java - 关于数组列表中已定义的槽

Question

我想知道是否可以预先填充数组列表的插槽？例如，可以通过这样的赋值操作来填充 st 数组:

    student [] st = new student[3];
    st[0] = new student("214365879","eric banner", 67);
st[1] = new student("988634321","tony park",45);
st[2] = new student("009451223","paul summers",59);

但是使用 arraylist 来代替怎么可能呢？

Answer 1

It is possible to do by using add method from ArrayList

Person p1 = new Person("Izak","1234",33);
Person p2 = new Person("Igal","5668", 25);

List<Person> pList = new ArrayList<>();
pList.add(p1);
pList.add(p2);