反射获取类对象

import demo.Student;
public class test {
    public static void main(String[] args) {
        try {
            Class<?> aClass = Class.forName("demo.Student");
            System.out.println("第一种获取方式：" + aClass);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        Class bClass = Student.class;
        System.out.println("第二种获取方式" + bClass);
        Student student = new Student();
        Class<? extends Student> cClass = student.getClass();
        System.out.println("第三种获取方式" + cClass);
    }
}