In the previous article, we have discussed internal working about the HashMap and here we will discuss the internal working of LinkedHashMap in Java. As we know that, a lot of interviewers ask internal working of data structures such HashMap, TreeMap, LinkedHashMap, LinkedList etc. That is why I have brought such questions in front of you. LinkedHashMap extends HashMap class and implements Map interface. That means LinkedHashMap has all functionality same as the HashMap either calculating index using Hashing for bucket finding. The difference between LinkedHashMap and HashMap is the LinkedHashMap has retrieval order same as insertion order. LinkedHashMap in
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