private ArrayList<Stduent>students=new ArrayList<Student>();
.
.
Student s=new Stduent("Chris Kerry","30008990");
students.add(s);
students.add(0,new Student(fscanner));
for(int i;i<students.size();i++)
System.out.println(stduents.get(i).toString());
for(Student st : students)
System.out.println(st.toString());
if(stduents.contains(current){
file.println(current);
students.remove(current);
}
这不是一段完整的代码,是上课时的一个例子,重点是说明ArrayList的,但我有点看不懂,请高手帮我解释一下吧,特别是st:students这一段,谢谢了