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James Cutajar

This course has been designed to help you pass your next coding interview. It focuses on puzzles from Codility's training lessons, so if you have an online coding test coming up, this course is perfect for you.

The key to passing coding interviews is to practice as much as possible by solving various types of coding puzzles. In doing so you sharpen your problem solving skills and eventually you will start to see patterns amongst the different coding solutions. You also increase your chances of being asked a problem you’ve already solved.

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This course has been designed to help you pass your next coding interview. It focuses on puzzles from Codility's training lessons, so if you have an online coding test coming up, this course is perfect for you.

The key to passing coding interviews is to practice as much as possible by solving various types of coding puzzles. In doing so you sharpen your problem solving skills and eventually you will start to see patterns amongst the different coding solutions. You also increase your chances of being asked a problem you’ve already solved.

In this course you’ll get to practice many of these coding puzzles. In every section we introduce the topic, explain the problem and later provide you with a few hints that help solve the puzzle. In the end we arrive at the solution together.

Along the way you'll learn how to ride a motorbike, surf, scuba dive and fly an aeroplane. *

Join me on this course, and let’s get you to pass this interview.

*Not really, however this course is pretty fun regardless.

All code in this course can be found on github, username/project: cutajarj/CodilityInJava

Enroll now

What's inside

Learning objectives

  • Experience solving many of codility's coding interview puzzles, with problem descriptions, hints and solutions
  • Learn common problem solving tips ideal for coding interviews
  • Have a greater chance of passing the coding interview with codility, hackerrank and others
  • Have a better chance of doing well in a face to face or phone coding interview

Syllabus

Introduction
Make most of this course
Useful links and resources
Time Complexity
Read more

Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Explores puzzle solving, which is a must-have skill to excel in coding interviews
Taught by James Cutajar, who is an expert in coding interviews
Provides hands-on practice through a wide range of coding puzzles from Codility's training lessons
Suitable for preparing for coding interviews by companies like Codility, Hackerrank, and others

