Possible Futures with Kotlin

val executor = Executors.newSingleThreadExecutor();

val foo = Foo()   executor. execute (foo::printIt)

class Foo {

fun printIt() { B

println(

"Background thread!" ) } X

}

val executor = Executors.newSingleThreadExecutor();

val foo = Foo()   executor. execute (foo::printIt)

class Foo {

fun printIt() { B

println(

"Background thread!" ) } X

}

class User(name: String) { D  

val name = name   } A  

Jake"

data class Player( val name : String, val mark : Mark) public final { public final ; public final ; public Player(String name, Mark mark) { this . name = requireNonNull (name, "name == null" ); this . mark = requireNonNull (mark, "mark == null" ); } A @Override public boolean equals(Object o) { if ( this == o) return true ; if (!(o instanceof Player)) return false ; Player other = (Player) o; return name .equals(other. name ) && mark == other. mark ; } B @Override public int hashCode() { return 31 * name .hashCode() + mark .hashCode(); } C @Override public String toString() { return "Player{name='" + name + ", mark=" + mark + '}' ; } D } E

import org.w3c.dom.Storage class StorageGameStore(

: GameStore {

override fun totals() = TODO ()

override fun game(id: Long) = TODO ()

override fun move(id: Long, row: Int, col: Int) = TODO ()

} A

              private val

store : Storage