Which Java class is used to create a thread-safe map that is part of the Java Collections Framework?

Which C++ standard library provides functionalities for containers like vector, list, and map?

A. <utility>

B. <iostream>

C. <vector>

D. <algorithm>

In Python, which module provides a collection of high-performance data structures like deque and defaultdict?

A. itertools

B. numpy

C. math

D. collections

Which Java standard library class is used for implementing a resizable array?

A. ArrayList

B. HashMap

C. LinkedList

D. TreeSet

What is the purpose of the heapq module in Python?

A. To handle mathematical operations.

B. To sort data efficiently.

C. To manage input and output streams.

D. To provide heap queue algorithms.