案例：List集合存储学生对象并遍历

public class ListDemo {
    public static void main(String[] args) {
        //创建List集合对象
        List<Student> list = new ArrayList<Student>();

        //创建学生对象
        Student s1 = new Student("歪比歪比", 30);
        Student s2 = new Student("阿巴阿巴", 20);
        Student s3 = new Student("芜湖起飞", 66);

        //将学生对象添加到集合
        list.add(s1);
        list.add(s2);
        list.add(s3);

        //遍历集合,(迭代器)
        Iterator<Student> it = list.iterator();
        while (it.hasNext()) {
            Student s = it.next();
            System.out.println(s.getName() + "," + s.getAge());
        }

        System.out.println("--------");

        //遍历集合,(for循环)
        for (int i = 0; i < list.size(); i++) {
            Student s = list.get(i);
            System.out.println(s.getName() + "," + s.getAge());
        }
    }
}