Yahoo Web Search

Search results

1. Top results related to inheritance in c++ practice questions

   • A few C++ inheritance questions in practice on my example?

     Top Answer

     Answered May 03, 2015 · 2 votes

     The following code will achieve what you are describing:

     class Vector3D {public: Vector3D(int x, int y, int z) : x_(x), y_(y), z_(z) { } virtual ~Vector3D() = default; int get_x() { return x_; } int get_y() { return y_; } int get_z() { return z_; } // ... other member functions ...private: int x_, y_, z_;};class Vector2D : public Vector3D {public: Vector2D(int x, int y) : Vector3D(x, y, 0) { } virtual ~Vector2D() = default;};

     All member functions defined in Vector3D will be available to an object of type Vector2D. This also means that, in this implementation, you could call get_z() on an object of type Vector2D.

     Vector2D v2d(5, 7);int z = v2d.get_z(); // z will be 0-

     This is probably not what you want. If it is what you want, great! But also consider this:

     Vector3D* ptr = new Vector2D(8, 3);-

     That code is legal, do you also want to allow that to happen?

     By the way, inheriting Vector2D from Vector3D is required if you want Vector2D objects to behave like Vector3D objects:

     #include <vector>std::vector<Vector3D*> v;v.push_back(new Vector3D(1, 2, 3));v.push_back(new Vector2D(4, 5)); // Legal because Vector2D inherits from Vector3D-v[0]->get_z(); // = 3v[1]->get_z(); // = 0

     Sidenote: never use raw pointers in production code, use std::shared_ptr<Vector3D> instead!!

     If this implementation is good depends on your needs and is for you to decide. It has both advantages and disadvantages.

     To answer your other questions:

     How do I write the constructor of Vector2D which will build a vector3D with the third coordinate equal to zero?

     You need to use initialization lists to call a certain constructor from a base class:

     #include <iostream>-class Base {public: Base(int i) { std::cout << "Base ctor with " << i << "\n"; }};class Derived : public Base {public: Derived(int i, int j) : Base(i) { // Calls Base's constructor with argument 'i' std::cout << "Derived ctor with " << i << " and " << j << "\n"; }};int main(int argc, char** argv) { Derived d(1, 2); return 0;}

     Compile and run:

     $ Base ctor with 1$ Derived ctor with 1 and 2-

     Initializing objects inside an initialization list will make sure their respective constructors get called first.

     If I make the coordinates private how do I inherit them and use them as coordinates of the Vector2D, or even if I make them protected will that mean that vector2D will have it's own separate coordinates?

     private members are only accessible from within the class itself. To allow a derived class to access them, you need to make them protected (or public, but that will make it accessible by everyone!).

     class Base {protected: int touch_me;private: int cant_touch_me;};class Derived : public Base {public: void foo() { int touch_me = 0; // Legal. int cant_touch_me = 1; // Illegal, will result in a compile error. }private: int lonely;};

     All objects of type Base will have two data members: touch_me and cant_touch_me.

     All objects of type Derived will have three data members: touch_me, cant_touch_me and lonely. Functions declared and implemented by Derived will only be able to access touch_me and lonely, but the object does contain all three!

     Check all answers on Stack Overflow

     1/5

   • Inheritance in C++

     The capability of a class to derive properties and characteristics from another class is called Inheritance. Inheritance is one of the most important features of Object-Oriented Programming. 

     Inheritance is a feature or a process in which, new classes are created from the existing classes. The new class created is called “derived class” or “child class” and the existing class is known as the “base class” or “parent class”. The derived class now is said to be inherited from the base class.

     When we say derived class inherits the base class, it means, the derived class inherits all the properties of the base class, without changing the properties of base class and may add new features to its own. These new features in the derived class will not affect the base class. The derived class is the specialized class for the base class.

     • Sub Class: The class that inherits properties from another class is called Subclass or Derived Class. 

     Check all answers on Geeksforgeeks

     2/5

   • Inheritance in C++

     The capability of a class to derive properties and characteristics from another class is called Inheritance. Inheritance is one of the most important features of Object-Oriented Programming. 

