Given a TreeMap, the task is to iterate this TreeMap in Java.
So we will have to use TreeMap.entrySet() method. This method returns a collection-view(Set<Map.Entry>) of the mappings contained in this treemap. So we can iterate over key-value pair using getKey() and getValue() methods of Map.Entry. This method is most common and should be used if you need both map keys and values in the loop.
Below is the Java program to demonstrate it.
[Code, code.geeksforgeeks.org] [GFG, geeksforgeeks.org] [Practice, practice.geeksforgeeks.org] [Quiz, quiz.geeksforgeeks.org]
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