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README.md

SORT JAVA MAP BY KEYS AND VALUES

  • "Key,Value" order in Java HashMap is not guaranteed.
  • Sorting a Map type class by "keys" is given by TreeMap, just TreeMap.putAll(map) will return sorted map by keys.
  • Sorting a Map by "values" needs one more step, we need to define a Comparator that compares values to each other.
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