Need some help with these, i have guessed at some but wanna make sure my answers are right. Thank you

Terminal Stream operation ________ performs processing on every element in a stream (e.g., display each element).

		forNext
		for
		forAll
		forEach

QUESTION 2

Prior to Java SE 8, Java supported three programming paradigms. Java SE 8 adds ________.

		procedural programming
		object-oriented programming
		generic programming
		functional programming.

QUESTION 3

A nice performance feature of lazy evaluation is the ability to perform________ evaluation, that is, to stop processing the stream pipeline as soon as the desired result is available.

		premature
		short circuit
		terminal
		intermediate

QUESTION 4

What is the meaning of ( ) in the following lambda? () -> System.out.println("Welcome to lambdas!")

		the lambdas parameters are inferred
		the lambdas parameters are supplied by a method reference
		the lambda has an empty parameter list
		the given expression is not a valid lambda

QUESTION 5

The basic generic functional interface ________ in package java.util.function contains method apply that takes a T argument and returns a value of type R. Calls a method on the T argument and returns that methods result.

		Consumer
		Function
		Supplier
		BinaryOperator

QUESTION 6

________ is an intermediate operation that transforms a streams elements to new values and produces a stream containing the resulting (possibly different type) elements.

		Transforming
		Converting
		Mapping
		Translating

QUESTION 7

Class Arrays provides ________ stream methods for creating IntStreams, LongStreams and DoubleStreams from int, long and double arrays or from ranges of elements in the arrays.

		virtual
		package
		overridden
		overloaded

QUESTION 8

Collectors static method groupingBy with two arguments receives a Function that classifies the objects in the stream and another Collector (known as the ________ Collector).

		stream
		downstream
		grouping stream
		upsteam

QUESTION 9

Interface Stream (package java.util.stream) is a generic interface for performing stream operations on objects. The types of objects that are processed are determined by the Streams ________.

		root
		origin
		source
		start

QUESTION 10

A lambda expression represents a(n) ________ methoda shorthand notation for implementing a functional interface.

		functional
		unnamed
		undesignated
		anonymous

QUESTION 11

Method reduces first argument is formally called a(n) ________ valuea value that, when combined with any stream element using the IntBinaryOperator produces that elements original value.

		original
		identity
		preserve
		self

QUESTION 12

Class IntStream provides terminal operations for common stream ________ count returns the number of elements, min returns the smallest int, max returns the largest int, sum returns the sum of all the ints and average returns an OptionalDouble (package java.util) containing the average of the ints as a value of type double.

		consolidations
		deductions
		reductions
		trims

QUESTION 13

The basic generic functional interface ________ in package java.util.function contains method test that takes a T argument and returns a boolean. Tests whether the T argument satisfies a condition.

		Consumer
		Function
		Supplier
		Predicate

QUESTION 14

Stream method ________ maps objects to double values and returns a DoubleStream. The method receives an object that implements the functional interface ToDoubleFunction (package java.util.function).

		doubleMap
		toDouble
		mapToDouble
		toDoubleStream

QUESTION 15

Collectors static method groupingBy with one argument receives a Function that classifies objects in the streamthe values returned by this function are used as the keys in a Map. The corresponding values, by default, are ________ containing the stream elements in a given category.

		Lists
		Arrays
		Strings
		Collectors

QUESTION 16

Functional interface BiConsumers accept method has two parameters. For Maps, the first represents the ________ and the second the corresponding ________.

		key, variable
		lambda, value
		lambda, variable
		key, value

QUESTION 17

Class Arrays ________ method is used to create a Stream from an array of objects.

		stream
		arrayToStream
		createStream
		objectToStream

QUESTION 18

An ________ (package java.util.stream) is a specialized stream for manipulating int values.

StreamOfInt
		IStream.
		IntegerStream
		IntStream

QUESTION 19

The basic generic functional interface ________ in package java.util.function contains method get that takes no arguments and produces a value of type T. Often used to create a collection object in which a stream operations results are placed.

