What are the disadvantages of TreeMap?

Disadvantages of TreeMap:

• Performance: insert, delete, and search operations have a complexity of O(log n), which is slower than HashMap with an amortized complexity of O(1).
• Memory: TreeMap uses a red-black tree, which requires additional memory for storing links and balancing.
• Not suitable for frequent modifications: it may be less efficient with a large number of insert/delete operations.
• Keys must be comparable: for TreeMap to work, keys must implement Comparable or be passed a Comparator, which limits flexibility.

Therefore, TreeMap should be used when ordered access to keys is important, but not for the fastest possible performance with large data volumes.