Spring 事件监听原理 基于 SpringBoot-3.1.2 Spring 事件机制主要用于业务编… Read More

The best practices deployed by experienced object-oriented software engineers are represented by design patterns. Design patterns are approaches to… Read More

While working on different Java apps, there arises the concept of optimization. It is essential to maintain the cleanliness of the code, and it also doesn’t have any defects and is… Read More

Advance Java Advanced Java” typically refers to a higher level of Java programming that goes beyond the b… Read More

In the realm of software development, design, and architecture play pivotal roles in creating robust, scalable, and efficient systems. Whether you're an aspiring software engineer, an experi… Read More

All the Micronaut routing annotations (@Delete, @Get, @Head, @Options, @Patch, @Put, @Post, @Trace) support multiple URI templates.   Example@Get(uris = { "/{employeeId}", "/by-id/{em… Read More

Quick Summary: Creational design patterns in Java encompass Singleton, Factory Method, Abstract Factory, Builder, and Prototype. These patterns provide flexible and structured approaches to… Read More

The story of small FixedSizeCollection types in Eclipse CollectionsPhoto by Edward Howell on UnsplashSometimes, You’re on Your OwnEvery once in a while, we are required as ap… Read More

Design patterns are a set of best practices that have been developed over time to solve common problems in software development. They provide a way to solve problems that are often encounter… Read More

In Java 5 many concurrent collection classes are added as a thread safe alternative for their normal collection counterparts which are not thread safe. Like ConcurrentHashMap as a thread sa… Read More

Writing a Java program to reverse a string using a recursive method or using iteration is one Java interview coding question asked quite frequently along with some other popular questions l… Read More

Complete HackerRank Java Programming SolutionHello Coders! In this post, you will find each and every solution to HackerRank Java Problems. After going through the solutions to these python… Read More

Introduction to Kotlin Empty List Kotlin empty list is a generic ordered collection element. It contains two types of lists, i.e., mutable and immutable. The read-only list is created by us… Read More

The most important aspect of developing an Android app is its performance. Users are likely to reject your application if it is slow. The better your app performs, the more likely it is to s… Read More

依赖管理 在我们的pom文件中最核心的依赖就一个： org… Read More

 In this post you will know 22 most asked core java interview Questions and answers for java developers who are having 1 to 4 years of experienced.When you are attending for Java interv… Read More

Approach 1: Generate a random number between 0 and size of set and return the element by iterating random number of times.public static T getRandomItem_approach1(Set set) {if (set == null ||… Read More

基础知识 Java 的内存分配简述 image.png 方法区（non-heap）：Ņ… Read More

What is Scala?Scala is a type-safe JVM language that incorporates both object oriented and functional programming into an extremely concise, logical, and extraordinarily powerful language.Sc… Read More

Explain the creation of a thread-safe singleton in Java using double-checks locking Singleton is made with double checked rushing as before Java 5 acts as an broker and it’s been poss… Read More

This is a simple example of how to use Google Guice , with Jersey to create JAX-RS web services , which can be deployed to any servlet container like Tomcat , Jboss , GlassFish etc . We will… Read More

What are design patterns?Design patterns are documented tried and tested solutions for recurring problems in a given context. So basicallyyou have a problem context and the proposed solution… Read More

In the previous part Android Integrating PayPal using PHP, MySQL – Part 1, we have covered building the PayPal server side part i.e creating mysql database and writing the PHP servic… Read More