☕️ Java on Software Design

Collections Framework

Wed, 01 Nov 2023 00:05:41 +0300

Collections Framework is the architecture to represent and manipulate various Collections in Java. It consists of the following parts:

Interfaces provide abstract data types to represent the collection.
Implementation Classes are concrete implementations of the existing collection interfaces.
Algorithms provide common features for collection manipulation, such as sorting, searching, and shuffling.

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Collection Framework was introduced in Java JDK 1.2. Before that, Java had only Arrays, Stack, Vectors, and Hashtables for grouping objects.

Advantages

Consistent API. The framework provides a set of interfaces implemented by all the classes. It means that all the similar classes have a common set of methods, which makes them simpler to memorize and use.

Stream API

Sun, 28 Apr 2024 12:03:04 +0200

A Stream represents a sequence of elements and provides different kinds of operations to perform upon those elements.

Processing

Stream Operations

Stream operations are either intermediate (returns a Stream object and can be chained) or terminal (returns void or non-stream result).

Generics

Fri, 17 Apr 2026 19:34:28 +0200

Overview

Generics let you create classes, interfaces, and methods that work the same way across different types of objects. They are also referred to as parameterized types. The term generic comes from the idea that some general algorithms can be applied to different types of objects. Generics provide stronger type checks at compile time and eliminate manual type casting.