CODEWITHSUNDEEP
classkotlinproperties
olenscki
olenscki

Reputation: 507

Define class parameter with get() at Kotlin

I'm learning Kotlin and I've been stuck with this error for a while: I'm trying to define a class propertie heat based on another propertie spiciness using a when statement with the following code

14 class SimpleSpice{
15     var name: String = "curry"
16     var spiciness: String = "mild"
17     var heat: Int = {
18         get(){
19             when (spiciness) {
20                 "weak" -> 0
21                 "mild" -> 5
22                 "strong" -> 10
23                 else-> -1
24             }
25         }
26     }
27 }

I'm getting the following error:

Error:(10, 29) Kotlin: Type mismatch: inferred type is () -> Int but Int was expected
Error:(17, 21) Kotlin: Type mismatch: inferred type is () -> ??? but Int was expected
Error:(18, 9) Kotlin: Unresolved reference. None of the following candidates is applicable because of receiver type mismatch: 
public inline operator fun <K, V> Map<out ???, ???>.get(key: ???): ??? defined in kotlin.collections
public operator fun MatchGroupCollection.get(name: String): MatchGroup? defined in kotlin.text

Additionally, the get() code is painted red with the following exeption:

Type mismatch: inferred type is () -> ??? but Int was expected. Unresolved reference. None of the following candidates is applicable because of receiver type mismatch: 
public operator fun MatchGroupCollection.get(name: String): MatchGroup? defined in kotlin.text.

Upvotes: 1

Views: 2084

Answers (1)

Sergey Ushakov
Sergey Ushakov

Reputation: 186

Notice, you declared heat as var, without specifying setter.

Try this:

class SimpleSpice {
    var name: String = "curry"
    var spiciness: String = "mild"
    val heat: Int
        get() {
            return when (spiciness) {
                "weak" -> 0
                "mild" -> 5
                "strong" -> 10
                else -> -1
            }
        }
}

Upvotes: 1

Related Questions