user interface - Using prototype (Design Pattern) to do a simple Frame with Buttons on JAVA -

im trying implement construction design patterns of gof, 1 of them "prototype". idea create user interface (a frame buttons , labels) in wich can use prototype clone button, because program memory game (about mario bros :d) of on java. want implement own clone method.

what think need make button, , when clone change name of button (and maybe image button shows).

first of have class named prototype clone:

import javax.swing.jbutton;  public interface prototype  {     //method make clone     public prototype makeclone();      public jbutton getbuttonname();     public void setbuttonname(string eldato);  }//end interface prototype 

then, have concreteprototypebutton implement interface prototype , use cloning method.

import javax.swing.jbutton;      public class concreteprototypebutton implements prototype{         private string adata;         static jbutton abutton;         //--------          public prototype makeclone(){             prototype aclone;             //---------------             aclone = new concreteprototypebutton();             aclone.setnombreboton(this.adata);             return aclone;         }//end makeclone           public string getbuttonname()         {             return adata;         }//end getnombreboton          public void setbuttonname(string adata) {              object thename =new string(adata);             thename=thename.tostring();             //------------              this.adata=(jbutton)thename;         }//end setbuttonname method      }//end class concreteprototypebutton 

but java shows me problem in method getbuttonname on line:

return adata; 

finally have third class named userinterface client, can not have main 'cause main in class complete program.

import javax.swing.*;  public class interfaz {      prototype abutton;     prototype buttonone;     prototype buttontwo;     //-------------------      abutton = new concreteprototypebutton();     abutton.setbuttonname("buttonone");     //we make clone     buttonone = abutton.makeclone();      abutton.setbuttonname("buttontwo");     //we make clone     buttontwo = abutton.makeclone();      //and continue creating buttons reach 16 buttons. }//end clase interfaz 

but i'm doing wrong , idk it, on class show me errors on line:

prototype buttontwo; 

and on this:

}//end clase interfaz 

the idea have this: http://imageshack.us/photo/my-images/855/te7q.png/ (tell me if can not see image).

i apreciate lot if can me. in advance.

additional notes: when change method returns jbutton string java sends me error: - implements prototype.getnombreboton - return type incompatible with: prototype.getnombreboton

and if change too. how can declarate target of classes make objects "buttons"?

first of all

prototype buttontwo;

and buttontwo = abutton.makeclone();

both different should buttontwo

and return adata;

you returning string in place of jbutton , in method

public void setbuttonname(string adata) {

    string thename;     //------------     thename = (string) adata;     adata = thename; } 

the adata here refering local variable of method of setbuttonname(string adata) in place of adata = thename; should have used this.adata = thename; give error assigning string jbutton. may want write method work

public void setbuttonname(string adata) {

       object thename=new string(adata);        thename=thename.tostring();         //------------         this.adata=(jbutton)thename;      } 

this per code provided here dont know requirement wanted make. try might works.