コード例 #1
0
  public static final void test() {
    Random r = new Random();
    String msg = "";
    while (true) {
      ToolsArrayQueue<Integer> taq = new ToolsArrayQueue<Integer>();
      LinkedList<Integer> ll = new LinkedList<Integer>();
      for (int i = 0; i < 2000000; i++) {
        msg = "";
        try {
          msg += assertequal("Size difference: LL = %d, TAQ = %d; ", ll.size(), taq.size());
          msg +=
              assertequal("Emptiness difference: LL = %d, TAQ = %d; ", ll.isEmpty(), taq.isEmpty());

          Object llv, taqv;
          switch (r.nextInt(4)) {
            case 0:
            case 3:
              int rnd = r.nextInt();
              llv = ll.offer(rnd);
              taqv = taq.offer(rnd);
              msg += assertequal("Offer: LL = %s, TAQ = %s; ", llv, taqv);
              break;
            case 1:
              llv = ll.peek();
              taqv = taq.peek();
              msg += assertequal("Peek: LL = %s, TAQ = %s; ", llv, taqv);
              break;
            case 2:
              llv = ll.poll();
              taqv = taq.poll();
              msg += assertequal("Poll: LL = %s, TAQ = %s; ", llv, taqv);
              break;
          }

        } catch (Exception e) {
          msg += "EXCEPTION [[" + e.toString() + "]]; ";
          e.printStackTrace();
        }
        if (!msg.equals("") || (i % 100000 == 0))
          System.out.println(String.format("%d: %s", i, msg));
      }
      int size = taq.size();
      System.out.println("size: " + size);
      Integer[] fromArr = (Integer[]) taq.toArray(new Integer[size]);
      Integer[] fromIt = new Integer[size];
      int idx = 0;
      for (Integer ii : taq) {
        fromIt[idx++] = ii;
      }
      System.out.print(assertequal("fromIt size: expected %d got %d\n", size, idx));
      for (int i = 0; i < size; i++) {
        msg = "";
        msg += assertequal("arr/it: arr = %s, it = %s; ", fromArr[i], fromIt[i]);
        msg += assertequal("arr/Q: arr = %s, Q = %s; ", fromArr[i], taq.poll());
        if (!msg.equals("")) System.out.println(String.format("%d: %s", i, msg));
      }
      System.out.print(assertequal("size: expected %d got %d\n", 0, taq.size()));
      System.out.println("equality check done");
    }
  }
コード例 #2
0
  // TODO can this be addAll?
  public boolean addQueue(ToolsArrayQueue<T> that) {
    int thatsize = that.size();
    ensureCapacity(size() + thatsize);

    arraycopy(
        that.elements, that.elements.length, that.start, elements, elements.length, end, thatsize);

    end += thatsize;
    if (end >= elements.length) end -= elements.length;
    return true;
  }