I'm using IntelliJ IDEA, and our project was already set up to use Gradle. In my specific case, I started with our code sample from two weeks ago. In this article, we'll take a simple Appium Java test, and convert it to Kotlin in just a few minutes!
This allows for a gradual transition, rather than the risks of a complete rewrite.
A Java project can have some code files in Kotlin, a Kotlin program can import Java libraries, and with a little extra work, Java programs can import Kotlin libraries. What many readers may not know, is that Kotlin code can be easily integrated into a Java project. Kotlin has many features which clean up some of the longstanding issues with Java, and also just gives a fresh start, without needing to support legacy decisions and APIs. It is the officially preferred language for Android app development, and a friend of mine is even rewriting his team's backend API in Kotlin. The compiled code runs on the JVM, it is supported by Java IDEs, and its syntax is very similar to Java. So, it is recommended to convert the Kotlin code to Java code with the help of IntelliJ IDEA.ĭo share this blog with your fellow developers to spread the knowledge.Kotlin is a new programming language, which is many ways is the successor to Java. The above method will generate the Java file but the code will be complicated to understand. Download theĪfter downloading the jar file, run the below command to get the Java file, out of your Now, we need to decompile the class file generated after the first step. To use Fernflower, follow the below steps: But the demerit of this method is that you will not get the pure Java file and you need to manually download the Fernflower jar file. So, instead of using the IntelliJ IDEA, we can directly use Fernflower. Under the hood, the IntelliJ IDEA uses the Fernflower. You will get the bytecode of your Kotin file.īutton to get your Java code from the bytecode. Open your Kotlin project in the IntelliJ IDEA / Android Studio. Steps to convert your Kotlin source file to Java source file: To integrate some feature that can be easily implemented in Java. So, it becomes easy to convert the Java code into Kotlin and vice-versa.įollowing are some of the advantages or reasons for converting Kotlin code to Java code: compiling the Kotlin code to the JVM bytecode and then decompile the bytecode to the Java code. Converting a Kotlin file to Java file involves two steps i.e.
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