have to submit assignment in next 8 hours so please be fast.
Ok here are specification.
-->person class with name, address, contact no, age and setters and getters
-->Student class extends Person and also have roll_no and grade and array for marks of 5 subjects.
-->Have to create a link list in which student is the data part of each node and node next to stor adress
--> Now i have to sort this linklist alphabetically. so i designed interface