int type property in javaBean

[kongtao]

Hello everybody, I don't sure I can use the integer type property in the javaBeans. Today ,I completed  a simpe javaBean and give a simple method. See following: ---------------------------------------------------     int age;     public void setAge(String person_age){        age=Integer.parseInt(person_age);     }     public int getAge(){         return age;     } --------------------------------------------------- Unfortunately,following error msg occurs: <2002/7/27 �U��04��40��09��> <Error> <HTTP> <[WebAppServletContext(6922527,Defau ltWebApp,/DefaultWebApp)] Servlet failed with Exception java.lang.NoSuchMethodError: com.sabrina.javabean.PersonInfo.setAge(Ljava/lang/String;) I was confused by this NoSuchmethodError. Why?Can't I use the int type property in this javaBean.Pls help me. Any help would be appreciated.