Question: JAVA programming (a)Design a system that consist of a few classes. The class diagram should implement the concept of Encapsulation, Inheritance and Polymorphism. (The number

JAVA programming (a)Design a system that consist of a few classes. The class diagram should implement the concept of Encapsulation, Inheritance and Polymorphism. (The number of classes in your system should be 5~10) (30 Marks) (b) Based on the class diagram you have to write a java program and a test program. (30 Marks) (c) Create interfaces for your system and connect to a database. (20 Marks) (d) Write a report and present your system. (20 Marks)
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