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Stream流切割N个List

热度:31   发布时间:2024-02-22 16:24:51.0
public static void main(String[] args) {List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7);int limit = countStep(list.size());//方法一:使用流遍历操作List<List<Integer>> mglist = new ArrayList<>();Stream.iterate(0, n -> n + 1).limit(limit).forEach(i -> {mglist.add(list.stream().skip(i * MAX_NUMBER).limit(MAX_NUMBER).collect(Collectors.toList()));});System.out.println(mglist);//方法二:获取分割后的集合List<List<Integer>> splitList = Stream.iterate(0, n -> n + 1).limit(limit).parallel().map(a -> list.stream().skip(a * MAX_NUMBER).limit(MAX_NUMBER).parallel().collect(Collectors.toList())).collect(Collectors.toList());System.out.println(splitList);
}

 

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