63 interview questions for developers (2024)

14 votes1523 runs0 comment

Eric Hostaleryat Dec 3, 2021

9 votes635 runs0 comment

Samuelat Mar 28, 2022

9 votes612 runs0 comment

Samuelat Mar 28, 2022

9 votes539 runs0 comment

design pattern

8 votes1404 runs0 comment

Eric Hostaleryat Dec 3, 2021

5 votes625 runs0 comment

Samuelat Mar 28, 2022

4 votes1473 runs0 comment

design pattern

Eric Hostaleryat Sep 19, 2022

4 votes1440 runs0 comment

Eric Hostaleryat Dec 3, 2021

4 votes1392 runs

Eric Hostaleryat Dec 3, 2021

4 votes1389 runs0 comment

Eric Hostaleryat Dec 3, 2021

4 votes1350 runs1 comment

4 votes594 runs1 comment

operator overloading

Samuelat Mar 28, 2022

3 votes1420 runs0 comment

Eric Hostaleryat Dec 3, 2021

3 votes1413 runs0 comment

Eric Hostaleryat Mar 13, 2023

3 votes1386 runs1 comment

Eric Hostaleryat Dec 3, 2021

3 votes527 runs0 comment

Samuelat Mar 28, 2022

3 votes237 runs0 comment

polymorphism

encapsulation

Monemat Nov 3, 2023

2 votes506 runs0 comment

encapsulation

Samuelat Mar 28, 2022

2 votes496 runs0 comment

Samuelat Mar 28, 2022

2 votes418 runs

encapsulation

63 interview questionsfor developers (2024)

Test your developer skills before an interview with 63 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

63 interview questionsfor developers (2024)

Test your developer skills before an interview with 63 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);

Inheritance in OOP.

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

You need to develop a class for which there should be only one instance throughout your application. Which design pattern should you use for this?

Can we extend an abstract class in Java?

Can a class implements several interfaces ?

Which design pattern allows to dynamically add responsibilities to an object?

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);

Can an interface inherit from another interface?

When can you do a+b in OOP ?

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);

Implement the interface IEmailFormatter for the classes Person, Company, and ListOfPerson, which has a method GetEmailContent()

Implement the registration method on class A in a virtual way,Override the registration method on classes A1 and A2 when implementing these classes

Explain the difference between overriding and overloading in OOP.

Inheritance, polymorphism and encapsulation

Encapsulation rule in Object-Oriented Programming

Overloading an operator in OOP

Hiding complexity can be termed as Encapsulation