63 interview questions for developers (2024)

13 votes1498 runs0 comment

Eric Hostaleryat Dec 3, 2021

8 votes611 runs0 comment

Samuelat Mar 28, 2022

8 votes589 runs0 comment

Samuelat Mar 28, 2022

8 votes515 runs0 comment

design pattern

7 votes1380 runs0 comment

Eric Hostaleryat Dec 3, 2021

5 votes601 runs0 comment

Samuelat Mar 28, 2022

4 votes1417 runs0 comment

Eric Hostaleryat Dec 3, 2021

4 votes572 runs1 comment

operator overloading

Samuelat Mar 28, 2022

3 votes1390 runs0 comment

Eric Hostaleryat Mar 13, 2023

3 votes1369 runs0 comment

Eric Hostaleryat Dec 3, 2021

3 votes1365 runs0 comment

Eric Hostaleryat Dec 3, 2021

3 votes1362 runs1 comment

Eric Hostaleryat Dec 3, 2021

3 votes1327 runs1 comment

2 votes1449 runs0 comment

design pattern

Eric Hostaleryat Sep 19, 2022

2 votes1397 runs0 comment

Eric Hostaleryat Dec 3, 2021

2 votes513 runs0 comment

Samuelat Mar 28, 2022

2 votes478 runs0 comment

Samuelat Mar 28, 2022

2 votes213 runs0 comment

polymorphism

encapsulation

Monemat Nov 3, 2023

1 vote1398 runs1 comment

Eric Hostaleryat Dec 3, 2021

1 vote1373 runs0 comment

Eric Hostaleryat Dec 3, 2021

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 ?

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);

When can you do a+b in OOP ?

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

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);

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

Can an interface inherit from another interface?

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);

Explain the difference between overriding and overloading in OOP.

Overloading an operator in OOP

Inheritance, polymorphism and encapsulation

What is the default value of a field in a class in Java?

What are the public methods of the class `Person`?