How do I efficiently iterate over each entry in a Java Map?

Question :

How do I efficiently iterate over each entry in a Java Map?,

Answer :

If I have an object implementing the Map interface in Java and I wish to iterate over every pair contained within it, what is the most efficient way of going through the map?

Will the ordering of elements depend on the specific map implementation that I have for the interface?

,

Map map = ...  for (Map.Entry entry : map.entrySet()) {      System.out.println(entry.getKey() + "/" + entry.getValue());  }  

On Java 10+:

for (var entry : map.entrySet()) {      System.out.println(entry.getKey() + "/" + entry.getValue());  }  

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Disclaimer :

The answers provided above are only to be used to guide the learning process. The questions above are open-ended questions, meaning that many answers are not fixed as above. I hope this article can be useful, Thank you

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