Difference Between interface and @interface in Java In Java, interface and @interface are two distinct constructs with unique purposes. Here’s a concise breakdown of their differences, characteristics, and examples to illustrate their use cases. interface in Java The interface keyword is used to define an interface, which acts as a contract for classes. An…
To create a tutorial for ArrayUtils and JavaUtils, let's first break down what these utilities are generally used for. ArrayUtils ArrayUtils is often a utility class provided by libraries such as Apache Commons Lang (org.apache.commons.lang3.ArrayUtils) for performing common array operations in Java. These operations include searching, reversing, adding elements, removing elements, and more. JavaUtils…
In Java, the java.util package provides a variety of utility classes that are extremely useful for day-to-day programming tasks. These classes offer methods for manipulating collections, random number generation, date/time facilities, and more. Below, I'll provide an overview of some of the most commonly used utility classes in the java.util package, along with examples…
Logging is a crucial aspect of application development as it helps in tracking the behavior of the application and diagnosing issues. In Java, logging can be done using various frameworks, with the Java Util Logging (JUL), Log4j, and SLF4J (with Logback) being among the most popular. Here’s a tutorial on logging in Java using…
Java introduced method references in Java 8 as a part of the lambda expressions feature. Method references provide a shorthand syntax to refer to methods without having to explicitly invoke them. This can make your code cleaner and easier to read. What are Method References? Method references are a way to refer to a…
Introduction Java 8 introduced significant enhancements to the language, including Streams and CompletableFuture. These features facilitate more efficient and expressive coding, particularly when handling collections and asynchronous computations. Combining Streams and CompletableFuture can lead to powerful and elegant solutions to complex problems. This article explores practical examples of how to combine these two features…
Introduction Java 8 introduced functional interfaces and lambda expressions, transforming the way developers write and approach Java code. A functional interface is an interface with a single abstract method, allowing for more streamlined and functional programming. This article will guide you through the concept of functional interfaces, their significance, and provide step-by-step examples to…
Introduction Lambda expressions, introduced in Java 8, are a powerful feature that allows developers to write concise and expressive code. They enable you to treat functionality as a method argument or pass a block of code around. Lambda expressions are a key feature of functional programming in Java, facilitating cleaner and more readable code,…
Introduction Java 21 introduces a range of exciting new features and enhancements that improve the language’s expressiveness, performance, and developer productivity. This article explores some of the most significant updates in Java 21, complete with practical examples to illustrate their usage. 1. Pattern Matching for switch (Third Preview) Pattern matching for switch enhances the…
Introduction Java 8 introduced several groundbreaking features, one of which is the ability to define default methods in interfaces. This enhancement allows interfaces to include method implementations, providing more flexibility in API design and evolution. In this article, we will explore the concept of default methods, their benefits, and practical examples demonstrating their use.…