Exercise: A mutability problem
What operation on name will make the following code print false?
fun main() {
val set = mutableSetOf<Name>()
val name = Name("AAA")
set.add(name)
// ???
println(set.contains(name)) // should print false
println(set.first() == name) // should print true
}
data class Name(var name: String)
This problem can either be solved in the below playground or you can clone kotlin-exercises project and solve it locally. In the project, you can find code template for this exercise in effective/safe/NameAndSet.kt. You can find there starting code.
Once you are done with the exercise, you can check your solution here.
Playground
fun main() {
val set = mutableSetOf<Name>()
val name = Name("AAA")
set.add(name)
// ???
println(set.contains(name)) // should print false
println(set.first() == name) // should print true
}
data class Name(var name: String)
