public String toConsoleString() {
   StringBuffer strbuffer = new StringBuffer();
   for (LocalHistoryPO historyPO : this.localHistoryPOs) {
     strbuffer.append(historyPO.toConsoleString());
     strbuffer.append("\n");
   }
   return strbuffer.toString();
 }
 public boolean addLocalHistoryPO(LocalHistoryPO localHistoryPO) {
   localHistoryPOs.add(localHistoryPO);
   if (localHistoryPO.getMaxDoubleHit() > maxDoubleHit) {
     maxDoubleHit = localHistoryPO.getMaxDoubleHit();
   }
   if (localHistoryPO.getScore() > maxScore) {
     this.maxScore = localHistoryPO.getScore();
   }
   totalScore += localHistoryPO.getScore();
   count += 1;
   return true;
 }