498  

 

 

 

:

 =  


( ):

 


 
- private # protected + public
- private # protected + public
 

 


  

:

 =  

 ( ):

 


 

 :  

  :

 

..1.      .   
 ,     .   
      

  

 

 

 :		
J-

  1-7
- private # protected + public
- private # protected + public
 

1..7 


 

..2.      
.      
   