对象照镜子后可以得到的信息：某个类的属性、方法和构造器
获取Class类的实例1、已知一个类的全类名，可以用class类的静态方法forName获取
2、已知具体的类，通过类的class属性获取
3、已知某个类的实例，调用该实例的getClass()方法获取
public class Test03 {
public static void main(String[] args) throws ClassNotFoundException {
Person person = new Student();
System.out.println(person.name);
//方式一: 通过对象获得
Class c1 = person.getClass();
//方式二：通过forname获得
Class c2 = Class.forName("com.zhenlu.reflection.Student");
//方式三：通过类名。class获得
Class c3 = Student.class;
}
}
class Person{
public String name;
public Person(){};
public Person(String name){
this.name = name;
}
@Override
public String toString() {
return "Person{" +
"name='" + name + ''' +
'}';
}
}
class Student extends Person{
public Student(){
this.name = "xuesheng";
}
}
class Teacher extends Person{
public Teacher(){
this.name = "laoshi";
}
}
