Dec 24, 2025 · 3 min read · Java Arrays Explained – Beginner-Friendly Guide Arrays are one of the most important topics in Java. They are widely used in real projects and often asked in interviews. This guide explains arrays slowly and simply, step by step. 1. What is an Array...
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Dec 15, 2025 · 3 min read · 🔥 Java 5 (J2SE 5.0)—The "Tiger" Release That Modernized Java Released in 2004, Java 5 (also called J2SE 5.0 or Tiger Release) is considered one of the biggest turning points in the entire history of Java. This version completely changed how develope...
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Oct 3, 2025 · 8 min read · Java annotations are a powerful and flexible feature introduced in Java 5. They provide a way to add metadata to your code, making it more expressive and allowing tools and frameworks to generate code, perform validations, and more. In this extensive...
Join discussionNov 30, 2024 · 4 min read · 1. Introduction to Java Streams The Stream API, introduced in Java 8, is a powerful abstraction for processing collections of data in a functional-style. It enables operations on a sequence of elements (like filtering, mapping, and reducing) and supp...
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Nov 29, 2024 · 5 min read · Introduction Java introduced Optional<T> in Java 8 to handle the common issue of NullPointerException and make code more readable and expressive. Optional provides a container object which may or may not contain a non-null value, helping developers t...
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May 17, 2024 · 6 min read · Dưới đây là 20 câu hỏi phỏng vấn Java tập trung vào các chủ đề Generics bao gồm Why Generics, Raw Types, Generic Types, Bounded Types, Type Inference, Erasure, Bridge Methods, Wildcard, The Get & the Put Principle, và Reification. Why Generics Câu h...
Join discussionMay 1, 2024 · 16 min read · Java has continuously evolved to meet the demands of modern software development. This article explores the top 5 features introduced in each Java version from Java 8 to the latest Java 22, providing in-depth explanations, useful examples, and guidan...
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Jan 14, 2024 · 2 min read · Lambda expressions in Java provide a concise and expressive way to write anonymous functions (implementations of functional interfaces). Lambda expressions streamline the syntax, making code more readable and allowing for more flexible use of functio...
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Jan 14, 2024 · 5 min read · In Java Stream API, operations are classified into two main types: intermediate operations and terminal operations. Intermediate operations are those that transform a stream into another stream, allowing you to perform various transformations, filter...
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Jan 14, 2024 · 3 min read · The Optional class in Java was introduced in Java 8 to address the problem of handling potentially null values more effectively. It provides a container that may or may not contain a non-null value. Optional is designed to encourage a more explicit a...
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