Can you list classes that implement the Map interface or inherit from it?

In Java, the following main classes from the standard library implement the Map interface:

• HashMap — implements a hash table, provides fast access by key.
• TreeMap — implements a red-black tree, stores keys in sorted order.
• LinkedHashMap — extends HashMap, maintains insertion order.
• Hashtable — an outdated class, synchronized hash table.
• ConcurrentHashMap — thread-safe implementation of a hash table for concurrent access.

Example of using HashMap:

Map<String, Integer> map = new HashMap<>();
map.put("apple", 3);
map.put("banana", 5);
System.out.println(map.get("apple")); // 3