Can you explain what is included in the Java Collections Standard Library and how it is used?

The Java Collections Framework is a set of interfaces and classes that provide data structures and algorithms to work with them. The main interfaces include:

• Collection — the root interface for all collections.
• List — an ordered list of elements (e.g., ArrayList, LinkedList).
• Set — a collection of unique elements (e.g., HashSet, TreeSet).
• Queue — a queue with various processing strategies (e.g., PriorityQueue).
• Map — a key-value mapping (e.g., HashMap, TreeMap).

Using collections allows for convenient storage, processing, and iteration of data. For example, to create a list of strings and add elements:

import java.util.ArrayList;
import java.util.List;

List<String> names = new ArrayList<>();
names.add("Ivan");
names.add("Maria");
for (String name : names) {
    System.out.println(name);
}

Collections support many methods for sorting, searching, filtering, and other operations, which facilitates development.