1 public class Demo { 2  3     /** 4      * 反射：加载类，获得类的字节码 5      * @param args 6      * @throws ClassNotFoundException  7      */ 8     public static void main(String[] args) throws ClassNotFoundException { 9         10         //111         Class clazz = Class.forName("Person");12         13         //214         Class clazz1 = new Person().getClass();15         16         //317         Class clazz2 = Person.class;18 19     }20 21 }