Tuesday, August 27, 2019

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

Answer


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?



Answer



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

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