How to write to a file in Kotlin
Overview
There are multiple ways to write to a file in Kotlin. We’ll discuss the following two ways:
- The
writeTextmethod - The
writeBytesmethod
The writeText() method
It’s easier to write to a file using the writeText() method. It allows us to write a string to a file. The method first encodes the given text to the specified encoding and then internally uses the writeBytes() method to write to a file.
Syntax
File.writeText(text: String, charset: Charset = Charsets.UTF_8)
Parameter
text: We use this parameter text/string to write to a file.charset: We use this character set/encoding.
Code
import java.io.Filefun main() {val fileName = "file.txt"val myFile = File(fileName)val content = "Educative is the best platform."myFile.writeText(content)println("Written to the file")}
The writeBytes() method
The writeBytes() method writes a ByteArray to the specified file.
Syntax
File.writeBytes(array: ByteArray)
Parameter
array: This is the byte array to write to a file.
Code
import java.io.Filefun main() {val fileName = "file.txt"val myFile = File(fileName)val content = "Educative is the best platform."myFile.writeBytes(content.toByteArray())println("Written to the file")}
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