Reading Time: 3 minutes Java is based on OOPS concepts and abstraction is one of its feature. So by using interfaces in Java, we achieve abstraction. Like a class, an interface can have methods and variables, but the methods declared in an interface are by default abstract (method signature without body).
Reading Time: 2 minutes Having trouble in keeping multiple versions of Java in your single system? You have approached at the right place for seeking the solution. In this blog, we will learn how to keep multiple versions of java in your system and how to switch between them as per your convenience. Before moving forward, let’s have a basic understanding of what is SDKMAN?
Reading Time: 2 minutes Hello readers, as you have visited here, you must be aware of Interfaces in Java. Before Java 8, all methods defined in an interface are public and abstract by default. After Java 8, there were certain enhancements in interfaces. Amongst all the enhancements in Java 8, one of them is “Functional Interface”. What are Functional Interfaces? In Java, the term functional interface refers to those Continue Reading
Reading Time: 3 minutes In our previous blog – Future vs CompletableFuture – #1, we compared Java 5’s Future with Java 8’s CompletableFuture on the basis of two categories i.e. manual completion and attaching a callable method. Now, we will be comparing them on the basis of next 3 categories i.e. Combining 2 CompletableFutures together Combining multiple CompletableFutures together Exception Handling Let’s have a look at each one of Continue Reading
Reading Time: 4 minutes This is Part 1 of Future vs CompletableFuture. In this blog we will be comparing Java 5’s Future with Java 8’s CompletableFuture on the basis of two categories i.e. manual completion and attaching a callable method. What is CompletableFuture? CompletableFuture is used for asynchronous programming in Java. Asynchronous programming is a means of writing non-blocking code by running a task on a separate thread than Continue Reading
Reading Time: 3 minutes Dr. Venkat Subramaniam celebrates his 50th anniversary with distributing his smiles throughout the world’s Java User Groups (JUG) meetups, conferences, and events. Recently, he was in India and Delhi-NCR Java User Group organized one stop meetup for him. Needless to say, core to our culture of knowledge sharing caring, Knolders were a part of the event. In meetup, Venkat spoke about Designing Functional Programs Java 8 streams and why functional programming is Continue Reading
Reading Time: 4 minutes Let’s first have some basic understanding of Apache Ignite and then we will look more into its life cycle with the help of a demo application. Apache Ignite is an in-memory computing platform that is durable strongly consistent and highly available with powerful SQL, key value and processing APIs. Features : Durable Memory : Apache Ignite is based on the Durable Memory architecture that allows Continue Reading
Reading Time: 2 minutes Micro-services architecture is being widely adopted and guess what, Lagom is the most efficient way to achieve it. While creating micro-services, we usually need to interact with other micro-services and consume their data. So the idea behind this blog is to guide you through the steps needed to integrate an unmanaged service. Apparently, Integrating an external API in Lagom is challenging at first but it Continue Reading
Reading Time: 3 minutes So, You want to integrate your project to SonarQube for managing the source code quality of your project. That’s indeed a wonderful idea. If you are wondering and excited to learn How to go about it, just keep calm and sit back, I will take you through the same. I am very certain that after this blog you will be able to integrate your project Continue Reading