Stream流

1.创建流（并行流和顺序流）

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Stream;

/**
 * Created by sk on 2021/1/13
 */
public class Test {
    public static void main(String[] args) {
        List<String> list = new ArrayList<>();
        list.add("张三");
        list.add("李四");
        list.add("韩信");

        //顺序流
        Stream<String> stream = list.stream();
        stream.forEach(System.out::println);
        System.out.println("-------------------------");
        //并行流
        Stream<String> stringStream = list.parallelStream();
        stringStream.forEach(System.out::println);
    }
}

2.输出

 3.流基础操作

import java.util.stream.Stream;

/**
 * Created by sk on 2021/1/13
 */
public class Test1 {

    public static void main(String[] args) {

        Stream<Integer> stream = Stream.of(6, 4, 6, 7, 3, 9, 8, 10, 12, 14, 14);

        Stream<Integer> newStream = stream
                //过滤流中符合条件的某些元素 6 6 7 9 8 10 12 14 14
                .filter(s -> s > 5)
                //去除重复元素  6 7 9 8 10 12 14
                .distinct()
                //跳过n元素，配合limit(n)可实现分页  8 10 12 14
                .skip(3)
                //获取n个元素 8 10
                .limit(2);
        newStream.forEach(System.out::print);
    }
}