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/**

* @program JavaBooks

* @description: map

* @author: mf

* @create: 2020/01/25 12:48

*/

package com.java8;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.stream.Collectors;

public class MapsDemo {

public static void main(String[] args) {

// Map<Integer, String> map = new HashMap<>();

// for (int i = 0; i < 10; i++) {

// map.put(i, "val" + i);

// }

// map.forEach((id, val) -> System.out.println(val));

Student s1 = new Student(1L, "肖战", 15);

Student s2 = new Student(2L, "王一博", 15);

Student s3 = new Student(3L, "杨紫", 17);

Student s4 = new Student(4L, "李现", 17);

List<Student> students = new ArrayList<>();

students.add(s1);

students.add(s2);

students.add(s3);

students.add(s4);

List<String> names = students.stream().map(s -> "名字:" + s.getName()).collect(Collectors.toList());

names.forEach(a -> System.out.println(a));

}

}