What is the role of output streams in the program execution process?

In Java, Collections is a utility class that contains static methods for working with collections (such as sorting, synchronization, creating unmodifiable collections, etc.). It is not a fundamental class of collections.

The fundamental interface in Java for collections is Collection (from the java.util package), which is the base for most collections like List, Set, and Queue.

Therefore, Collections is a helper class, not a core collection class.