top10recordstore.java~2~

j2me源代码

package snake;

import java.util.Vector;
import javax.microedition.rms.RecordStore;
import javax.microedition.rms.RecordStoreNotFoundException;
import javax.microedition.rms.RecordEnumeration;
import javax.microedition.rms.RecordComparator;

/**
 * <p>Title: J2ME拼图游戏</p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
class Top10RecordStore {
  public Top10RecordStore() {
  }

  public void saveTop10(Vector vector, String s) {
    try {
      try {
        RecordStore.deleteRecordStore(s);
      }
      catch (RecordStoreNotFoundException recordstorenotfoundexception) {}
      RecordStore recordstore = RecordStore.openRecordStore(s, true);
      for (int i = 0; i < vector.size(); i++) {
        String sValue = (String) vector.elementAt(i);
        byte abyte1[] = UnicodeString.stringToByteArray(sValue);
        recordstore.addRecord(abyte1, 0, abyte1.length);
      }

      recordstore.closeRecordStore();
    }
    catch (Exception exception) {}
  }

  public Vector loadTop10(String s) {
    Vector vector = new Vector();
    try {
      RecordStore recordstore = RecordStore.openRecordStore(s, false);
      RecordEnumeration recordenumeration = null;

      recordenumeration = recordstore.enumerateRecords(null,
          new ScoreComparator(), false); //排顺序；

      while (recordenumeration.hasNextElement()) {
        byte[] tmp = recordenumeration.nextRecord();
        String sValue = UnicodeString.byteArrayToString(tmp);
        vector.addElement(sValue);
      }
      //释放资源；
      if (recordenumeration != null) {
        recordenumeration.destroy();
      }
      recordstore.closeRecordStore();
    }
    catch (Exception exception) {}
    return vector;
  }
}