Java8 stream 提取對象 List 中的某一字段生成新的 List

//輸出List StudentInfo.printStudents(studentList); //從對象列表中提取一列(以name爲例) List<String> nameList = studentList.stream().map(StudentInfo::getName).collect(Collectors.toList()); //提取後輸出name nameList.forEach(s-> System.out.println(s));