How to use the lazy keyword in Kotlin

Question

```kotlin
val aVar by lazy {
    println("I'm calculating this value")
    "Hello"
}

println(aVar)
println(aVar)
println(aVar)
println(aVar)
```

At runtime, what will be displayed in the console?

Accepted Answer

> I calculate this value  
> Hello  
> Hello  
> Hello  
> Hello

Answer

> I calculate this value  
> Hello  
> I calculate this value  
> Hello  
> I calculate this value  
> Hello  
> I calculate this value  
>Hello

Answer

> I calculate this value  
> Hello

Answer

> Hello  
> I calculate this value  
> Hello  
> Hello  
> Hello

Question from the Kotlin test