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Reviews summary

Ace java coding interviews with codility insights

According to students, this course is a highly effective resource for mastering Java coding interview challenges, particularly those from Codility. Learners consistently praise the clear and concise explanations of complex problems, often highlighting the detailed code walkthroughs and step-by-step solutions. The course's structure, which includes hints before solutions, is frequently noted as a significant aid for developing problem-solving skills. While the course is largely positive for interview preparation, some suggest it's best for those with a foundational understanding of data structures and algorithms.
Benefits those with existing DSA knowledge, not absolute beginners.
"It's great for refreshing concepts, but a beginner might find some topics challenging without prior DSA."
"I recommend having a basic understanding of data structures and algorithms before diving into this course."
"While excellent, I felt I benefited more having already had some exposure to algorithm complexities."
Instructor actively updates content and responds to feedback.
"The instructor is very responsive to questions and has updated the course based on learner feedback."
"It's great to see an instructor who actively improves the course content over time."
"The course seems to be maintained well, which is a huge plus for staying current with interview trends."
Tailored to Codility, but applicable to other platforms.
"While geared towards Codility, the problem-solving techniques are highly transferable to HackerRank and LeetCode."
"The course covers specific Codility challenges, which was exactly what I needed for my upcoming test."
"It really dives deep into the types of problems you'd encounter on platforms like Codility."
Comprehensive analysis of code logic and implementation.
"The code walkthroughs are very thorough, explaining every line of code and the logic behind it."
"What I appreciated most were the detailed Java code implementations and the careful explanations."
"The walk-through of the code was super helpful to grasp the nuances and best practices for Java solutions."
Problems, hints, and solutions are presented with great clarity.
"The instructor explains each problem, provides useful hints, and then walks through the solution in detail."
"I loved how the instructor gave hints first, allowing me to try solving before seeing the full solution."
"The explanations for each puzzle are incredibly clear, making complex algorithms digestible and easy to understand."
Directly prepares learners for technical coding interviews.
"This course is absolutely fantastic to prepare for coding interviews. The solutions are clean and easy to follow."
"It helped me grasp the concepts required to pass the Codility tests and other coding interviews."
"I feel much more confident in tackling algorithmic problems for upcoming interviews thanks to this course."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Beat the Codility Coding Interview in Java with these activities:
Compile a collection of useful resources (e.g., websites, videos, articles) for coding interviews
Create a centralized repository of resources to support your preparation for coding interviews.
Browse courses on Coding Interviews
Show steps
  • Search for relevant websites, videos, and articles on coding interviews.
  • Organize the resources into a structured format (e.g., document, spreadsheet).
  • Include a brief description of each resource and how it can be helpful.
Brush up on your programming skills in the language used for your coding interview
Ensure your programming skills are sharp and ready for the coding interview by practicing regularly.
Show steps
  • Solve coding problems in the language used for your coding interview.
  • Review and practice coding concepts and techniques.
  • Build small programming projects to apply your skills.
Review basic data structures and algorithms
Strengthen your foundation by reviewing basic data structures and algorithms to prepare for coding interviews.
Browse courses on Data Structures
Show steps
  • Go over lecture notes or textbooks on data structures and algorithms.
  • Practice implementing basic data structures and algorithms in your preferred programming language.
  • Solve coding problems using the data structures and algorithms you've reviewed.
Six other activities
Expand to see all activities and additional details
Show all nine activities
Practice solving coding puzzles from Codility
Practice solving coding puzzles to improve your problem-solving skills and prepare for your coding interview.
Browse courses on Problem Solving
Show steps
  • Choose a puzzle from the Codility training lessons.
  • Read the puzzle description and understand the problem.
  • Attempt to solve the puzzle on your own.
  • Review the hints provided to guide your solution.
  • Check the solution provided to verify your answer.
Watch video tutorials on common coding interview topics
Gain additional insights and perspectives by watching video tutorials on common coding interview topics.
Browse courses on Coding Interviews
Show steps
  • Search for video tutorials on specific coding interview topics.
  • Watch the tutorials and take notes on key concepts.
  • Practice applying the techniques discussed in the tutorials.
  • Review your notes and practice regularly to reinforce your understanding.
Join a study group or participate in peer practice sessions
Collaborate with peers to discuss coding challenges, share strategies, and improve your problem-solving skills.
Browse courses on Coding Interviews
Show steps
  • Identify or form a study group or peer practice session.
  • Establish regular meeting times and create a structured agenda.
  • Discuss coding puzzles and practice solving them together.
  • Provide feedback and support to your peers.
Attend a coding interview preparation workshop
Gain valuable insights and guidance by attending a coding interview preparation workshop.
Browse courses on Coding Interviews
Show steps
  • Research and identify reputable coding interview preparation workshops.
  • Enroll in a workshop that aligns with your learning goals.
  • Actively participate in the workshop discussions and exercises.
  • Network with other participants and industry professionals.
Create a mock coding interview project (e.g., a sample coding challenge or a resume)
Demonstrate your coding skills and understanding of the interview process by creating a mock coding interview project.
Browse courses on Interview Preparation
Show steps
  • Choose a coding challenge or scenario that reflects real-world coding interview problems.
  • Develop a solution using appropriate data structures and algorithms.
  • Write a detailed explanation and documentation for your solution.
  • Review and refine your project based on feedback from potential reviewers.
Become a mentor for junior developers or students preparing for coding interviews
Strengthen your understanding of coding concepts and hone your communication skills by mentoring others.
Browse courses on Mentoring
Show steps
  • Connect with junior developers or students seeking mentorship opportunities.
  • Offer guidance and support on coding problems and interview preparation.
  • Provide constructive feedback and encourage their growth.
  • Foster a positive and supportive learning environment.

Career center

Learners who complete Beat the Codility Coding Interview in Java will develop knowledge and skills that may be useful to these careers:

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