Count number of values of a list having same hash value in java?

by

Don’t know if I understand exactly what u want but if u want to find in that map how many records have a value u should use it like this :

public static void main(String[] args) {
    Map<String, List<String>> invertedindex = new HashMap<String, List<String>>();
    List<String> myList = new ArrayList<>();
    myList.add("firstitem");
    myList.add("seconditem");
    invertedindex.put("book", myList);
    invertedindex.put("book2", myList);
    int count_ = Collections.frequency(invertedindex.values(), myList);
    System.out.println(count_);
}

This will print 2.

More Related Contents:

  1. Java Equivalent to Python Dictionaries
  2. How to convert fuzzy hash string to a file? [closed]
  3. How do I efficiently iterate over each entry in a Java Map?
  4. Best implementation for hashCode method for a collection
  5. Java Class that implements Map and keeps insertion order?
  6. Convert a JSON String to a HashMap
  7. How do I convert a Map to List in Java?
  8. How to call a method stored in a HashMap? (Java) [duplicate]
  9. Java LinkedHashMap get first or last entry
  10. Bidirectional Map
  11. Case insensitive string as HashMap key
  12. Understanding strange Java hash function
  13. How to remove a key from HashMap while iterating over it? [duplicate]
  14. Java – How to create new Entry (key, value)
  15. What is a best practice of writing hash function in java?
  16. How can I sort Map values by key in Java?
  17. How do you create a dictionary in Java? [closed]
  18. Partial search in HashMap
  19. Java API for plural forms of English words
  20. What is the reason behind Enum.hashCode()?
  21. Persisting sha256 hash objects?
  22. Is using java Map.containsKey() redundant when using map.get()
  23. Convert JSONObject to Map
  24. Convert Set to HashMap
  25. Most elegant way to join a Map to a String in Java 8
  26. How to convert a string to a HashMap? [duplicate]
  27. Good hashCode() Implementation
  28. Compare two hex strings in Java?
  29. Explanation of HashMap#hash(int) method
  30. Group by field name in Java

Leave a Comment