Know your next interview question. — I have seen a lot of interviewers asking for the internal working mechanism of the hashmap. If you know the complete internal working of one of the map implementations, it becomes easier for you to understand the other classes of the map interface. So thru this article, we’ll see how…

Must Know Concepts for Designing Scalable, High Performant Systems. — In this article, we’ll learn why we should use proxy servers and how they can help in scaling and making high-performant systems. What Is a Proxy Server? A proxy server is a server that sits between the client machine and the backend servers. It is used to facilitate security, administrative control, or caching service, among…

Everything about Blocking and Non-Blocking calls — Sync and Async APIs are two very important concepts that come to mind while designing the high performant applications. One should be very clear with the sync and async concepts, their benefits, and their disadvantages. In this article, we will learn the Sync and Async APIs and callbacks. Synchronous API: If an…

A shell built-in command that reads and executes the file. — Linux is the most widely used Operating System in the world. If you haven’t worked with Linux previously, initially it seems complicated but it is not, and learning Linux is as easy as any other Operating system. This article covers one of the important built-in commands in depth — source. …

Provides an interface for creating objects in a superclass. — In this article, we will see what is the intent of the Factory design pattern, what problems it solves, and its applicability. There are different creational design patterns and they have their own intent and applicability. Creational design patterns provide various object creation mechanisms, which increase flexibility and reuse of…

Optimize Your Application Code by Using New Java 8 Features. — Hello Everyone, in the last article, I covered a very important Java 8 feature — Stream APIs. Our focus for this article is to cover the most frequently used stream methods starting from creation to parallel execution. …

Optimize Your Application Code by Using New Java 8 Features. — Hello Everyone, in this article, we are going to have a look at some of the core concepts of Stream APIs. I have already covered Java 8 features in detail in my previous articles. …

Secrets That You must know. — Are you looking for a new job opportunity or want your LinkedIn profile to be noticed by the recruiters? If the answer is yes then this article is for you. Throughout this article, I’ll discuss ideas that you can use to optimize your LinkedIn profile. A couple of years ago…

Optimize Your Application Code by Using New Java 8 Features. — Hi friends, this article is a continuation of the Java-8 Features series. We will go thru the functional Interface in this article. You can refer to the other Java-8 articles that are already covered in this series: JAVA 8 FEATURES — INTERVIEW QUESTIONS — STATIC & DEFAULT METHODS, AND REFERENCES …