java同一个任务使用for循环与Stream比较

package day13;
 
public class Persion {
   private String name;
    public Persion() {
    }
   public Persion(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
   public void setName(String name) {
        this.name = name;
    }
}

import java.util.ArrayList;
 
public class demo {
    public static void main(String[] args) {
        ArrayList<String> list1 = new ArrayList<>();
        list1.add("迪丽热巴");
        list1.add("宋远桥");
        list1.add("苏星河");
        list1.add("石破天");
        list1.add("石中玉");
        list1.add("老子");
        list1.add("庄子");
        list1.add("洪七公");
        ArrayList<String> list1_0 = new ArrayList<String>();
        for (String s : list1) {
            if(s.length()==3){
                list1_0.add(s);
            }
        }
        ArrayList<String> list1_1 = new ArrayList<>();
        for (int i = 0; i < 3; i++) {
            list1_1.add(list1_0.get(i));
        }
        ArrayList<String> list2 = new ArrayList<>();
        list2.add("古力娜扎");
        list2.add("张无忌");
        list2.add("赵丽颖");
        list2.add("尼格拉斯");
        list2.add("张天爱");
        list2.add("张三丰");
        ArrayList<String> list2_0 = new ArrayList<>();
        for (String s : list2) {
            if(s.startsWith("张")){
                list2_0.add(s);
            }
        }
       ArrayList<String> list2_1 = new ArrayList<>();
        for (int i = 2; i <list2_0.size(); i++) {
            list2_1.add(list2_0.get(i));
        }
        ArrayList<String> list3 = new ArrayList<>();
       list3.addAll(list1_1);
       list3.addAll(list2_1);
        ArrayList<Persion> persions = new ArrayList<>();
        for (String s : list3) {
            persions.add(new Persion(s));
        }
        for (Persion persion : persions) {
            System.out.println(persion.getName());
        }
    }
}

宋远桥
苏星河
石破天
张三丰

import java.util.ArrayList;
import java.util.stream.Stream;
 
public class demo_test_for {
    public static void main(String[] args) {
        ArrayList<String> list1 = new ArrayList<>();
        list1.add("迪丽热巴");
        list1.add("宋远桥");
        list1.add("苏星河");
        list1.add("石破天");
        list1.add("石中玉");
        list1.add("老子");
        list1.add("庄子");
        list1.add("洪七公");
       ArrayList<String> list2 = new ArrayList<>();
        list2.add("古力娜扎");
        list2.add("张无忌");
        list2.add("赵丽颖");
        list2.add("尼格拉斯");
        list2.add("张天爱");
        list2.add("张三丰");
       Stream<Persion> stream = Stream.concat(list1.stream().filter((name) -> name.length() == 3).limit(3),
                list2.stream().filter((name) -> (name.startsWith("张"))).skip(2))
                .map((name) -> new Persion(name));
        stream.forEach((Persion p)-> System.out.println(p.getName()));
 
    }
}

宋远桥
苏星河
石破天
张三丰