education

Collaborative learning, when learners work together on a shared assignment, makes for a highly-engaged process. Through hearing diverse thoughts, articulating arguments, and brainstorming, learners tend to achieve more complete knowledge and skills as a group than they could individually. Code With Me is a built-in feature of IntelliJ-based IDEs for collaborative programming that enables developers to work smoothly on the same code base in real time, even when they’re in different locations. They can fix bugs, simultaneously edit the code, navigate and review code, and mentor and help each

Join us on Thursday, August 11, 2022, 5:00 pm – 6:00 pm UTC, for our free live webinar, Kotlin and Code With Me: Tips for Collaborative Programming, Teaching, and Learning.

We invite you to join us for the livestream Kotlin Basics Track Tour With a JetBrains Academy Expert, featuring Dmitry Sitnikov, JetBrains Academy Expert and consulting software engineer. The livestream will start at 3:00 PM UTC on Wednesday, February 16.  Use these links to save the date in your calendar: Outlook Calendar or iCal: Add to CalendarGoogle Calendar: Add to Calendar In this livestream, Dmitry will cover the following topics: How a project-based, practice-oriented approach helps when learning programming.Kotlin tracks on JetBrains Academy: Kotlin Basics, Kotlin

“Always bet on the future. If you’re not willing to, it’s hard to enjoy a life in technology.”Geoffrey Challen On November 23, we held a ‘Teaching Introductory Computer Science in Kotlin’ webinar, featuring Geoffrey Challen, Teaching Associate Professor at the University of Illinois at Urbana-Champaign. He is the lead instructor for a course, which is now the largest introductory computer science course to offer Kotlin as a language option, with an impressive 1300 students. SlidesCS1 in Kotlin essayCourse page According to Geoffrey, Kotlin is an ideal choice for a first programmin

UPD: The recording is now available on YouTube.  We invite you to join us for a live webinar, ‘Teaching Introductory Computer Science in Kotlin’, featuring Geoffrey Challen, Teaching Associate Professor at the University of Illinois. Tuesday, November 23, at 4:00 PM UTC. (more…)

This post continues our “Idiomatic Kotlin” series and provides the solution for the Advent of Code Day 9* challenge. While solving it, we’ll look into different ways to manipulate lists in Kotlin. Day 9. Encoding error, part I We need to attack a weakness in data encrypted with the eXchange-Masking Addition System (XMAS)! The data is a list of numbers, and we need to find the first number in the list (starting from the 26th) that is not the sum of any 2 of the 25 numbers before it. We’ll call the number valid if it can be presented as a sum of two numbers from the previous sublist, a

Today in “Idiomatic Kotlin”, we’re solving another Advent of Code challenge. We will be simulating, diagnosing, and fixing a small, made up game console! If you have ever wanted to implement your own virtual machine or emulator for an existing system like a game console or a retro computing device, you’ll find this issue particularly interesting! As usual, a number of Kotlin features will help us achieve that goal, like sealed classes, sequences, and immutability. Understanding the challenge The story of Advent of Code 2020, Day 8 goes like this: A passenger on our flight hands

Let's describe our task briefly. We are airport luggage throwers handlers, and as often happens, there are some new regulations. This time, they stipulate that all bags be color-coded and contain a specific number of color-coded bags inside them. Weird, right? Well, rules are rules, so we must comply. Let's see what they look like: Our mission is to find how many bags eventually contain at least one shiny gold bag. It would be hard to find potential container bags for our shiny gold bag by hand, but programming will help us! To solve this task, we will implement a couple of search al

Grouping and counting the characters in strings and collections is a very typical task given in coding interviews. Usually, the solutions for such tasks are quite simple. In this blog post, we learn about a few useful functions in Kotlin that make set operations really simple. The task: custom customs The task for the Advent of Code Day 6 challenge requires us to count the answers on customs declaration forms. We are provided with the results of the filled-in forms for different groups of people. Below is the original sample provided in the AoC Day 6 challenge: abc a b c ab ac

Let’s continue our journey of understanding what “idiomatic Kotlin” means and solve one more puzzle from the Advent of Code challenge. The puzzles are independent of each other, so you don’t need to check any of the previous ones we’ve already covered. Simply read through the following solution or watch the video. We hope you learn something new! (more…)

Today in “Idiomatic Kotlin”, we’re looking at day 4 of the Advent of Code 2020 challenges, in which we tackle a problem that feels as old as programming itself: input sanitization and validation. (more…)

Today we have great news for those of you who are just starting out on your programming journey with Kotlin or who want to develop new programming skills. JetBrains Academy recently released a new Kotlin Basics track! It helps you get to grasps with all the Kotlin programming language essentials as you build fully functional applications. As the company behind Kotlin, we’re providing individual learners with free access to the track! All you need to do is to register free at JetBrains Academy, choose the Kotlin Basics track, select a project, and start learning. (more…)