How to delete a file in Kotlin

How to delete a file in Kotlin.

Here is a step-by-step tutorial on how to delete a file in Kotlin:

Import the necessary classes:
```
import java.io.File
```
Create a File object representing the file you want to delete:
```
val file = File("path/to/file.txt")
```
Replace "path/to/file.txt" with the actual path and name of the file you want to delete.

Check if the file exists before deleting it:

if (file.exists()) {
    // File exists, proceed with deletion
} else {
    // File does not exist, handle error or exit
}

This step is optional but recommended to avoid errors if the file does not exist.

Delete the file using the delete() method:
```
val isDeleted = file.delete()
```
The delete() method deletes the file and returns true if the deletion was successful, or false otherwise. You can store the result in a variable (isDeleted in this example) to check if the file was deleted successfully.
Handle the result of the deletion:
```
if (isDeleted) {
    println("File deleted successfully.")
} else {
    println("Failed to delete the file.")
}
```
This step is optional but useful to provide feedback to the user about the status of the deletion.

And that's it! You have successfully deleted a file in Kotlin. Here's a complete example:

import java.io.File

fun main() {
    val file = File("path/to/file.txt")

    if (file.exists()) {
        val isDeleted = file.delete()

        if (isDeleted) {
            println("File deleted successfully.")
        } else {
            println("Failed to delete the file.")
        }
    } else {
        println("File does not exist.")
    }
}

Remember to replace "path/to/file.txt" with the actual path and name of the file you want to delete.