Category: Java
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Prerequisites for Java 21 String Templates To get started with Java 21 string templates, you need to have **Java 21** installed on your system. You can download the latest version from the official Oracle website. Ensure that you have the **Java Development Kit (JDK)** installed, as it includes the necessary tools for development. For this…
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Prerequisites for Java Lambda Expressions To work with Java lambda expressions, you need to have a good understanding of **Java 8** and its features. Java 8 introduced **functional programming** concepts, which are essential for using lambda expressions. The functional programming paradigm focuses on the use of pure functions, immutability, and the avoidance of changing state.…
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When you have 200 concurrent users hitting a single-threaded service, you’ll see java.lang.OutOfMemoryError: Java heap space errors due to the inefficient use of objects. This is where value classes and value objects come into play, allowing for more efficient memory management. TL;DR: In this tutorial, you’ll learn how to implement value classes and objects in…
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Prerequisites for Working with Java 21 Virtual Threads To work with Java 21 virtual threads, you should have a solid understanding of **Java concurrency** and **multithreading** concepts. This includes familiarity with threads, Thread class, and Runnable interface. You should also be comfortable with Java 8 features, such as **lambda expressions** and **method references**. For further…
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Prerequisites for Learning Java Design Patterns To learn Java design patterns, you should have a solid grasp of **Java basics**, including data types, operators, and control structures. You should also be familiar with **object-oriented programming (OOP) concepts**, such as classes, objects, inheritance, and polymorphism. A strong understanding of these fundamentals will make it easier to…