Cassandra and MongoDB are both “NoSQL” databases, but the reality is that they are very different. They have very different strengths and value propositions – so any comparison has to be a nuanced one. Let’s start with initial requirements… Neither of these databases replaces RDBMS, nor are they “ACID” databases. So If you have a...

An identifier is a name given to entities like class, functions, variables, etc. It helps to differentiate one entity from another. Rules for writing identifiers Identifiers can be a combination of letters in lowercase (a to z) or uppercase (A to Z) or digits (0 to 9) or an underscore _. Names like myClass, var_1 and print_this_to_screen,...

Method overriding is one of the ways in which Java supports Runtime Polymorphism. Dynamic method dispatch is the mechanism by which a call to an overridden method is resolved at run time, rather than compile time.When an overridden method is called through a superclass reference, Java determines which version(superclass/subclasses) of that method...

Why is TypeScript developed while having JavaScript? When JavaScript was developed then the JavaScript development team introduced JavaScript as a client-side programming language. But when people were using JavaScript then developers get to know that JavaScript can be used as a server-side programming language also. But When JavaScript...

The entire tech world is debating about the consequences of artificial intelligence and the part AI is going to play in shaping our future. We see people out there debating all the time on whether Artificial Intelligence is good or bad for our future, how will it impact our lives?, is it really safe to be dependent on any technology so much? and...

Microsoft has restructured its Azure certifications into a role-based model that it states will more directly focus on the building of skills and knowledge aligned to job roles.  This change was made after engaging their tech community and identifying what is required to support those job roles. The modifications to the certifications have...

What is Actions class in Selenium? Let us start by taking a look at the information shown by intellisense for the Actions class. You can see this by hovering over Actions class in any IDE, a pop up menu should open up as shown below. The user-facing API for emulating complex user gestures. Use this class rather than using the Keyboard...

Efficient Ways to Handle Windows and Web-based Alerts/Popups in Selenium WebDriver: In the previous tutorial, we focused our discussion on different types of waits provided by the WebDriver. We also discussed various types of navigation options available in WebDriver. Moving ahead in the Selenium WebDriver Tutorials, we will discuss...

AWS certifications are one of the most demanded certifications in the IT market today and it is expected to rise exponentially in the coming years. This AWS Certification blog will talk about benefits of AWS certified, career paths and Job opportunities, along with best recommendations on how you can prepare for AWS exams. Being the most...

A Detailed Overview  In the 21st Century, Computing world has experienced huge demand and innovation in terms of development and technology. Many platforms have proved themselves as an important resource to make things easier for humans. In addition to the above, there are few technologies which are defining the path which is leading our...