What is immutability? The dictionary meaning of this word is literally — not changing over time. In programming language also the word is used for its similar meaning. There are some programming languages where the immutability of the objects is implicit, but for java, it is not the case. …

You will find lots of tutorials and hands-on assignments and POCs for Google cloud and here is a new one from my side. I am new to Google Cloud Platform(GCP), hence trying to explore some of the application-level services. Hence I started with Cloud Function and Datastore. I am using…

I just survived a decade in the IT industry. When I joined my first company after my college graduation, I never thought, I would be sustained this long when I used to see people around me. They were having a pretty strong background, good vision, good plans, etc. …

I have searched a lot to write a test case for DynamoDB APIs in node js with mocha. There are lots of materials available and there are many libraries also provided by many groups or individuals. The main and the important library you can find on the web to write…

I am sharing my experience of learning NodeJS as a Java Developer. First of all its a fun learning NodeJS/JavaScript. Learning the basics of JavaScript(JS) is not the hard part if you are familiar with Java or any other programming language. …

There are lots of blogs and stories on the internet which can give you a good idea of Date-Time API in Java 8, yet here is my attempt to explain it one more time with my understandings. Why Date and Time calculations are important — In today's world of social…

This article is strongly influenced by a book by Jeanne Boyarsky and Scott Selikoff. A Stream in java is a sequence of data. A stream pipeline is the consecutive operations that run on the stream to produce the result. Let's not think of Java for a moment. Let's think about…

Being an admirer of the music and the artists, I always keen to watch some good movies on music or which are on the artists, most of those are satisfying to watch and some of them are inspiring too. I just finished watching the movie ‘Whiplash’ and I would say…

Before seeing what is a functional interface, we will see its history and how programming was done before functional interfaces and lambda expressions were not exist. Anonymous Classes — The concept of anonymous classes is least used and discouraged at a particular time and with the latest features like functional…