		Consumer
		Function
		Supplier
		BinaryOperator

QUESTION 20

The basic generic functional interface ________ in package java.util.function contains method accept that takes a T argument and returns void. Performs a task with its T argument, such as outputting the object, invoking a method of the object, etc.

		Consumer
		Function
		Supplier
		BinaryOperator

QUESTION 21

The basic generic functional interface ________ in package java.util.function contains method apply that takes two T arguments, performs an operation on them (such as a calculation) and returns a value of type T.

		Consumer
		Function
		Supplier
		BinaryOperator

QUESTION 22

By default, method sorted uses ________.

		ascending order
		the natural order for the stream's element type
		descending order
		the order specified in a command-line argument

QUESTION 23

Map method entrySet returns a Set of Map.Entry objects containing the Maps ________.

		values
		keys
		index
		keyvalue pairs

QUESTION 24

The new language and library capabilities that support functional programming were added to Java as part of Project ________.

		Utilitarian
		Upsilon
		Lambda
		Utility

QUESTION 25

Functional interface Comparators default method ________ reverses an existing Comparators ordering.

		invert
		descending
		reversed
		downward

QUESTION 26

Map method ________ performs an operation on each keyvalue pair.

		for
		forNext
		forEach
		forAll

QUESTION 27

Stream mutable reduction operation ________ creates a new collection of elements containing the results of the streams prior operations.

		combine
		accumulate
		gather
		collect

QUESTION 28

________ is a method reference for an instance method that should be called on a specific object. It creates a one-parameter lambda that invokes the instance method on the specified objectpassing the lambdas argument to the instance methodand returns the methods result.

		Math::sqrt
		System.out::println
		TreeMap::new
		String::toUpperCase

QUESTION 29

Stream method ________ eliminates duplicate objects in a stream.

		distinct
		discrete
		unique
		different

QUESTION 30

Intermediate Stream operation ________ results in a stream in which each element of the original stream is mapped to a new value (possibly of a different type)e.g., mapping numeric values to the squares of the numeric values. The new stream has the same number of elements as the original stream.

		mapped
		map
		mapper
		mapping

QUESTION 31

Collectors static method ________ returns a Collector that counts the number of objects in a given classification, rather than collecting them into a List.

		counter
		count
		counting
		enumerate

QUESTION 32

Stream mutable reduction operation ________creates an array containing the results of the streams prior operations.

		array
		createArray
		toArray
		reduceArray

QUESTION 33

The intermediate Stream operation ________ results in a stream containing only the unique elements.

		distinct
		map
		filter
		limit

QUESTION 34

________ is a method reference for an instance method of a class. It creates a one-parameter lambda that invokes the instance method on the lambdas argument and returns the methods result.

		Math::sqrt
		System.out::println
		TreeMap::new
		String::toUpperCase

QUESTION 35

________ is a constructor reference. It creates a lambda that invokes the no-argument constructor of the specified class to create and initialize a new object of that class.

		Math::sqrt
		System.out::println
		TreeMap::new
		String::toUpperCase

QUESTION 36

You can define your own reductions for an IntStream by calling its ________ method. The first argument is a value that helps you begin the reduction operation and the second argument is an object that implements the IntBinaryOperator functional interface.

		reduction.
		lessen
		trim
		reduce

QUESTION 37

You can declare that an interface is a functional interface by preceding it with the @FunctionalInterface annotation. The compiler will then ensure that the interface contains ________; otherwise, itll generate a compilation error.

		no abstract methods
		all abstract methods
		only one abstract method
		one or more abstract methods.

QUESTION 38

The basic generic functional interface ________ in package java.util.function contains method get that takes no arguments and returns a value of type T.

		UnaryOperator
		Function
		Supplier
		BinaryOperator

QUESTION 39

Intermediate Stream operation ________ results in a stream with the specified number of elements from the beginning of the original stream.

		distinct
		map
		filter
		limit

QUESTION 40

IntStream method ________performs the count, min, max, sum and average operations in one pass of an IntStreams elements and returns the results as an IntSummaryStatistics object (package java.util).

		allStatistics.
		completeStatistics.
		entireStatistics.
		summaryStatistics