A blog about Java. Examples for Java design patterns, Java core examples, web frameworks.
Java has long been a popular choice for web development, thanks to its versatility, maturity, and robust ecosystem. With numerous web development frameworks available, choosing the right one for your project can be a challenge. In this article, we will compare five popular Java web development frameworks: Spring Boot, JavaServer Faces (JSF), Micronaut, Quarkus, and … Read more
REST APIs have become the backbone of modern web applications and are widely used to exchange data and integrate different services. However, with the rise of these APIs, security concerns have also increased. To ensure the security of REST APIs, developers must be knowledgeable about the different security concepts and techniques that can be used … Read more
In this article, we have compiled a list of common interview questions related to Java Spring Boot REST API development. These questions cover a broad range of topics, including basic concepts of Spring Boot and RESTful web services, best practices for building and testing REST APIs, and more advanced topics such as authentication and versioning. … Read more
What are the main differences between the Collection API in Java 8 compared to earlier versions? Java 8 introduced several new features, including functional programming support with lambda expressions, the Stream API, and new methods in the Collection interface, such as forEach(), removeIf(), and the default and static methods. What is a Stream in Java … Read more
Monitoring the health of your Spring Boot applications is crucial for maintaining high availability, identifying issues, and ensuring optimal performance. One of the key features provided by Spring Boot Actuator is the health endpoint, which enables developers and operations teams to monitor the health of applications and their dependencies. In this article, we’ll explore the … Read more
n this article, we’ll explore the Java Tree and how to implement binary trees in Java. We’ll also discuss some of the common operations and use-cases of binary trees, making it easy for you to understand and work with this essential data structure. Understanding Java Trees: A Java Tree, also known as a binary tree, … Read more
Are you struggling to identify performance bottlenecks in your Java applications? Are you spending too much time trying to optimize your code, only to see marginal improvements? If so, Java profiling can help. Java profiling is the process of analyzing the runtime behavior of Java applications, with the goal of identifying performance issues and optimizing … Read more
JDK 17: Java 17 New Features – Analysis and Explanations JDK 17 (Java 17) has been released and it comes packed with some exciting new features and improvements. In this article, we will explore the new features of JDK 17 and provide code examples to help you understand them. 1. Sealed classes and interfaces Sealed … Read more
List to Map Conversion in Kotlin In this tutorial, we will explore various methods for converting a List to a Map in Kotlin, illustrated with practical examples. 1. Using associateBy Kotlin offers a straightforward way to convert a list to a Map using associateBy. This method requires a keySelector and a valueTransformer. In the following … Read more
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