Calculate hra,da and gross salary of worker by passing Object as Parameter

import java.io.*; 
           class salary 
             { 
                 float h,d,g; 
                 void sal(salaryobj m) 
                   { 
                       h=(float)m.s*60/100; 
                       d=(float)m.s*98/100; 
                       g=h+d; 
                       System.out.println("HRA is:"+h); 
                       System.out.println("DA is:"+d); 
                       System.out.println("Gross Salary is:"+g); 
                  } 
            }; 
                    class salaryobj 
                      { 
                           BufferedReader bf=new BufferedReader(new InputStreamReader (System.in)); 
                           String n,h; 
                           int  c,s; 
                           salaryobj() 
                           throws IOException 
                                { 
                                     System.out.println("Enter code "); 
                                     h=bf.readLine(); 
                                     c=Integer.parseInt(h); 
                                     System.out.println("Enter name "); 
                                     n=bf.readLine(); 
                                     System.out.println("Enter salary "); 
                                     h=bf.readLine(); 
                                     s=Integer.parseInt(h); 
                               } 
                                    void showdata() 
                                      { 
                                          System.out.println("Code number :"+c); 
                                          System.out.println("worker;s name :"+n); 
                                          System.out.println("Salary :"+s); 
                                      } 
                                          public static void main(String args[]) throws IOException 
                                                    { 
                                                        salaryobj k=new salaryobj(); 
                                                        k.showdata(); 
                                                        salary p=new salary(); 
                                                        p.sal(k); 
                                                     } 
                      }