Adding the Contents of Two objects by passing objects as parameter.

import java.io.*; 
            class addr 
               { 
                    int qt; 
                   float pr; 
                   void addition(stockadd  m, stockadd n) 
                     { 
                          qt=m.qty+n.qty; 
                          pr=m.price+n.price; 
                          System.out.println("Total quantity is :"+qt); 
                          System.out.println("Total price is:"+pr); 
                     } 
               }; 
                         class stockadd 
                            { 
                                BufferedReader bf=new BufferedReader(new InputStreamReader(System.in)); 
                                String h; 
                                int qty; 
                                float price; 
                                stockadd() 
                                throws IOException 
                                     { 
                                          System.out.println("Enter Quantity  "); 
                                          h=bf.readLine(); 
                                          qty=Integer.parseInt(h); 
                                          System.out.println("Enter price  "); 
                                          h=bf.readLine(); 
                                          price=Float.parseFloat(h); 
                                     } 
                                           void showdata() 
                                               { 
                                                    System.out.println("Quantity :"+qty); 
                                                    System.out.println("price  :"+price); 
                                               } 
                                                     public static void main(String args[])throws IOException 
                                                         { 
                                                              System.out.println("Enter details of first stock : "); 
                                                              stockadd u=new stockadd(); 
                                                              System.out.println("Enter details of second stock : "); 
                                                              stockadd v=new stockadd(); 
                                                              System.out.println("The detail of first stock is :"); 
                                                              u.showdata(); 
                                                              System.out.println("The details of second stock is :"); 
                                                              v.showdata(); 
                                                              System.out.println("The details of stock after addition is:"); 
                                                              addr w=new addr(); 
                                                              w.addition(u,v); 
                                                          } 
                          }