package com._520it.reflect; class Person { public Person() { System.out.println("无参构造器"); } public Person(String name) { System.out.println("含有name的构造器"); } private Person(String name, int age) { System.out.println("有参构造器" + name + age); } public void doWork() { System.out.println("doWork方法"); } } public class RefectDemo01 { public static void main(String[] args) throws Exception { // 三种方式获取clazz对象 //Class> c1 = Class.forName("com._520it.reflect.Person"); //Class> c2=Person.class; Class> c3=(new Person().getClass()); } }