J2ME：rms的两种遍历方法

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import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import javax.microedition.rms.*;

public class searchrecord extends MIDlet {

RecordStore rs=null;

public searchrecord() {
  // TODO Auto-generated constructor stub
}

protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
// TODO Auto-generated method stub

}

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

}

protected void startApp() throws MIDletStateChangeException {
  // TODO Auto-generated method stub
       try {
  rs=RecordStore.openRecordStore("rs", true);
  rs.addRecord("龙".getBytes(), 0, 2);
  rs.addRecord("虎".getBytes(), 0, 2);
  rs.addRecord("狍".getBytes(), 0, 2);
  rs.addRecord("蛇".getBytes(), 0, 2);
  rs.addRecord("老鼠".getBytes(), 0, 4);
  rs.deleteRecord(4);

  //方法一，枚举遍历
  RecordEnumeration re= rs.enumerateRecords(null, null, false); //能发现失效的ID并自动跳过
  while(re.hasNextElement())
  {
   System.out.println(new String(re.nextRecord()));
  }

  //方法二，getNextRecordID,遍历ID
  for(int i=1;i<rs.getNextRecordID();i++)
  {
   try{
   System.out.println(new String(rs.getRecord(i)));
   }catch(Exception e)
   {}   //忽略异常
  }


} catch (RecordStoreFullException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
} catch (RecordStoreNotFoundException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
} catch (RecordStoreException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
}
}

}