Kotlin is one of the open-source programming languages with functional and object-oriented features. JetBrains developed Kotlin, and you can find it as a streamlined Java language. Nowadays, Android developers use Kotlin for their app development. Thus, to become one of the successful app developers, you can learn Kotlin from free or paid courses.
- The Joy of Kotlin (Paid) – It is another paid option for those who are looking for a professional guide to learn Kotlin. You will find instructions on writing a safe, comprehensive, and easily maintainable program with the language, Kotlin. The course covers optional data, error management, and other topics.
- Learn Kotlin with Keddit – We have chosen another free course that covers topics on Data Classes, Properties and Fields, Lambda, and Higher-order Functions. However, you must have some knowledge of Java to choose this course. The tutorial relies on the use of different libraries, including Retrofit 2.0, RecyclerView, Dagger 2, and Picasso.
- Taking Advantage of Kotlin – It is a free Kotlin tutorial, helping you to avoid boilerplate code and Android development pitfalls. Moreover, you will know the way of using Kotlin converter, Android Studio’s Java, and Kotlin syntax. The tutorial also includes instructions on using library functions for better Java functions.
- Android Kotlin Developer Course– Without any programming skills, you may join this paid online course. You can learn the Android app and game development. Moreover, the course guides you in designing the app with Shape, Color, Style, and Menu. You can deal with New Firebase from Web services and Google.
- Kotlin Crash Course for Programmers – We have included it as one of the premium Kotlin courses for programmers. The course comprises 25 lessons and 20 quizzes. You will learn about data types, functions, loops, and variable declarations. The guides you on the way of writing Kotlin applications and scripts.
- Kotlin String
In Kotlin, the String class represents character strings. Access characters of a String Index access operator can be used. val str = "abCdEf" str //"C" Iterate through a String for...
- Kotlin Number
Some common use cases with number. Add leading zeros to a number val result = String.format("%05d", 2) // "00002" val result2 = "15".padStart(5, '0') // "00015" Convert number to String...