获取类字节码文件 .class 文件的3种方法

package fanxin;

public class RefectDemo {



public static void main(String[] args) throws ClassNotFoundException{

getClassObj_1() ;

}

public static void getClassObj_1()

{

Person p=new Person();

Class c=p.getClass();

Person p1=new Person();

Class c1=p1.getClass();

System.out.println(c==c1);//true

}

public static void getClassObj_2()

{

Class c=Person.class;

}

public static void getClassObj_3() throws ClassNotFoundException

{

String classname="fanxin.Person";

Class c=Class.forName(classname);

System.out.println(c);

}

}