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