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Mastering Java: Advanced Topics in Java Collections Framework

Sohit Mishra
3 min readJun 25, 2024

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Welcome back to our Java series! In this article, we’ll delve deeper into advanced topics of the Java Collections Framework (JCF), exploring more complex data structures, algorithms, and techniques for efficient data management.

1. Working with Collection Interfaces

Java provides several core interfaces that define different types of collections:

  • List: Ordered collection (e.g., ArrayList, LinkedList).
  • Set: Unordered collection of unique elements (e.g., HashSet, TreeSet).
  • Queue: Ordered collection for holding elements prior to processing (e.g., LinkedList, PriorityQueue).
  • Map: Key-value pairs where each key is unique (e.g., HashMap, TreeMap).

Each interface has specific methods for manipulating and accessing elements.

2. Understanding Iterators and Iterable Interface

Iterators provide a way to traverse collections. The Iterable interface enables objects to be used with the enhanced for loop.

Example:

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class IteratorExample {
public static void…

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Sohit Mishra
Sohit Mishra

Written by Sohit Mishra

Hi, I'm Sohit Mishra, a full-stack developer obsessed with creating seamless digital experiences through front-end and back-end technologies.

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