100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Revature Interview UPDATED Exam Questions and CORRECT Answers CA$11.68
Add to cart
Quickly navigate to
Preview
  2.  
  3. Revature
  4.  
  5. Revature

Exam (elaborations)

Revature Interview UPDATED Exam Questions and CORRECT Answers

1 review
 1 purchase
  • Course
  • Revature
  • Institution
  • Revature

Revature Interview UPDATED Exam Questions and CORRECT Answers Object-oriented programming (OOP) - Correct ANSWER- a programming language model organized around objects that have data and methods that form the object. It's an instance of a class. four main concepts: 1. Encapsulation 2. Abs...

[Show more]

Preview 2 out of 9  pages

Document information

  • June 14, 2024
  • 9
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • revature interview
  • revature

Written for

  • Revature
  • Revature

1  review

review-writer-avatar

By: leomaximo90 • 7 months ago

reply-writer-avatar

By: MGRADES • 4 months ago

❤️ Thank you

Seller

avatar-seller
MGRADES

Reviews received

Content preview

Revature Interview UPDATED Exam Questions and CORRECT Answers Object -oriented programming (OOP) - Correct ANSWER - a programming language model organized around objects that have data and methods that form the object. It's an instance of a class. four main concepts: 1. Encapsulation 2. Abstraction 3. Inheritance 4. Polymorphism. Variables - Correct ANSWER - A structure for temporarily storing data in your computers memory 1. primitive variables - data types like integers, decimals, and alphanumeric characters 2. reference variables - store memory addresses where objects are located. use a class (name) as their type and can only point to objects that are instances of the class that is their type Arrays - Correct ANSWER - A collection of primitive values or object reference organized with an index. A specific amount of memory is reserved for an array based on the size and data type Instance variable - Correct ANSWER - declared in the class scope { } denote a change in scope What is DBMS? - Correct ANSWER - Database Management System What is RDBMS? - Correct ANSWER - Rational Database Management System - stores data into tables with columns and rows Ex. SQL Server class - Correct ANSWER - a blueprint or prototype from which objects are created. a representation of a type of object. Example: class called Vehicle describes the minimum things that a vehicle is. Inheritance - Correct ANSWER - Inheritance allows a class to use the properties and methods of another class. Allows parent/child relationship. Example: car and truck inherit functions of vehicle but car is not truck or vice versa. A class inherits fields and methods from all its superclasses, whether direct or indirect. A subclass can override methods that it inherits, or it can hide fields or methods that it inherits. Interface - Correct ANSWER - a description of the actions that an object can do. an Interface is a description of all functions that an object must have in order to be an "X". http://images.slideplayer.com/14/4328130/slides/slide_3.jpg Why use an interface? - Correct ANSWER - main use is polymorphism, or the ability to perform the same operation on a number of different objects. Package - Correct ANSWER - a namespace that organizes a set of related classes and interfaces. Used to keep things organized by placing related classes and interfaces into packages. Used in Java in order to prevent naming conflicts. How to create and use objects - Correct ANSWER - You can declare, instantiate using new keyword, or initialize by using new and calling constructor You can call object fields using the dot method and calling its functions Encapsulation - Correct ANSWER - the principle of information hiding and wrapping code together into a single unit. data is not accessed directly API - Correct ANSWER - Application Programming Interface - Contains the complete listing for all packages, interfaces, classes, fields, and methods supplied by the Java SE platform Association - Correct ANSWER - a relationship between two classes. there is no owner between objects. For example, a teacher *has -a* or *teaches* a student. There is no ownership between the teacher and the student Aggregation - Correct ANSWER - a weak type of Association with partial ownership. For an Aggregation relationship, we use the term *uses*. For example, a person has an address. if you take away the address, nothing really changes the person. Composition - Correct ANSWER - a strong type of Association with full ownership. This is strong compared to the weak Aggregation. For a Composition relationship, we use the term *owns*. For example, a car has an engine. if you take away that engine the car doesn't function anymore. Abstraction - Correct ANSWER - its a concept that places emphasis on what an object is or does rather than how it works. Polymorphism - Correct ANSWER - The ability of different objects to respond differently to identical messages. Ex: Triangle and Rectangles are Shape objects. Shapes are drawn but each are drawn in different ways. non-static field (instance variable) - Correct ANSWER - Non-static fields are known as instance variables because their values are unique to each instance of a class. Ex: currentSpeed of one bicycle is independent from the currentSpeed of another

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller MGRADES. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.68. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

68175 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
CA$11.68  1x  sold
  • (1)
Add to cart
Added