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Collections in Java

DEV Community·Harini·3 months ago
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What is Collections Framework in Java? The Java Collections Framework (JCF) is a set of classes and interfaces provided by Java to store, manage, and manipulate groups of objects efficiently. Before Collections, developers mainly used arrays. Arrays have a fixed size and limited functionality. Collections provide dynamic storage and many built-in methods for handling data. Package : java.util Why is Collections Used? Collections are used to: Store multiple objects dynamically. Perform searching, sorting, insertion, and deletion easily. Reduce coding effort through built-in methods. Improve code reusability and maintainability. Handle large amounts of data efficiently.…

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