Core String Methods for Daily Use Java’s String class provides dozens of methods for text processing. Let’s break down the most critical …
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What Does “Immutable” Mean? In Java, immutable means once a String object is created, its value cannot be modified. Any operation that appears …
Read More Java String Immutability Explained: Why Strings Can’t Change
1. Compact Strings (Java 9+) What Changed? Prior to Java 9, Strings used a char[] (2 bytes per character). Compact Strings optimize memory by: …
Read More Advanced Java String Techniques: Compact Strings, Interning, and Custom Structures
Object-Oriented Programming (OOP) is built on four foundational principles that promote modular, reusable, and maintainable code. These pillars are encapsulation, inheritance, polymorphism, and abstraction. …
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PEMDAS is a mnemonic for the order of operations in arithmetic. It ensures calculations are performed consistently. In Java, it governs how expressions …
Read More PEMDAS in Java: Order of Operations Explained with Examples
Spring Boot Async Tasks allow developers to execute time-consuming operations (e.g., API calls, file processing, or database updates) without blocking the main …
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If you’re using Spring Boot scheduled tasks but notice tasks overlapping, lagging, or blocking each other, the culprit is likely the default …
Read More Spring Boot Thread Pool Configuration: Optimizing Scheduled Tasks for Performance
Spring Boot Scheduled Tasks are essential for automating repetitive jobs like database cleanup, report generation, or API polling. In this …
Read More How to Implement Scheduled Tasks in Spring Boot: A Step-by-Step Guide
Learn to Create, Read, Update, and Delete Data with Java Database Connectivity CRUD (Create, Read, Update, Delete) forms the foundation …
Learn to Build, Manage, and Scale Database-Driven Java Applications A Step-by-Step JDBC Tutorial for Beginners and Beyond Why Learn JDBC? …
Read More JDBC Tutorial: The Ultimate Guide to Java Database Connectivity