     Inheritance is a feature or a process in which, new classes are created from the existing classes. The new class created is called “derived class” or “child class” and the existing class is known as the “base class” or “parent class”. The derived class now is said to be inherited from the base class.

     When we say derived class inherits the base class, it means, the derived class inherits all the properties of the base class, without changing the properties of base class and may add new features to its own. These new features in the derived class will not affect the base class. The derived class is the specialized class for the base class.

     • Sub Class: The class that inherits properties from another class is called Subclass or Derived Class. 

     Check all answers on Geeksforgeeks

     3/5

   • Inheritance in C++

     The capability of a class to derive properties and characteristics from another class is called Inheritance. Inheritance is one of the most important features of Object-Oriented Programming. 

     Inheritance is a feature or a process in which, new classes are created from the existing classes. The new class created is called “derived class” or “child class” and the existing class is known as the “base class” or “parent class”. The derived class now is said to be inherited from the base class.

     When we say derived class inherits the base class, it means, the derived class inherits all the properties of the base class, without changing the properties of base class and may add new features to its own. These new features in the derived class will not affect the base class. The derived class is the specialized class for the base class.

     • Sub Class: The class that inherits properties from another class is called Subclass or Derived Class. 

     Check all answers on Geeksforgeeks

     4/5

   • Inheritance in C++

     The capability of a class to derive properties and characteristics from another class is called Inheritance. Inheritance is one of the most important features of Object-Oriented Programming. 

     Inheritance is a feature or a process in which, new classes are created from the existing classes. The new class created is called “derived class” or “child class” and the existing class is known as the “base class” or “parent class”. The derived class now is said to be inherited from the base class.

     When we say derived class inherits the base class, it means, the derived class inherits all the properties of the base class, without changing the properties of base class and may add new features to its own. These new features in the derived class will not affect the base class. The derived class is the specialized class for the base class.

     • Sub Class: The class that inherits properties from another class is called Subclass or Derived Class. 

     Check all answers on Geeksforgeeks

     5/5

   Show moreShow less

2. People also ask

   How to implement inheritance in C++?

   • Implementing inheritance in C++: For creating a sub-class that is inherited from the base class we have to follow the below syntax. Derived Classes: A Derived class is defined as the class derived from the base class. //body access-specifier — either of private, public or protected. If neither is specified, PRIVATE is taken as default

   Inheritance in C++ - GeeksforGeeks

   www.geeksforgeeks.org/inheritance-in-c/

   See all results for this question

   What is inheritance in object oriented programming?

   • Inheritance is one of the most important features of Object-Oriented Programming. Inheritance is a feature or a process in which, new classes are created from the existing classes. The new class created is called “derived class” or “child class” and the existing class is known as the “base class” or “parent class”.

   Inheritance in C++ - GeeksforGeeks

   www.geeksforgeeks.org/inheritance-in-c/

   See all results for this question

   What is multiple inheritance in C++?

   • Output:- Enter the Value of A= 3 3 Enter the Value of B= 5 5 Product of 3 * 5 = 15 2. Multiple Inheritance: Multiple Inheritance is a feature of C++ where a class can inherit from more than one class. i.e one subclass is inherited from more than one base class. Syntax: class subclass_name : access_mode base_class1, access_mode base_class2, ....

   Inheritance in C++ - GeeksforGeeks

   www.geeksforgeeks.org/inheritance-in-c/

   See all results for this question

   What is protected inheritance in C++?

   • protected: The public members of the base class become protected members in the derived class. The private members of the base class are always private in the derived class. To learn more, visit our C++ public, private, protected inheritance tutorial. Suppose, base class and derived class have member functions with the same name and arguments.

