreamReader dis = new InputStreamReader(is);
        StringBuffer sb=new StringBuffer();
        try
		{
           int ch = 0;
           while((ch= dis.read()) != -1) 
           {
            if(ch != 0)
            {
                sb.append((char)ch);              
            }
           }
          //dis.close();
           is.close();
		}
        catch (Exception e)
		{
        	e.printStackTrace();
		}
        str = new String(sb);
        sb.delete(0,sb.length());        
        form.append(str);
	    form.append("The string length:" + str.length());
		
		/*
		try
		{
		//	obj = Class.forName("Test_Midlet");
			is = getClass().getResourceAsStream("/settings.txt");
		    if(is != null){
		    	System.out.println("1");
		    int count = is.read(buf, 0, is.available());
		    str = new String(buf,0,count);
		    form.append(str);
		    form.append("The string length:" + str.length());
		 	}	
		    else System.out.println("can not find file!");
		 	

		 }
		 catch (Exception e)
		 {
		 	e.printStackTrace();
		}
		*/
		//str = "\u00d0\u00a4\u00d4\u00c6\u00c5\u00f4";
		//str = "\u00d0\u00a4";
		//try {
		//	String s = new String(str.getBytes("iso-8859-1"),"gb2312");
		//	System.out.println(s};
		//} catch (UnsupportedEncodingException e) {
		///	// TODO Auto-generated catch block
		//	e.printStackTrace();
		//}

		//form.append(str);

		display.setCurrent(form);


	}	
	
	protected void pauseApp() {
		// TODO Auto-generated method stub

	}

	/* (non-Javadoc)
	 * @see javax.microedition.midlet.MIDlet#destroyApp(boolean)
	 */
	protected void destroyApp(boolean arg0){
		// TODO Auto-generated method stub

	}

}