QI. Inheritance System A/ Write the java code of the interface IComputer that contains the followings: • The property IPAdress (number) with get and set assessors. • The method Cost() that returns the total cost of a computer (PriceComputer + Tax). Тах 5%. B/ Write the java code of the abstract class Computer that contains the followings: • 4 protected attributes : O Numc, integer o SpeedCPU, number O Ram, number O PriceComputer, double A constructor that initializes the attributes of the class. • A public property (with both set and get accessors) called Price, which is used to initialize the PriceComputer. Check if the Price is positive (>0). A virtual method PrintInfo() that prints the values of the attributes of the class. C/ Write the java code of the class Server that inherits the base class Computer and implements the interface IComputer, and contains the followings: A private attribute ipadress (number) • Constructor that initializes all the attributes of the class. • Override the method PrintInfo() that displays the values of the attributes of the class. • Override and implement all the inherited methods and properties (form the inherited class and the implemented class). D/ In the main method: Create an object of the class Computer; • Create an array Cmp of type Server and size 2; • Create 2 objects of Server; • Store these objects in the array Cmp; • Print the information of the stored objects in the array Cmp; Q2/ Exception Handling Write a java code to define a new type of exception called AgedPersonException. The exception occurs when the given age is greater than 60 year.

QI. Inheritance System A/ Write the java code of the interface IComputer that contains the followings: • The property IPAdress (number) with get and set assessors. • The method Cost() that returns the total cost of a computer (PriceComputer + Tax). Тах 5%. B/ Write the java code of the abstract class Computer that contains the followings: • 4 protected attributes : O Numc, integer o SpeedCPU, number O Ram, number O PriceComputer, double A constructor that initializes the attributes of the class. • A public property (with both set and get accessors) called Price, which is used to initialize the PriceComputer. Check if the Price is positive (>0). A virtual method PrintInfo() that prints the values of the attributes of the class. C/ Write the java code of the class Server that inherits the base class Computer and implements the interface IComputer, and contains the followings: A private attribute ipadress (number) • Constructor that initializes all the attributes of the class. • Override the method PrintInfo() that displays the values of the attributes of the class. • Override and implement all the inherited methods and properties (form the inherited class and the implemented class). D/ In the main method: Create an object of the class Computer; • Create an array Cmp of type Server and size 2; • Create 2 objects of Server; • Store these objects in the array Cmp; • Print the information of the stored objects in the array Cmp; Q2/ Exception Handling Write a java code to define a new type of exception called AgedPersonException. The exception occurs when the given age is greater than 60 year.