Samuel contributions

80 questions

Hard

3 votes282 runs0 comment

Which statement concerning constructors is false ?

Back-end developer

constructors

attributes

at Mar 28, 2022

Medium

1 vote232 runs1 comment

The operator + has been defined for Complexe objects thanks to an intern overloading.

Back-end developer

operators

overloading

at Mar 5, 2024

Expert

1 vote213 runs0 comment

Write a C++ program that uses static variables.

Back-end developer

static

constructor

destructor

at Mar 28, 2022

Hard

1 vote147 runs0 comment

Write a C++ class with a constructor that takes two arguments.

Back-end developer

constructor

inheritance

at Mar 28, 2022

Medium

1 vote20 runs0 comment

What does the following code return ? int main() { int i = 1; int& j(i); i = 4; cout << j << endl; j = 6; cout << i << endl; return 0; }

Back-end developer

references

pointers

at Feb 27, 2023

Hard

1 vote15 runs0 comment

Write a C++ program that displays 111111.

Back-end developer

vector

references

at Feb 13, 2023

Samuel

Medium

0 vote397 runs0 comment

What does this code return ? public class A { public void talk() { echo "Hello my name is A" } } public class B extends A { public void talk() { echo "Hello my name is B" } } B b = new B(); A a = b; B b2 = (B) a; b2.talk();

IT Architect

OOP

inheritance

polymorphism

at Mar 28, 2022

Easy

0 vote398 runs0 comment

Which Design Pattern should I use if I want an object to be notified when another kind of object state changed?

IT Architect

OOP

design pattern

observer

at Mar 28, 2022

Easy

0 vote398 runs0 comment

Encapsulation rule in Object-Oriented Programming

IT Architect

OOP

encapsulation

classes

at Mar 28, 2022

Medium

0 vote430 runs0 comment

How to instantiate objects with a type which is derivated from an abstract type in OOP

IT Architect

OOP

design pattern

abstract

at Mar 28, 2022

Medium

1 vote117 runs0 comment

How to add two vectors in a class Vector2D in OOP

IT Architect

OOP

operator overloading

classes

at Mar 28, 2022

Medium

1 vote394 runs0 comment

Overloading an operator in OOP

IT Architect

OOP

operators

classes

at Mar 28, 2022

Easy

1 vote396 runs0 comment

How to apply the principle of encapsulation in OOP?

IT Architect

OOP

encapsulation

visibility

at Mar 28, 2022

Expert

1 vote416 runs0 comment

What does the following code return ? public class A { public void talk() { echo "I am A" } public secretTalk() { this.talk() } } public class B extends A { private void talk() { echo "I am B" } public secretTalk() { this.talk() } } A b = new B() b.talk() b.secretTalk() Answer : "I am A" "I am B"

IT Architect

OOP

inheritance

overriding

at Mar 28, 2022

Medium

1 vote433 runs0 comment

Explain the difference between overriding and overloading in OOP.

IT Architect

OOP

methods

inheritance

at Mar 28, 2022

Medium

1 vote458 runs1 comment

In this code, the class B extends the class A. The class B overrides the method talk() from the class A. The object b is an instance of the class B. The object a is an instance of the class A. The object a is assigned to the object b. The object a calls the method talk(). The method talk() from the class B is called.

IT Architect

OOP

inheritance

polymorphism

at Mar 28, 2023

Medium

4 votes470 runs1 comment

When can you do a+b in OOP ?

IT Architect

OOP

operator overloading

classes

at Mar 28, 2022

Easy

4 votes492 runs0 comment

Can a class implements several interfaces ?

IT Architect

OOP

interfaces

inheritance

at Mar 28, 2022

Hard

7 votes483 runs0 comment

Overrided method visibility must be the same or less restrictive than the inherited method.

IT Architect

OOP

visibility

inheritance

at Mar 28, 2022

Easy

7 votes501 runs0 comment

Inheritance in OOP.

IT Architect

OOP

inheritance

methods

at Mar 28, 2022

Samuel