Launching soon! The AI-powered interview tool – See it in action
Launching soon! AI-powered interview tool – View demo
iOS Developer - Calculate Area of a Rectangle in Objective-C Test | Pre-employment assessment - Testlify
Back to Test Library

iOS Developer - Calculate Area of a Rectangle in Objective-C Test

Overview of iOS Developer - Calculate Area of a Rectangle in Objective-C Test

Calculate the area of a rectangle in objective-c: implement objective-c code to calculate the area of a rectangle given its width and height.

Skills measured

  • Swift Programming Language
  • Objective-C
  • Debugging and Performance Optimization

Available in



Coding Test


10 Mins





Use of iOS Developer - Calculate Area of a Rectangle in Objective-C test

The "Calculate Area of a Rectangle in Objective-C" coding test is designed for iOS Developers. The task involves implementing Objective-C code to calculate the area of a rectangle, given its width and height. This test evaluates candidates' proficiency in Objective-C programming, basic mathematical calculations, and their ability to translate requirements into code. By successfully completing the task, developers can showcase their skills in Objective-C development and problem-solving. This coding test is particularly relevant for iOS Developers looking to demonstrate their abilities in Objective-C and their understanding of fundamental programming concepts.

Relevant for

  • iOS Developer
  • iOS Software Engineers
  • iOS App Architect
  • iOS Application Developer
  • Mobile App Developer (iOS)
  • Objective-C Developer

Hire the best,
every time,


Customer satisfaction

Testlify helps you identify the best talent from anywhere in the world, with a seamless experience that candidates and hiring teams love every step of the way.


Swift Programming Language

In the iOS Developer - Calculate Area of a Rectangle in Objective-C course, you will learn how to calculate the area of a rectangle using Swift programming language. This skill is important as it helps developers understand the basics of Swift syntax, data types, variables, and mathematical operations. By mastering this skill, developers can apply the knowledge to more complex calculations and develop efficient and functional iOS applications. Understanding Swift programming language is essential for iOS developers to create robust and high-quality apps for Apple devices.



In the iOS Developer - Calculate Area of a Rectangle in Objective-C course, students will learn how to use Objective-C to calculate the area of a rectangle. This skill is important for iOS developers as it helps them understand the fundamentals of programming in Objective-C, a key language for iOS development. By mastering this skill, developers will be able to perform basic calculations and manipulate data efficiently, which is essential for creating functional and user-friendly iOS applications. Understanding how to calculate the area of a rectangle also lays a strong foundation for more complex math operations and algorithms in iOS development.


Debugging and Performance Optimization

Debugging and Performance Optimization are essential skills for iOS developers to master in order to create efficient and error-free applications. Debugging involves identifying and fixing any issues or bugs in the code to ensure the app functions as intended. Performance optimization focuses on making the app run smoothly and efficiently by improving its speed and reducing resource consumption. These skills are crucial for delivering a high-quality user experience and ensuring the app performs optimally on various devices. By honing these skills, developers can create reliable and high-performing applications that meet user expectations.

The iOS Developer - Calculate Area of a Rectangle in Objective-C test is created by a subject-matter expert

Testlify’s skill tests are designed by experienced SMEs (subject matter experts). We evaluate these experts based on specific metrics such as expertise, capability, and their market reputation. Prior to being published, each skill test is peer-reviewed by other experts and then calibrated based on insights derived from a significant number of test-takers who are well-versed in that skill area. Our inherent feedback systems and built-in algorithms enable our SMEs to refine our tests continually.

subject matter expert

Why choose Testlify

Elevate your recruitment process with Testlify, the finest talent assessment tool. With a diverse test library boasting 1500+ tests, and features such as custom questions, typing test, live coding challenges, Google Suite questions, and psychometric tests, finding the perfect candidate is effortless. Enjoy seamless ATS integrations, white-label features, and multilingual support, all in one platform. Simplify candidate skill evaluation and make informed hiring decisions with Testlify.

Frequently Asked Questions (FAQs)

Want to know more about Testlify? Here are answers to the most commonly asked questions about our company

Yes, Testlify offers a free trial for you to try out our platform and get a hands-on experience of our talent assessment tests. Sign up for our free trial and see how our platform can simplify your recruitment process.

To select the tests you want from the Test Library, go to the Test Library page and browse tests by categories like role-specific tests, Language tests, programming tests, software skills tests, cognitive ability tests, situational judgment tests, and more. You can also search for specific tests by name.

Ready-to-go tests are pre-built assessments that are ready for immediate use, without the need for customization. Testlify offers a wide range of ready-to-go tests across different categories like Language tests (22 tests), programming tests (57 tests), software skills tests (101 tests), cognitive ability tests (245 tests), situational judgment tests (12 tests), and more.

Yes, Testlify offers seamless integration with many popular Applicant Tracking Systems (ATS). We have integrations with ATS platforms such as Lever, BambooHR, Greenhouse, JazzHR, and more. If you have a specific ATS that you would like to integrate with Testlify, please contact our support team for more information.

Testlify is a web-based platform, so all you need is a computer or mobile device with a stable internet connection and a web browser. For optimal performance, we recommend using the latest version of the web browser you’re using. Testlify’s tests are designed to be accessible and user-friendly, with clear instructions and intuitive interfaces.

Yes, our tests are created by industry subject matter experts and go through an extensive QA process by I/O psychologists and industry experts to ensure that the tests have good reliability and validity and provide accurate results.

Hire with Facts, not Fiction.

Resumes don’t tell you everything! Testlify gives you the insights you need to hire the right people with skills assessments that are accurate, automated, and unbiased.

©2024 Testlify All Rights Reserved

Please enable JavaScript in your browser to complete this form.


[fluentform id=”23″]

Get 40% off on your first year’s billing!

Hurry and make the most of this special offer before it expires.

New customers only.

[fluentform id=”21″]

Test library request

These are upcoming tests. If you wish to prioritize this test request, we can curate it for you at an additional cost.

Please enable JavaScript in your browser to complete this form.
No settings found for the grid #1.