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Question 4 options:
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The Car class is the derived class.
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The Automobile class is the base class.
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A Car has an Automobile.
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The Car class inherits all the Automobile class's members, except its constructor.
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- In order for a derived class to override a method of the base class, you need to use the __ keyword in the method header of the base class. Question 7 options: extends override virtual baseIn order to extend a class, the new class should have access to all the data and inner workings of the parent class. True FalseWhat function does a class's destructor serve?
- Which statement is true? Question 14 options: An abstract method is a method that appears in a base class but expects to be overridden in a derived class. An abstract method has only a header and no body. When an abstract method appears in a class, it must be overridden in any class that is derived from the class. All of the above.Problem: Course information System Super Class Attributes Methods : Student Studentid, StudentName, Address, Level Set the student details using constructor Display the Student details Sub class : Course Attributes Methods Coures1, Course2, Credit1, Credit 2, Mark1, Mark2 Set the course details using constructor Calculate the total number of credits Calculate the total number of marks Display the course details Driver Class : Display the student details and course details. The following information are required for the assignment Properties with proper data types Methods with proper return types and scope Demonstration of OOP feature- (Inheritance) Demonstration of user defined package Proper naming convention Proper comments in each program and within program Purpose of each code should be explained. Program Execution (output) Presentation (Word Document) 56S1740Class object method This program has three methods and two constructorsone constructor has one parameter and the other none The class has two primitive variables one static and the other notThe static member is initialized to greater than 0 the non-static to 0 Variables in two methods are assigned with the static member main() has an initialized variable with a value not the same as others in the program; it is used as the argument to one of the constructors; this value is used to assign a value to the static class variable The constructor that takes no argument has a variable declared with the same name as the static variable, it is initialize by the non-static variable A.Demonstrate and explain the displayed results of objects created in the following order Constructor(arg)Constructor() B.Create a second program to Demonstrate and explain Constructor()Constructor(arg) Iolecnotes Assignment 4. Write a program to create two files with the names file4 and file4a two 10 element int…
- Cruise Recreational Activities Example Recreational activities include things like aerobics, shuffle board, and swimming. Each activity is identified by an activity code and includes other information such as description. Classes are offered for each activity. A class is uniquely identified by a combination of the activity code and the day/time at which it is held. It is assumed that a specific class will never be offered for the same activity at the same day and time, although it could be offered on a different day and/or time. Other information about a class includes the enrollment limit and the current enrollment count. A class will never include more than one activity. A passenger can sign up for a class as long as there is sufficient room in the class. Passengers are identified by a unique passenger number. Other information stored about passengers includes name, address, and age. Passengers have no limit on the number and type of classes they can sign up for. When they…What precisely are "static members" in a class? When and how may you use them to your advantage?INVENTORY CLASS You need to create an Inventory class containing the private data fields, as well as the methods for the Inventory class (object). Be sure your Inventory class defines the private data fields, at least one constructor, accessor and mutator methods, method overloading (to handle the data coming into the Inventory class as either a String and/or int/float), as well as all of the methods (methods to calculate) to manipulate the Inventory class (object). The data fields in the Inventory class include the inventory product number (int), inventory product description (String), inventory product price (float), inventory quantity on hand (int), inventory quantity on order (int), and inventory quantity sold (int). The Inventory class (java file) should also contain all of the static data fields, as well as static methods to handle the logic in counting all of the objects processed (counter), as well as totals (accumulators) for the total product inventory and the total product…
- Super Class : Employee Attributes : Employee_id name, salary Methods : • Read the employee details • Display the employee details Sub class : Salary_details Attributes : HRA,CCA,DA,Gross_salary Methods : • Calculate the HRA, DA,CCA • Calculate the Gross_Salary and return the gross salary • Display the salary details. Driver Class : • Display the employee details and salary details. The following information are required for the assignment Properties with proper data types Methods with proper return types and scope Demonstration of OOP feature (Inheritance) Demonstration of OOP feature (polymorphism) Proper naming convention Proper comments in each program and within program Purpose of each code should be explained. Program Execution (output) Presentation (Word Document)Design a Ship class that has the following members: A member variable for the name of the ship (a string) A member variable for the year that the ship was built (a string) A default and parameterized constructor and appropriate getters and setters. A toString method that displays the ship’s name and the year it was built. Design a CruiseShip class that is derived from the Ship class. The CruiseShip class should have the following members: A member variable for the maximum number of passengers (an int) A default and parameterized constructor and appropriate getters and setters. A toString method that overrides the toString function in the base class. The CruiseShip class’s toString function should display only the ship’s name and the maximum number of passengers. Design a CargoShip class that is derived from the Ship class. The CargoShip class should have the following members: A member variable for the cargo capacity in tonnage (an int). A default and parameterized constructor and…Design a Ship class that has the following members: A member variable for the name of the ship (a string) A member variable for the year that the ship was built (a string) A default and parameterized constructor and appropriate getters and setters. A toString method that displays the ship’s name and the year it was built. Design a CruiseShip class that is derived from the Ship class. The CruiseShip class should have the following members: A member variable for the maximum number of passengers (an int) A default and parameterized constructor and appropriate getters and setters. A toString method that overrides the toString function in the base class. The CruiseShip class’s toString function should display only the ship’s name and the maximum number of passengers. Design a CargoShip class that is derived from the Ship class. The CargoShip class should have the following members: A member variable for the cargo capacity in tonnage (an int). A default and parameterized constructor and…
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