Difference Between Java and Kotlin

In this post, we will discuss the differences between the two JVM languages that are Java and Kotlin.

Difference Between Java and Kotlin

Java and Kotlin are both popular programming languages for developing Android applications, but they have some key differences. 

Here are a few of the main differences between Java and Kotlin:

  1. Syntax: Kotlin has a more concise and expressive syntax than Java, making it easier to write and read.

  2. Null safety: Kotlin has built-in null safety features to help prevent null pointer exceptions, which are a common source of errors in Java.

  3. Functional programming: Kotlin has support for functional programming concepts, such as lambdas and higher-order functions, while Java's functional programming support is limited.

  4. Extension functions: Kotlin provides extension functions, which allow you to add new functionality to a class without inheriting from it or using design patterns such as decorator.

  5. Data classes: Kotlin has a feature called data classes, which allows you to create simple classes that only hold data without the need to write boilerplate code such as equals, hashCode, toString, etc.

  6. Interoperability: Kotlin is fully interoperable with Java, which means that you can use Java libraries and call Java code from Kotlin and vice-versa.

  7. Performance: Both Kotlin and Java run on the JVM and the performance of the two languages is similar, but with some improvements in performance for certain features in Kotlin.

  8. Community: Java has a larger community, more libraries and more job opportunities. While Kotlin is getting more and more popular and is used increasingly.

These are just a few of the main differences between Java and Kotlin, but there are many other differences as well. The choice of language will depend on your particular use case, your team's experience and preferences, as well as the project's requirements.