Lamda gets the current number of cycles, atomicinteger

demand ： Get the object data and assign it to the new object , And sort the objects , Because you can change the order on the page , So we need to store subscripts for sorting

Method 1 ：

  public static void main(String[] args) {
    List<NwWorkOrderFinish> list = new ArrayList<>();
    list.add(new NwWorkOrderFinish(1, "1", " Zhang San "));
    list.add(new NwWorkOrderFinish(2, "1", " Li Si "));
    list.add(new NwWorkOrderFinish(3, "1", " Wang Wu "));

    Stream.iterate(1, i -> i + 1).limit(list.size()).forEach(index -> {
      System.out.println(index);
    });
  }

Method 2 ：

Use atomic classes AtomicInteger

  public static void main(String[] args) {
    List<NwWorkOrderFinish> list = new ArrayList<>();
    list.add(new NwWorkOrderFinish(1, false, " Zhang San "));
    list.add(new NwWorkOrderFinish(2, false, " Li Si "));
    list.add(new NwWorkOrderFinish(3, false, " Wang Wu "));

    AtomicInteger atomicInteger = new AtomicInteger(0);
    list.stream().forEach(nwWorkOrderFinish -> {
      atomicInteger.decrementAndGet();
      System.out.println(atomicInteger.get());
    });
  }