SYNCHRONIZED

import kotlin.concurrent.thread

fun main() { 
   //sampleStart 
   val answer: Int by lazy(LazyThreadSafetyMode.SYNCHRONIZED) {
    println("Computing the answer to the Ultimate Question of Life, the Universe, and Everything")
    42
}

val t1 = thread {
    println("Thread 1: $answer")
}

val t2 = thread {
    println("Thread 2: $answer")
}

// It is guaranteed that 'Computing' message will be printed once, and both threads will see 42 as an answer
t1.join()
t2.join() 
   //sampleEnd
}