Mastering Kotlin Essentials/

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The try, catch, and finally Blocks

The try, catch, and finally Blocks

Learn how to effectively use try-catch expressions and finally blocks in Kotlin for advanced error handling and resource cleanup.

We'll cover the following...

Using try-catch as an expression

The try-catch structure can be used as an expression. It returns the result of a try block if no exception occurs. If an exception occurs and is caught, then the try-catch expression returns the result of the catch block.

Kotlin 1.5
fun main() {
    val a = try {
        1
    } catch (e: Error) {
        2
    }
    println(a) // 1
    val b = try {
        throw Error()
        1
    } catch (e: Error) {
        2
    }
    println(b) // 2
}
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