Definition: A function which can accepts a function as parameter or can returns a function is called Higher-Order function. Instead of Integer, String or Array as a parameter to function, we will pass anonymous function or lambdas. What is () -> unit in Kotlin? The Unit type in Kotlin is…

Volatile keyword is used to modify the value of a variable by different threads. It is also used to make classes thread safe. Case 1: class MyObject { // Changes made to currentAction in one thread // may not immediately reflect in other thread static int currentAction = 5; } …