java8新特性

		List list = new ArrayList<>();
		Stream stream = list.stream();// 顺序流
		Stream parallelStream = list.parallelStream();// 并行流

		Stream stream2 = Stream.iterate(0, x -> x + 2).limit(6);
		stream2.forEach(System.err::println);

		//将文件每一行内容转换成流
		BufferedReader reader =  new BufferedReader(new FileReader("D:\test\stream_text.txt"));
		Stream lineStream = reader.lines();
		lineStream.forEach(System.out::println);