1    /* 
2     * Person Functionality 
3     */
4    
5    package people;
6    
7    public interface PersonSpecification<piblic> {
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       public String detectBoomer();
16   }
17