java - 如何从ArrayList中删除一个对象？

Question

我想根据学生姓名从 ArrayList 中删除一个对象，每个对象有 5 个元素。问题:如何从文本文件中删除对象。

ArrayList<Student> studentList= new ArrayList<Student>();
Iterator iter = studentList.iterator();

public DVD remove(String removeName) {
    while (iter.hasNext()) {
        for (Student stu : studentList) {
            if (stu .GetName().toUpperCase().contains(removeName.toUpperCase())) {
                System.out.println("Found And Removed");
                iter.remove();
                return stu ;
            }

            System.out.println("Not Found");
        }
    }
    return null;

}

从文本文件中读入每个学生。每行一个元素。

例如:

  John Smith
  Undergrad
  21 years old
  2010
  2014
  Pocahantas
  Professor
  369 years old
  1599
  1603
  Etc... // new person
  etc....

Answer 1

我认为你不需要迭代器:

    public Student remove(String removeName) {
        for (Student stu : studentList) {
            if (stu.getName().toUpperCase().contains(removeName.toUpperCase())) {
                System.out.println("Found and Removed");
                studentList.remove(stu);
                return stu;
            }
         }
         System.out.println("Not Found");
         return null;
    }