Solution: Data class practice
data class Person(val name: String, val age: Int)
fun main() {
val person1 = Person("John", 30)
println(person1) // Person(name=John, age=30)
val person2 = person1.copy(name = "Jane")
val person3 = Person("Jane", 30)
println(person2 == person3) // true
println(person1.hashCode()) // 71750739
println(person2.hashCode()) // 71339152
println(person3.hashCode()) // 71339152
val (name, age) = person2
println(name) // Jane
println(age) // 30
}
Example solution in playground
data class Person(val name: String, val age: Int)
fun main() {
val person1 = Person("John", 30)
println(person1) // Person(name=John, age=30)
val person2 = person1.copy(name = "Jane")
val person3 = Person("Jane", 30)
println(person2 == person3) // true
println(person1.hashCode()) // 71750739
println(person2.hashCode()) // 71339152
println(person3.hashCode()) // 71339152
val (name, age) = person2
println(name) // Jane
println(age) // 30
}
