code: public void doRandomReads(int readCnt) {
          Random rand = new Random();
          int idStart = _partition.getIdStart();
          int idCount = _partition.getIdCount();
          for (int i = 0; i < readCnt; i++) {
              int memberId = idStart + rand.nextInt(idCount);
              System.out.printf("MemberId=%-10d MemberData=%s%n", memberId, new String(_partition.get(memberId)));
          }
      }
docs: Perform a number of random reads from the underlying data partition.
  
  @param readCnt the number of reads