Kotlin vs Java: Which is the best for Android Developers?

Kotlin vs Java: Which is the best for Android Developers?

In this article will help you spot the major differences between Kotlin vs Java

With the undisputable notoriety of Java as a programming language, Android was found wanting a cutting edge language to compete. Kotlin filled that hole no sooner it was declared as the official language for Android development.

I’ll be discussing the topics in following order:
What is Kotlin? What is its importance?What is Java?Parameters to compare Kotlin and JavaAdvantages of Kotlin over JavaAdvantages of Java over KotlinIs Kotlin going to replace Java?
Let’s begin!

Kotlin vs Java: What is Kotlin? What is its importance?

Kotlin is a statically typed programming language used for Java Virtual Machine (JVM) and JavaScript. The **Kotlin **project was born out of the aspiration for heightened productivity.

Kotlin is officially supported by **Google **for mobile development on Android. Ever since the release of Android Studio 3.0 in 2017, **Kotlin **was included as an alternative to the standard Java compiler.
It is also described as a general-purpose language.Kotlin introduces functional features to support Java interoperability.Helps to improve the coding experience in a way that is both practical and effective. The advantage with **Kotlin **is that you can compile it to a JavaScript and interoperate it with Java.It is supported by leading IDEs and is compatible for **Java **version 6 or 8.
Talking about the importance of this language, it is the most strongly supported **JVM language in the Android ecosystem, aside from Java. **With Kotlin you can write significantly less code when compared with Java. Fewer lines of code imply smaller file sizes for Kotlin, compared to Java equivalents.

Kotlin vs Java: What is Java?

Java is one of the oldest and easiest languages. It has been at the top for more than two decades and it is still a very popular programming language. It is an object-oriented programming language developed by Sun Microsystems, which is currently owned by Oracle.

Java does a whole lot more than just develop Android applications. So if you know your way around Java, you become a part of the bigger Java community and market, hence you have a lot more career opportunities.

This is a reputable programming language. It is mainly:
Concurrent where you can execute many statements instead of sequentially executing it.It is class-based and an object-oriented programming language.Independent programming language which follows the logic of “Write once, Run anywhere” i.e. the compiled code can run on all platforms which supports java.
In simple words, it is a computing platform where one can develop applications.

Now that you’ve got a gist of what is Kotlin and what is *Java, *let’s discuss the parameters to compare Kotlin & Java.

Kotlin vs Java: Parameters to compare Kotlin and Java

I will consider the following parameters to compare Kotlin vs Java.
Compilation timeNull safetyDevelopment speedLambda expressionsCommunity support### Compilation time

Kotlin shows slower compilation speed than Java in most of the cases.

Java’s compilation time is comparatively fast.

Null safety

Kotlin has inbuilt null safety. The not so famous* NullPointerException* is largely responsible for Android development mistakes. Android mainly relies on Null to represent the absence of a value, but it can easily destroy an application. Kotlin easily solves this problem by incorporating inherent null safety. Due to this addition, many developers are saved from writing extra code to work around the issue.

Java does not support Null safety as this was incorporated in recent updates.

Development speed

Kotlin’s code development speed is fast.

Java’s code development speed is comparatively faster.

Lambda expressions

Kotlin supports Lambda expressions which are essentially anonymous functions that can be treated as values. You can pass them as arguments to methods, return them, or do any other thing you would do with a normal object.

Java does not support lambda expressions.

Community support

Kotlin has limited learning resources as it is a small and new community.

Java is a vast programming language so the community circle is bigger than Kotlin.

Kotlin vs Java

Kotlin vs Java: Advantages of Kotlin over Java
Kotlin is interoperable.Concise.Easy learning curve.Provides an enhanced run-time performance.### Interoperability

Kotlin is interoperable with Java, which means that you can leverage all existing Java libraries, JVM, and the frameworks.

Concise

This helps in drastically reducing the amount of boilerplate code in your project.

Easy learning curve

The developers who know Java can easily learn Kotlin. Switching from Java to Kotlin does not have much overhead and adapting to it doesn’t possess any cost.

Provides an enhanced run-time performance

Performance during the run-time is high.

Now let us talk about the disadvantages of Kotlin.

Kotlin vs Java: Advantages of Java over Kotlin

In Kotlin, there is definitely a steep learning curve with Kotlin. Its highly concise syntax, while a great advantage, does require some learning up front.Kotlin shows a slower compilation speed than Java in most cases, even though it does beat Java in a few instances.The Kotlin community is still young and the learning resources are limited, so finding answers to problems can be a little difficult. However, with its growing popularity, the resources and community will expand in time.Since Kotlin is still new, finding experienced developers who can act as mentors for your team can be a little difficult. Everyone out there is still just learning and experiencing it.Some features of Android Studio like auto-complete and compilation tend to run slower in Kotlin in comparison to Java.## Kotlin vs Java: Is Kotlin going to replace Java?

Now, I’ll answer your most frequently asked question, is Kotlin going to replace Java? The answer is no. Kotlin has powerful features and so does Java. They both bind together to treat us with more improvised versions. So, yes, Java and Kotlin go hand in hand for android development.

This brings us to the end of this article where we have discussed the major differences between Kotlin and Java. Hope you are clear with all that has been shared with you in this tutorial.

What's New in Java 19: The end of Kotlin?

What's New in Java 19: The end of Kotlin?

