sharemidlet.java

<j2me 开发精解> 詹建光著 里所有的源码。对J2me的开发相当有帮助

package com.j2medev.chapter4;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;

public class ShareMIDlet extends MIDlet {
    private RecordStore rs = null;
    
    public void startApp() {
        try{
            //创建可共享的RecordStore，并向其中写入一条记录hello world。
            rs = RecordStore.openRecordStore("test",true,RecordStore.AUTHMODE_ANY, false);
            String s = "hello world";
            byte[] data = s.getBytes();
            rs.addRecord(data, 0,data.length);
        }catch(RecordStoreException ex){
            ex.printStackTrace();
        }
        Form form = new Form("共享");
        form.append("向MIDlet套间1中写入hello word");
        Display.getDisplay(this).setCurrent(form);
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
        try{
            rs.closeRecordStore();
        }catch(RecordStoreException ex){
            ex.printStackTrace();
        }
    }
}