Concept explainers
Passing arguments to base classes constructors solves the problem of selecting a base class constructor in inheritance. Can the same problem arise with composition? That is, might there be a case where a constructor of a class might have to pass arguments to the constructor of a contained class? If so, guess the syntax that would be used to pass the parameters, and construct a simple example to verify your guess.
Want to see the full answer?
Check out a sample textbook solutionChapter 11 Solutions
STARTING OUT WITH C++ MPL
Additional Engineering Textbook Solutions
Starting Out With Visual Basic (8th Edition)
Elementary Surveying: An Introduction To Geomatics (15th Edition)
Thermodynamics: An Engineering Approach
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Mechanics of Materials (10th Edition)
Java: An Introduction to Problem Solving and Programming (8th Edition)
- Write a C++ program for student’s evaluation concept using inheritance. Algorithm Step1: create a class studentpersonal declare rollno, age, name, sex in protected mode. Step2: Using a parameterized constructor initialize the values for all the data members. Step3: Create another class studentmark that is inherited from the baseclass and having the data members mark1 ,mark2 ,mark3,mark4 Using a parameterized constructor initialize the value for mark1,mark2,mark3,mark4. Step4: Create another class called studentsports and declare score as protected mode. Step5: Create a class studentresult and public inherited form studentmarks and studentsports having the data members total, avg, and grade. Step6: Calculate the total and avg and display the result.arrow_forwardDeclare classes Person and Student where Student is derived from Person class. Person has Name and Student has RollNo as its private member. Create a Student class object and initialize it with the already existing object of Student class. Analyze the behavior of default constructors of Person and Student classes. Note: use OOP Concepts with C++ language Solve as soon as possiblearrow_forwardcan you solve this Q please?arrow_forward
- Programme in C++. Create any two classes and conduct inheritance by adding 3 data members to parent class and 2 to child class. (classes should include data members). Parent class requires a parameterized constructor. Parent class constructor requires child class constructor values. Create a child class object and show its data on the console.arrow_forwardUse C++ to code. Inheritance may be performed by creating two classes, with three data members in the parent class and two in the child class. It's important for classes to have data members. The constructor of the parent class must take parameters. The values from the child class's constructor are needed by the parent class's constructor. Make a new object of the child class and print its information to the console.arrow_forwardclassarrow_forward
- Write a C++ Program with proper explanation Step by step to Create a class person having 5 data members.• Name • Address• Cnic• Gender • AgeAll data members should be hidden by the use of data hiding concept. These values will be initialize using the child class constructor. For getting the values of these data members getter method will be created for all data members in the parent class that is Person. Create another class Teacher that will inherit properties and functionalities from person class. Teacher class will have experience data member and an array of subjects taught by that particular teacher. then Provide setter and getter methods for all data members. Teacher is allowed to teach at least 2 subjects. Perform input validation in setSubject() function so the user will not be able to input anything except string value. Default experience of the teacher will be 2 years. Parameterized constructor of person class will be called using the teacher class constructor. This will…arrow_forwardwirte a c++ program c++ 1. Student Evaluation using Inheritance TASK Step1: Create a class studentpersonal declare rollno, age, name, sex in protected mode. Step2: Using a parameterized constructor initialize the values for all the data members. Step 3: Create another class studentmark that is inherited from the base class and having the data members mark1, mark2, mark3 and mark4. Using a parameterized constructor initialize the value for mark1,mark2,mark3 and mark4. Step 4: Create another class call studentsports and declare score as protected mode. Step 5: Create a class studentresult and public inherited form studentmarks and studentsports having the data members total, avg,grade. Step6: Calculate the total and average and display the result.arrow_forwardUse C++ to code. Inheritance may be performed by creating two classes, with three data members in the parent class and two in the child class. (classes must have access to data members). The parent class's constructor must take parameters. The values from the child class's constructor are needed by the parent class's constructor. Produce an instance of a subclass and print its information to the console.arrow_forward
- What will be the order of execution of base class constructors in the following method of inheritance: class A:public B{ . }; Select one: a.constructor of B, then constructor of A will be executed b.only the constructor of B will be executed c.constructor of A, then constructor of B will be executed d.only the constructor of A will be executedarrow_forwardIn C++, create a three-level hierarchy of classes with default constructors, along with destructors, both of which announce themselves to cout. Verify that for an object of the most derived type, all three constructors and destructors are automatically called. Explain the order in which the calls are made.arrow_forwardQUESTION 2 In object oriented programming, inheritance improves code readability and maintenance by allowing new classes to re-use existing classes. Use inheritance to solve the following problem: A: A Car is a Vehicle and has a name, a max_speed value and a number_of_cylinders attribute that specifies the number of cylinders in the car's engine. - Add accessor and mutator methods to get and set the values of the class attributes. - Attributes of the car objects are initialized at the time when the object is created. - When a car object is printed, its name, max_speed and number_of_cylinders are shown. B: An Airplane is also a Vehicle and has a name, a max_speed value and a number_of engines attribute that specifies the number of jet engines the airplane has. - Add accessor and mutator methods to get and set the values of the class attributes. - Attributes of the airplane objects are initialized at the time when the object is created. - When an airplane object is printed, its name,…arrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education