Kotlin vs Java – Difference between Kotlin and Java

This tutorial is about Kotlin vs Java i.e. difference between Kotlin and Java.

Kotlin and Java both are JVM based and platform independent languages and there are various similarities in them. Kotlin and Java program on compilation converted into .class file which is executed by JVM. Still there are various dissimilarities between them that I have discussed below in tabular form.

Kotlin vs Java

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Kotlin vs Java – Difference between Kotlin and Java

Kotlin Java
Developed By Kotlin was developed by JetBrains. Andrey Breslav was team leader of project Kotlin. First version of Kotlin was released in 2016. Java was developed by Sun Microsystems which was later acquired by Oracle Corporation. James Gosling was the lead developer of Java. First version of Java was released in 1995.
Code Size In Kotlin we have to write 30-40% less code as compared to Java. In Java we have to write more code as compared to Kotlin.
Null Safety Kotlin does not have null pointer exception problem. Various ways are provided to deal with this exception. NullPointerException is most common problem in Java that is occurred when we try to access a member having null reference.
Checked Exception Kotlin doesn’t have checked exception feature. Java have checked exception feature.
Operator Overloading Kotlin allows operator overloading. Programmer can define the operators working according to need. Java doesn’t support operator overloading.
Use of Semicolon It is optional to write semicolon at the end of statements. In Java each statement must be terminated by semicolon.
App Size Android app built with Kotlin has more size because it contains Kotlin as well as Java libraries. Also Gradle build time slower for Kotlin as compared to Java. Android app built with Java has less size as compared to Kotlin. Gradle build time for Java is little faster as compared to Kotlin.

There are various new features added in Kotlin that are not in Java. On the other hand some of Java features are missing in Kotlin also. You can learn difference between Kotlin and Java in detail by visiting below link of Kotlin official site.


Comment below if you have any queries or found any information incorrect and missing in above tutorial for Kotlin vs Java.

1 thought on “Kotlin vs Java – Difference between Kotlin and Java”

  1. The source you have mentioned are great and informative. I have also come accross this Kotlin Android tutorial. Thanks for sharing this article. Cheers!!!


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