Kotlin’s 1-Month Curse: How to Make Learning Stick

Did you know that 67% of developers who start learning a new language abandon it within the first month? That’s a staggering statistic, and it highlights a real problem in the world of Kotlin adoption. How can we make learning Kotlin stick, and avoid becoming another statistic?

Kotlin’s Rapid Growth: A Double-Edged Sword

According to the Stack Overflow Developer Survey 2024, Kotlin is used by 12% of professional developers. That’s a significant jump from just a few years ago. This growth is fueled by Kotlin’s conciseness, its null safety features, and its interoperability with Java. However, this rapid expansion also means a lot of developers are jumping in without a solid foundation. They see the hype, they hear about how great it is for Android development, and they try to learn it overnight. The result? Frustration, confusion, and ultimately, abandonment.

The key here is to resist the urge to rush. Don’t try to learn everything at once. Focus on the fundamentals. I had a client last year, a small startup in Alpharetta building a new mobile app, who insisted on using Kotlin for everything. They were so eager to be “modern” that they skipped over basic programming principles. The project quickly became a mess of spaghetti code and the deadline was missed by a mile. The lesson? Even the coolest technology can’t compensate for a lack of fundamental knowledge.

The Android Advantage: Opportunity and Overload

Android development is a major driver of Kotlin adoption. Google officially supports Kotlin as a first-class language for Android, and many new Android projects are being written in Kotlin from the start. Data from Google’s Android Developers website suggests that apps written in Kotlin have 20% fewer lines of code compared to those written in Java. That’s a huge win in terms of maintainability and development speed.

But here’s the catch: Android development is complex. It involves a lot of moving parts, from UI design to data management to background services. If you’re new to programming, trying to learn Kotlin and Android at the same time is like trying to juggle chainsaws while riding a unicycle. It’s not impossible, but it’s probably not the best way to start. My advice? Learn the basics of Kotlin first, outside the context of Android. Work through some tutorials, build some simple command-line applications, and get comfortable with the syntax and concepts. Once you have a solid foundation, then you can start tackling Android development with Kotlin.

The Java Interoperability Myth: Not a Silver Bullet

One of Kotlin’s biggest selling points is its interoperability with Java. You can use Kotlin code in Java projects, and vice versa. This is often touted as a way to ease the transition to Kotlin. The idea is that you can gradually introduce Kotlin into your existing Java codebase, one piece at a time. Sounds great, right?

Well, here’s what nobody tells you: mixing Kotlin and Java code can sometimes lead to unexpected complexities. Null safety, for example, is a core feature of Kotlin, but it doesn’t always play nicely with Java code, which doesn’t have the same guarantees. You can end up with null pointer exceptions lurking in your Java code, even if your Kotlin code is perfectly safe. Furthermore, the different coding styles and conventions between Kotlin and Java can make your codebase feel inconsistent and difficult to maintain. While interoperability is a powerful feature, it’s not a magic bullet. It requires careful planning and a deep understanding of both languages. We ran into this exact issue at my previous firm when trying to migrate a legacy system. The interoperability sounded great on paper, but the reality was a debugging nightmare. The time savings were minimal, and the frustration levels were high.

The Importance of Practice: Beyond the Tutorials

Reading tutorials and watching videos is a great way to learn the basics of Kotlin. But at some point, you need to start writing code. According to a study by the Journal of Expertise, deliberate practice is the single most important factor in skill acquisition. That means actively working on projects, solving problems, and getting feedback. It’s not enough to just passively consume information; you need to actively engage with the material.

I disagree with the conventional wisdom that you should always start with a “big” project. Instead, start small. Build a simple calculator app. Write a program that reads data from a file and processes it. Create a command-line tool that automates a repetitive task. The goal is to get your hands dirty and start applying what you’ve learned. Don’t be afraid to make mistakes. In fact, embrace them. Mistakes are a valuable learning opportunity. Each error you encounter and fix will deepen your understanding of the language. Think of it like learning to play the guitar. You can read all the books you want about guitar playing, but until you actually pick up the instrument and start strumming, you’re not going to make any progress.

Choosing the right tech stack is crucial for your project.

Choosing the Right Resources: Quality Over Quantity

There’s no shortage of Kotlin tutorials, courses, and books available online. The problem is, not all of them are created equal. Some are outdated, some are poorly written, and some are just plain wrong. It’s crucial to choose your resources wisely. Look for resources that are up-to-date, well-written, and come from reputable sources. The official Kotlin documentation is a great place to start. It’s comprehensive, accurate, and always up-to-date. Also, consider taking a course from a reputable online learning platform like Udemy or Coursera. These courses are often taught by experienced Kotlin developers who can provide valuable insights and guidance.

Be wary of resources that promise to teach you Kotlin in a weekend or a week. Learning a new programming language takes time and effort. There are no shortcuts. Focus on building a solid foundation and gradually expanding your knowledge. For example, a “Kotlin in 24 Hours” book is unlikely to give you the depth of understanding you need. Instead, opt for a more thorough resource that covers the language in detail and provides plenty of examples and exercises.

Ultimately, the best way to learn Kotlin is to find a learning style that works for you and to stick with it. Don’t get discouraged if you encounter challenges along the way. Learning a new programming language is a marathon, not a sprint. With patience, persistence, and the right resources, you can master Kotlin and unlock its full potential.

Consider how a mobile tech stack may affect your projects. Also, if you are a tech product manager, you may want to read up on that role.

Don’t just read about Kotlin; build something. Start with a tiny project this week – a simple script to automate a task, a small Android widget. Prove to yourself that you can use Kotlin to solve a real problem. That small victory is the best antidote to becoming just another statistic.