小编Vin*_*nie的帖子

我一直在摆弄Java Streams.我有一个EmployeeObject,我根据年龄对对象进行分组,我需要员工的名字.这是正确的方法,还是我使用了太多的循环？

employeeList.stream().collect(Collectors.groupingBy(person -> person.age))
    .forEach((age, person) -> {
      System.out.print("In the age " + age + " the following people are present ");
      person.forEach(name -> System.out.print(name.getFirstName() + ", "));
      System.out.println("");
    });