Kotlin Vs Java: Which Is the Better Option for Android App Development?

Kotlin vs web development is one of the trending subjects these days. When it comes to Android app development, Java app development language is the one that first successes the mind of web development coders. And, Java software development programming language is everywhere. So, both app development and Kotlin offer strong competition to each other. Thus, we have done a great comparison of Kotlin vs Java app development programming language.

Java

App development is a programming language formed by James Gosling. In this, we can generate any type of software development program, it also supports any type of machine. It is in Windows, Linux operating systems, and also for mobile app development.

Kotlin is a web development programming language created by JetBrains. Kotlin was publicized in the Google I/O as the official language of Android.

Features of java software development

It has easy syntax with minimum characters which tens this be easy to read and learn.
It is a highly object-orientated language that helps software developers to web development an object-oriented app development with more flexibility and extensibility.
It can be combined with object-oriented programming concepts like Inheritance, Abstraction, Polymorphism, etc. As it will be available in the library of app development.
It has a rich API for XML parsing, networking, database connectivity, and many from the open library like Apache, guava, Gone, etc.
It has software developers’ tools such as Eclipse and net beam which provides easy coding in IDE and these web development tools also support debugging.
It has a wide range of open-source libraries with app development frameworks such as maven, spring, etc.
It has a lot of open community support which provides the sharing of knowledge.

Kotlin

Kotlin is a statically entered app development programming language for Java Virtual Machine (JVM) and JavaScript. Defined as a general-purpose language, Kotlin presents functional web development features to support Java interoperability. The Kotlin project was born out of the purpose of heightened output. The software developers’ goal was to increase the coding practice in a way that was equally practical and effective.

Features of kotlin

It reduces the total amount of overlapped codes.
It can easily avoid common classes of errors including null pointer.
it is interoperable with Java.
It is a app developers tool friendly language as it can also use app development IDE and android studios, etc.
You can easily shift from java to kotlin.

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Differences between Kotlin vs Java

Null safe

Java

In Java, Null Pointer Exceptions reason huge prevention for web developers. It allows operators to assign null to any variables but while editing an object reference taking null value increases a null pointer exception which the user wants to handle.

Kotlin

In Kotlin, by default, all kinds of variables are non-nullable (i.e. we can’t allocate null values to any kind of variables/objects). If we try to allocate or return null values, Kotlin code will fail during compile time. If we want a variable to have a null value, we can declare as follows:

value num: Int? = null.

Extension function

Java

In Java web development, if we need to extend the functionality of the current class, we need app developers to make a new class and inherit the parent class. So, Extension functions are not available in Java.

Kotlin

Kotlin offers software developers the facility to spread an existing class with new web development functionality. We can make extend functions by starting the name of a class to name of the new function.

Coroutines support

Java

In Java, whenever if we recruit a long-running network I/0 or CPU Intensive operations, the matching thread will be jammed. In the android app development, Android is single-threaded by default. Java offers the facility to create many threads in the background and run but handling them is a difficult task.

Kotlin

In Kotlin, we can generate many threads to run these long-running rigorous operations but we have coroutines support, which will hang execution at a certain point without blocking threads while performing long-running intensive app development operations.

No checked exceptions

Java

In Java, we have checked exceptions support which generates software developers declare and catch the exception which eventually leads to strong code with good fault handling.

Kotlin

In Kotlin, we don’t have checked exceptions. So, app developers don’t essential to declare or catch the exceptions, which have rewards and drawbacks.

Data classes

Java

In Java, assume we need software developers to have a class that desires to hold data but nobody else. For this we want to describe app developers constructors, getter and setter methods, variables to store data, hashcode (), equals () and toString (), functions.

Kotlin

In Kotlin, if we want to have classes that need app development to keep data, we can declare a class with the keyword “data” in the class definition then the compiler will take care of all of this work such as making getter, constructors, setter methods for dissimilar fields.

Smart casts

Java

In Java app development, we need to check the kind of variables and cast affording to our operation.

Kotlin

In Kotlin, smart casts will switch these casting payments with keyword “is-checks” which will be checked for unchallengeable values and makes an implicit casting.

Type inference

Java

In Java, we need app developers to require a type of each variable openly while declaring.

Kotlin

In Kotlin, we don’t need web developers to require the type of each variable based on the task it will handle. If we need software developers to specify, we can do it.

Functional app development programming

Java

Java doesn’t have functional software development programming support till Java 8 but whereas Android app development provisions the only subsection of Java 8 structures.

Kotlin

Kotlin is a combination of procedural and functional software development programming language which contains many useful approaches such as operator overloading, lambda, lazy evaluation, and higher-order functions, etc.

Merits and demerits of Kotlin

Merits

Kotlin is short-lived than Java which indicates fewer amounts of probabilities of bugs and errors.
Kotlin has a lot of struggles with Android app development. Yet it is also used in backend projects such as Spring 5.
Moving from Java to Kotlin is fairly simple. All that needs app developers to be complete is fixed the Kotlin plugin and contain it in Gradle build files and connect on the “convert” option.

Demerits

In place of a steep education curve while changing whole teams to Kotlin because of the brief syntax of the web development language.
The slow rapidity of compiling in comparison with Java.
A restricted number of developers of Kotlin indicates limited learning resources and discovery it hard to figure out responses to questions.

Merits and demerits of java

Merits

Simple to learn and understand.
Versatile, one can effortlessly run it in a virtual machine and browser window. This is suitable while recycling code and updating software.
An outstanding alternative for cross-platform app development.
Android tallies on Java for its web development functions. The Android SDK contains most of the standard Java libraries.

Demerits

One of the highest demerits of Java is that it causes problems with the Android API pattern.
As it is a long-winded app development language, larger codes are essential by Java which comes with larger uncertainties of errors and bugs.
The rapidity of Java is much slower than most of the other languages and desires a lot of storing capacity.

How can change from Java to Kotlin be helpful?

Kotlin is absolutely a modern answer to elder Java. Some app developers features make Kotlin stand out from the crowd, as there are many options offered.

Kotlin is concurrently treatable with Java web development. We can have together Java and Kotlin code co-exist inside a single project. Both codes can compile effortlessly and software development users are not even talented to make out which portion of the code in Kotlin and which portion in Java.

Kotlin and Java classes can be written concurrently. There is no necessity to change the entire web development to Kotlin or opening a software developers new project. Otherwise, small hunks of app developers codes can be written in Kotlin and can be introduced as and when required, without affecting the whole software development code.

Conclusion

Finally, it’s an overview of the differences Between Kotlin vs java. I hope you will have a well understanding of these Kotlin vs java app development languages after reading this Kotlin vs Java article. In my view, we can proceed with Kotlin for Android app development without disturbing the compiling time even though Java software development has few advantages over Kotlin.

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