Student Razan Alghamdi finished the unit what is class Object in java in course java113-ksu

Student Razan Alghamdi finished the unit casting in polymorphizm in course java113-ksu

Student Razan Alghamdi finished the unit ploy and abs in Array in course java113-ksu

Student Razan Alghamdi finished the unit Abstract in course java113-ksu

Student Razan Alghamdi finished the unit Polymorphism in course java113-ksu