Java / Set and its implementations

Difference between HashSet and LinkedHashSet in Java collection.

A LinkedHashSet is ordered as it maintains a doubly-linked List across all elements. When you iterate through a HashSet the order is unpredictable, while a LinkedHashSet lets you iterate through the elements in the order in which they were inserted.

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Map and its implementations

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Java / Set and its implementations

Difference between HashSet and LinkedHashSet in Java collection.

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