Question

How to convert a decimal string to a double in Kotlin

Answer 1

fun main() {
    val s = "12.34"
    val d = s.toDouble()

    println("String value: $s")
    println("Double value: $d")
}


/*
run:

String value: 12.34
Double value: 12.34

*/

 

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Answer 2

fun main() {
    val s = "12.34"
    val d = s.toDoubleOrNull() // safely option
    
    println("String value: $s")
    println("Double value: $d")
}


/*
run:

String value: 12.34
Double value: 12.34

*/

 

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