本文共 793 字，大约阅读时间需要 2 分钟。

java.util.stream.Stream#map

遍历取值

• Teacher

@Data@Builderpublic class Teacher {
       private String name;    private Integer age;}

• Solution

public class Solution {
       public static void main(String[] args) {
           Teacher teacherA = new Teacher.TeacherBuilder().name("AA").build();        Teacher teacherB = new Teacher.TeacherBuilder().name("BB").build();        Teacher teacherC = new Teacher.TeacherBuilder().name("CC").build();        ArrayList
   
     teacherArrayList = Lists.newArrayList();        teacherArrayList.add(teacherA);        teacherArrayList.add(teacherB);        teacherArrayList.add(teacherC);        List
    
      collect = teacherArrayList.stream().map(Teacher::getName).collect(Collectors.toList());        System.out.println(JSON.toJSONString(collect));    }}
    
   

转载地址：http://cfvli.baihongyu.com/