Java java.util Map Operation

Description

Click the following links for the tutorial for java.util and Map Operation.

1. print Map
2. Merge two map counters.
3. Print Map, sorted by Key.
4. Flatten a map of string arrays to a map of strings using the first item in each array.
5. Increase Map<K, Integer> counter.get(key) by increase.
6. Reverses a map (switches key and value types).
7. Convert parameter Map To Hashtable
8. Finds the difference between two HashMaps a and b.



9. Returns an iterator for the hash map keys that is not changed by parallel changes to the hash map.
10. print Hash Map to String
11. print Map to a String via StringBuilder
12. is Empty Map
13. Helper method that creates a singleton map.
14. unmodifiable Map
15. This method returns the Iterator of a passed map instance
16. An utility method used for debugging and printing Map<>.



17. A method to check whether the map is empty or not.
18. sort Map Ascending
19. sort Map Descending
20. Convert Properties string to Map
21. filter Map by lambda function
22. Merge All map together
23. print Map to console
24. Canonicalize a Map as a query string.
25. merged Map
26. Generate the difference between two map Collection
27. copy Map to another Map