1    /* 
2    *Person functionality 
3     */
4    
5    package people;
6    
7    public interface PersonSpecification {
8    
9        public String firstName();
10       public String lastName();
11       public int month();
12       public int day();
13       public int year();
14       public String initials();
15       public boolean isBoomer();
16   
17   
18   }
19