What's New in Java 19: The end of Kotlin? Will Kotlin still have a place in the JVM language ecosystem in a few years? This tutorial will compare and contrast how the two languages approach solving the same problems of today's Java. We'll peer a few years into the future to see where both languages are headed and determine whether we still need a Kotlin

Kotlin's introduction was a breath of fresh air at a time when the pace of innovation in Java felt glacial. Since that time, development of Java has rapidly increased with an emphasis on fixing the pain points of the language and the efficiency of data representation in the VM. Will Kotlin still have a place in the JVM language ecosystem in a few years?

This talk will compare and contrast how the two languages approach solving the same problems of today's Java. We'll look at data-carrying types, asynchronous programming, nullability, and more. For some of these, we'll also see how one language sometimes influenced the other. Finally, we'll peer a few years into the future to see where both languages are headed and determine whether we still need a Kotlin (spoiler: we probably do!).

Choose Java 11 or the “other” one…Kotlin

Choose Java 11 or the “other” one…Kotlin

Most of the Java applications are written in Java 8 nowadays and people are looking around to upgrade to Java 11 or even migrating to Kotlin. Both are promoted as the new way to go and both have their own strengths and weaknesses. Upgrading to Java 11 might be an obvious next safe step to do. But what if you could migrate to Kotlin with the same effort?

Most of the Java applications are written in Java 8 nowadays and people are looking around to upgrade to Java 11 or even migrating to Kotlin. Both are promoted as the new way to go and both have their own strengths and weaknesses. Upgrading to Java 11 might be an obvious next safe step to do. But what if you could migrate to Kotlin with the same effort?
This would bring you additional advantages like: data classes, very concise list manipulations, extension functions, DSL's and even more to get your code more readable and maintainable.

Considering the Kotlin migration, the first questions that pop up are: What are the wise steps to take? And where to start?
Some experiences and thoughts answering these questions will be shared during this live coding session.

What will the audience learn from this talk?

  • how to migrate a Java service to Kotlin in concrete and independent steps
  • the difference in idioms between the two languages
  • how to use Kotlin in an idiomatic way Finally the audience will have a complete view on how to migrate successfully.

Java Fundamentals: Learn Java for absolute beginners |Simpliv

Java Fundamentals: Learn Java for absolute beginners |Simpliv

Java Fundamentals: Learn Java for absolute beginners

Description
This is the best course to learn to program in Java in Spanish from scratch and without any experience in this fabulous programming language. This is the first course where we will study the Fundamentals of Java, and we will take you step by step until you acquire the bases of the Java language and you can start to study more advanced Java topics.

The content is divided into perfectly structured levels, each level supported by the previous one, with the aim of adding Java knowledge incrementally and so you can focus on mastering the issues little by little and gradually. So ensure the success of your Java training.

We will also offer support for any doubts about the didactic material included in this Java Fundamentals course.

We manage a new teaching methodology that we have called Speed ​​Learning. This methodology consists of concise videos that go directly to the point to be studied, complemented by eBooks with explanations and step-by-step images (which you can print, or search for any text you need, or use for your offline study), since As we know we can not do text search within a video. In addition, our methodology includes perfectly structured and very didactic exercises that will allow you to accelerate your eLearning learning. No loss of time in videos where you have to watch the instructor codify an exercise, too much theory, little practice or anything like that. Our Speed ​​Learning methodology guarantees that in the shortest possible time you will acquire the necessary knowledge for the Java professional and working world.

The Java Fundamentals course includes the following topics for study:

Lesson 1 - Starting with Java Technology

The amazing world of Java programming

What is Java technology (from a practical approach)

Our first Java program from scratch

Lesson 2 - Variables and Operators in Java

Use of Variables in Java and what we use them for

Types of Data in Java and how they are classified

Management and Classification of operators in Java

Lesson 3 - Control statements in Java

Using the if-else structure and where to use it

Handling the switch structure and when applying it

Lesson 4 - Handling Loops in Java

Use of the for loop and its use

Using the while loop and how to apply it

Use of the do-while loop and when to use it

Lesson 5 - Object Oriented Programming

Introduction to Object Oriented Programming (OOP)

Handling Classes in Java

Use of Objects in Java

Lesson 6 - Functions in Java

Declaration of Methods or Functions in Java

Use and call of functions in Java

Lesson 7 - Data Management in Java

Using Arrays in Java

Management of Matrices in Java

Lesson 8 - Inheritance in Java

Inheritance Management in Java

Use of superclasses and subclasses in Java

Final Level Laboratory

Final Exercise where everything learned in this Level is integrated

At the end you get a certificate of having completed the Java Fundamentals course.

We wait for you on the other side.

Ing. Ubaldo Acosta

Founder of Global Mentoring

Passion for Java Technology

Who this course is for:

Anyone who wants to learn how to program in Java
Basic knowledge
Basic knowledge of PC use
Basic management of an operating system such as Windows, Mac or Linux
It is not necessary to know how to program, we will start from scratch !!!
The attitude and desire to start coding and learning Java once and for all from scratch!
What will you learn
Have the basics of the programming language with Java
You will know the basic syntax of the Java language
Manage the concept of Variables and Operators in Java
We will study Object Oriented Programming with Java
You will learn the Control Statements and Loops in Java
We will see the concept of Functions with Java
We will study the concept of Inheritance in Java
We will learn to use Arrays in java
We will handle the concept of Matrices in Java
We will learn to Design Classes in Java
We will make a final application with everything learned in the course
To know more: