‫Hello my friends, and welcome back.
‫In this video, we're going to discuss the most important and frequently asked question in Android app
‫development Java or Kotlin.
‫Java has been a long standing and widely used language for Android app development.
‫It offers maturity.
‫Java has a well-established presence in Android ecosystem with numerous libraries, tools, and large
‫community of developers.
‫Java code compiles to byte code that is optimized for Java Virtual Machine JVM.
‫This can result in good app performance.
‫Java can be used for a wide range of Android application types for simple mobile apps to complex enterprise
‫level solutions.
‫Kotlin is a modern programming language that has gained significant popularity in the Android development
‫community.
‫It brings several advantages.
‫Kotlin is known for its concise and expressive syntax, reducing boilerplate code and making code more
‫readable.
‫Kotlin provides built in null safety features, helping to prevent common runtime crashes by catching
‫null pointer exceptions at compile time.
‫Kotlin introduces modern language features such as extension functions, lambda expressions, and coroutines,
‫improving developer productivity and code quality.
‫Here's a comparison of various language features between Java and Kotlin.
‫Java has a more verbose and ceremony heavy syntax.
‫It often requires more boilerplate code, especially for tasks like variable declaration getters, setters,
‫and anonymous classes.
‫Kotlin is known for its concise and expressive syntax.
‫It significantly reduces boilerplate code and makes the code more readable.
‫For example, in Kotlin, you don't need to declare getters and setters explicitly.
‫Java doesn't have built in null pointer safety features.
‫You can assign null to any reference, which can lead to null pointer exceptions during runtime.
‫Kotlin provides native null safety features.
‫You must explicitly declare whether a variable can be nullable or not, using the exclamation mark or
‫the question mark.
‫Operators.
‫This helps catch null pointer exceptions at compile time, reducing the risk of crashes.
‫Java introduced lambda expressions in Java eight, but the syntax can be a bit verbose.
‫Lambdas are often used with functional interfaces, interfaces with a single abstract method or anonymous
‫inner classes.
‫Kotlin has more concise lambda expressions.
‫It supports lambda expressions and higher order functions, making it easier to work with functional
‫programming constructs.
‫Java doesn't have native support for coroutines.
‫Achieving a synchronous and non-blocking behavior often requires using libraries like Rxjava or implementing
‫complex callback mechanisms.
‫Kotlin has built in support for coroutines.
‫Coroutines provide a more straightforward way to write a synchronous, non-blocking code, making it
‫easier to handle tasks like network requests and concurrent operations.
‫In summary, Kotlin generally offers more modern and concise language features compared to Java.
‫It excels in null safety extension functions, lambda expressions, and coroutines, making it a preferred
‫choice for many Android developers.
‫However, Java still has a significant presence in the Android ecosystem, and it's worth considering
‫the specific requirements and constraints of your project when choosing between the two languages.
‫Also, choosing between Java or Kotlin depends on your personal preferences.
‫My advice to you is to start with Java, then shifting to Kotlin in order to understand all concepts
‫in very deep details.
‫So my last advice to you is to start with Java, then shift to.