   C++ Inheritance - Programiz

   www.programiz.com/cpp-programming/inheritance

   See all results for this question

3. www.codesdope.com › practice › cpp-multiple-inheritancePractice questions of Cpp - Multiple inheritance - CodesDope

   www.codesdope.com › practice › cpp-multiple-inheritance

   • Cached

   Practice questions on Multiple inheritance. Level 1. 1. Create two classes named Mammals and MarineAnimals. Create another class named BlueWhale which inherits both the above classes.

4. www.geeksforgeeks.org › c-plus-plus-gq › inheritance-gqQuiz about C++ Inheritance - GeeksforGeeks

   www.geeksforgeeks.org › c-plus-plus-gq › inheritance-gq

   • Cached

   Mar 22, 2024 · C++ Inheritance Quiz will help you to test and validate your C++ Quiz knowledge. It covers a variety of questions, from basic to advanced. The quiz contains 15 questions. You just have to assess all the given options and click on the correct answer.

5. www.includehelp.com › cpp-programs › cpp-programsC++ Inheritance Programs/Examples - C++ solved programs

   www.includehelp.com › cpp-programs › cpp-programs

   • Cached

   • C++ Program to print right angled (Right oriented) pyramid of numbers. In this program, we are going to learn how to print numbered pyramids of numbers (which is right angled and right oriented)?
   • C++ Program to print right angled pyramid of numbers. In this program, we are going to learn how to print numbered pyramids of numbers? This post contains solved program with output and explanation.
   • C++ program to keep calculate the sum of the digits of a number until the number is a single digit. In this program, we are going to implement logic to find sum of digits until the number is a single digits in C++ programming language.
   • How to skip some of the array elements in C++? Learn: How to skip some of the array elements using C++ program? Here, using an example - we going to understand the concept of skipping some of the elements in C++.

6. Videos

   • 

     1:19:10

     youtube.com

     Practice Problems on Inheritance | L:22 | C++ Programming | Ravindrababu Ravula | Jay

     Feb 21, 2021

     7.8K Views

   • 

     15:56

     youtube.com

     C++ Full Course | Inheritance with example | Practice Problem | Lesson 10 part 6

     Sep 11, 2023

     33 Views

   • 

     25:33

     youtube.com

     C++ Inheritance Tutorial | Introduction To Inheritance In C++ Programming With Example | Simplilearn

     Sep 12, 2021

     37.8K Views

   View all

7. www.geeksforgeeks.org › inheritance-in-cInheritance in C++ - GeeksforGeeks

   www.geeksforgeeks.org › inheritance-in-c

   • Cached

   Jan 8, 2024 · Last Updated : 08 Jan, 2024. The capability of a class to derive properties and characteristics from another class is called Inheritance. Inheritance is one of the most important features of Object-Oriented Programming. Inheritance is a feature or a process in which, new classes are created from the existing classes.

8. www.sanfoundry.com › cplusplus-programmingInheritance - C++ Programming Questions and Answers - Sanfoundry

   www.sanfoundry.com › cplusplus-programming

   • Cached

   This set of C++ Programming Multiple Choice Questions & Answers (MCQs) focuses on “Inheritance – 1”. 1. What is Inheritance in C++? a) Wrapping of data into a single class b) Deriving new classes from existing classes c) Overloading of classes d) Classes with same names View Answer

9. www.programiz.com › cpp-programming › inheritanceC++ Inheritance - Programiz

   www.programiz.com › cpp-programming › inheritance

   • Cached

   Example 1: Simple Example of C++ Inheritance. // C++ program to demonstrate inheritance #include <iostream> using namespace std; // base class class Animal { public: void eat() { cout << "I can eat!" << endl; } void sleep() { cout << "I can sleep!" << endl; } }; // derived class class Dog : public Animal { . public:

10. www.geeksforgeeks.org › problems › c-inheritanceC++ Inheritance introduction | Practice | GeeksforGeeks

    www.geeksforgeeks.org › problems › c-inheritance

    • Cached

    Create two classes: Cuboid The Cuboid class should have three data fields- length, width and height of int types. The class should have display()&nbsp;method, to print the length,&nbsp;width&nbsp;and&nbsp;height&nbsp;of