Java Collection Framework Explained – Complete Guide with Examples
Java Collection Framework – Complete Beginner Guide 📘 What is the Collection Framework? The Java Collection Framework is a set of classes and interfaces provided by Java to store, manage, and process groups of objects efficiently. 👉 It is part of the java.util package. 📌 Key Points The Collection Framework stores objects only, not primitive data types Primitive data types are stored using Autoboxing Example: int → Integer, double → Double Collection size is dynamic, controlled by the JVM Provides ready-made methods for searching, sorting, inserting, and deleting data 📘 Real-Life Example 📚 Library System A library stores many books Each book is an object Java collections store these book objects efficiently 📘 Main Interfaces in Collection Framework Collection ├── List ├── Set └── Queue Map (separate hierarchy) Interfaces: Collection List Set Queue Map 📘 Advantages of Collection Framework ✔ Stores homogeneous and het...