it's not about being the best it's about being better than yesterday
Over the years, there were many competing approaches to data storage and querying. The oldest and best-known database is a relational database, where the data is organized into relations called a table. To overcome the drawbacks of Relational Database like scalability, a document model database is introduced the term NoSql got famous. The term NoSQL…
A database is a collection of data, arranged in such a way that you can access and manage it easily. The database is vast topic concepts like index, ACID, CAP theorem, types of databases, normalization, Sharding, Consistency, MapReduce, Eventual Consistency is some of the interesting topics in this field. This blog will be a series…
In Java,we use these keywords in our development all the time and somehow never realize in which situation we get a compile error until the intellisense prompts us or when we are asked question in interview about it.So let’s see both the keywords in detail. Final keyword can be applied to a 1.A class 2.A…
This post is about my journey with android development and how I learned and how you can learn at least to develop basic android apps. What gets me started is this course of udacity. This is a free course from google team best suited for beginners I learned the entire basics from here. This course…
A few days back, while reviewing a PR of one of my colleagues I saw there were around 9-10 migration files of which 2 were of new table addition and the remaining were column addition to the table. Ideally, this should not happen but this is not an ideal world, we may forget to include…
Have you encountered a codebase where a single class/module doing so many things and any small change in a module breaks another and you think to yourself how this happened, if only you knew how to prevent this in the first place? Or a case when a senior developer reviews your PR and says move…
If you have an app that retrives data from firebase, then 9 out of 10 times, we have to show the latest data on the top. This helps in maintaining user engagement as every time user opens he will find a new article/post etc as per your app. I recently made a quote app, where…
Just revisiting and explaining myself Polymorphism concept here through a blog post. The words Polymorphism means multiple forms. In Java ,Polymorphism means multiple forms of an object. We shall divide this article into 3 sections. 1.Syntax 2.Calling a variable polymorphically. 3.Calling a method polymorphically. 1.Syntax Now in polymorphism in Java, the thumb key rule to…
Constructors are used every time to initialize instance variables. There are some additional rules associated with constructors that are often asked in interviews.Hence revising those here through a blog post. 1.A constructor is used to initialize instance variables. 2.When an object of an class is created,JVM goes to the class and searches for that matching…
I have recently encountered this method, which saved my time and helped me follow the DRY principle Use case: Consider a scenario, you have a list of trains and you have to apply filters on like depature_time, arrival_time, train_number, arrival_station, depature_station, number of coaches, etc. For that, you have to write interaction. The input will…