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. That’s all for Kotlin print functions and quick introduction of Kotlin REPL.Converting a Kotlin file to Java file involves two steps i.e. Once it is done, start the REPL by entering kotlinc in your terminal/cmd Following is my first code in the REPL. Typically, on a mac, we can use HomeBrew on our terminal to install the kotlin compiler. We can install command line compiler on Mac/Windows/Ubuntu as demonstrated here. W e can do so in our terminal/command line by initiating the kotlin compiler. REPL also known as Read-Eval-Print-Loop is used to run a part of code in an interactive shell directly.

InputMismatchException is thrown when the input is of a different type from the one asked. Println('First value should be a float, second should be a boolean. The following code shows print statements in action: fun main(args: Array) ') The println statement appends a newline at the end of the output. The print statement prints everything inside it onto the screen. To output something on the screen the following two methods are used: Furthermore, we’ll look into Kotlin REPL. Today we will learn how to use Kotlin print functions and how to get and parse user input from console.

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