Java Collections Framework: Working with LinkedHashMap

In Java, LinkedHashMap is a hash table and linked list implementation of the Map interface, with predictable iteration order. This collection maintains a doubly-linked list running through all its entries. The iteration order is typically the order in which keys were inserted into the map (insertion-order). Notably, LinkedHashMap permits null elements and provides time complexity of O(1) for basic operations such as adding, removing, and checking the presence of a key.This Java code demonstrates the use of a LinkedHashMap to store and manage a simple list of students with their IDs and names. It illustrates basic operations like adding entries, accessing a specific entry, iterating over all entries to display them, and removing an entry, highlighting the LinkedHashMap's predictable iteration order based on insertion order.

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