Returns a property delegate for a read/write property with a non-null value that is initialized not during object construction time but at a later time. Trying to read the property before the initial value has been assigned results in an exception.
import kotlin.properties.Delegates import kotlin.test.* fun main() { //sampleStart var max: Int by Delegates.notNull() // println(max) // will fail with IllegalStateException max = 10 println(max) // 10 //sampleEnd }xxxxxxxxxxvar max: Int by Delegates.notNull()// println(max) // will fail with IllegalStateExceptionmax = 10println(max) // 10
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