Student Waad alghamdi finished the unit Interface in course java113-ksu

Student Waad alghamdi finished the unit final and static revision in course java113-ksu

Student Waad alghamdi finished the unit what is class Object in java in course java113-ksu

Student Waad alghamdi finished the unit casting in polymorphizm in course java113-ksu

Student Waad alghamdi finished the unit ploy and abs in Array in course java113-ksu