Java Programming for Complete Beginners - Java 16 - Step 25 - Map Interface - Comparison - HashMap Versus LinkedHashMap

The video tutorial covers three implementations of the Map interface: HashMap, LinkedHashMap, and TreeMap. It explains the characteristics and differences of each, such as HashMap's efficiency due to its lack of order, LinkedHashMap's maintenance of insertion order, and TreeMap's sorting of keys. The tutorial concludes with exercises to count character and word occurrences in a string using programming, encouraging viewers to apply the concepts learned.

What are the three different implementations of the MAP interface discussed in the text?

Describe the exercise mentioned in the text regarding character and word frequency in a string.