Assessments

1. The _______ interface was introduced in Java 8 to emit elements and supports a variety of operations that perform computations based on stream elements.
2. Which of the following factory methods of the StackWalker class creates a StackWalker class instance with the given option of specifying the stack frame information that it can access?
   1. getInstance()
   2. getInstance(StackWalker.Option option)
   3. getInstance(Set<StackWalker.Option> options)
   4. getInstance(Set<StackWalker.Option> options, int estimatedDepth)
3. State whether True or False: The CompletableFuture API consists of many methods which are implementations of the CompletionStage interface, and are the implementations of Future.
4. Which among the following methods is used when a type of filtering is required to skip all the duplicate elements in a stream and select only unique element.
   1. distinct()
   2. unique()
   3. selectall()
   4. filtertype()
5. State whether True or False: One of the great advantages of CompletableFuture is that it can be passed around...