A Admin • 799.53K Points Coach Report Q. Which method returns the default value without inserting a new key? (A) get() (B) setdefault() (C) pop() (D) None of these
A Admin • 799.53K Points Coach Report Q. What does the `findAny()` method return? (A) First element of the stream (B) Any element, possibly the first, wrapped in Optional (C) All matching elements (D) Null
A Admin • 799.53K Points Coach Report Q. What happens if `stream()` is called on a null List? (A) Empty stream is returned (B) NullPointerException is thrown (C) Compilation error (D) All elements are removed
A Admin • 799.53K Points Coach Report Q. Which method would you use to get the maximum value from a Stream? (A) max() (B) maximum() (C) findMax() (D) collectMax()
A Admin • 799.53K Points Coach Report Q. What is returned by `reduce()` when no identity is provided and the stream is empty? (A) 0 (B) null (C) Optional.empty() (D) IllegalStateException
A Admin • 799.53K Points Coach Report Q. Which of the following is not a valid intermediate operation? (A) map() (B) filter() (C) collect() (D) limit()
A Admin • 799.53K Points Coach Report Q. Which method returns true if the stream contains no elements? (A) isEmpty() (B) noneMatch(x -> true) (C) count() == 0 (D) Both b and c
A Admin • 799.53K Points Coach Report Q. Which method is used to create a Stream of primitive ints? (A) IntStream.of() (B) Stream.ofInt() (C) IntStream.stream() (D) Stream.of(int[])
A Admin • 799.53K Points Coach Report Q. Which of the following types is a primitive specialization of Stream? (A) DoubleList (B) LongList (C) IntStream (D) StringStream
A Admin • 799.53K Points Coach Report Q. What does `flatMapToInt()` return? (A) Stream<Integer> (B) IntStream (C) DoubleStream (D) LongStream