Top 20 Spring Data JPA Interview Questions Answers for Java Developers

Hello guys, if you are preparing for Spring and Java developer job interview and looking for common Spring Data JPA interview questions then you have come to the right place. Earlier, I have shared spring boot questions, spring cloud questions, spring security questions, and spring MVC questions and in this article, I am going to share 20 common Spring Data JPA questions with answers. These are simple questions focused on key Spring Data JPA concepts like finder methods, query methods, pros and cons of Spring Data JPA, how to implement Spring Data JPA repository interface etc. If you have done work or used Spring Data JPA in your project then most likely you will be familiar with those concepts but if not then don't worry, you can also checkout these Spring Data JPA courses to learn them in detail. 

Top 15 TensorFlow Interview Questions and Answers for 1 to 2 Years Experienced

Hello guys, if you are preparing for Machine Learning Engineer interviews or a Data Science Interview and looking for popular TensorFlow interview Questions then you have come to the right place. Earlier, I have shared the best courses to learn TensorFlow and Machine Learning and in this article, we are going to share the frequently asked TensorFlow questions for Interviews. These questions cover key TensorFlow concepts and you can use them to revise TensorFlow before your interview. They are good for both screening and Telephonic rounds of interviews. 

Top 15 Node.js Interview Questions Answers for Fullstack Developers

Hello guys, if you are preparing for full stack web developer interviews then you should prepare for Node.js as well, particularly if you are a JavaScript developer. Node.js is one of the most popular terms in the web development community. It is heavily used in server-side development. It can be used with different databases such as MongoDB and SQL. There is a huge demand for Node.js developers in the job market. The interview can be tough because Node.js is wide and a person needs a considerable amount of practical experience to crack it. In the past, I have shared JavaScript interview questions, Angular interview questions as well as React Questions, and in this article, we will discuss the top 15 important and commonly asked Node.js questions with answers.

Top 20 Data Science Interview Questions and Answers

Hello guys, if you are preparing for Data Science interview or want to become a Data Scientist and looking for common Data Science questions then you have come to the right place. Earlier, I have shared Machine Learning Questions, Python Interview Questions, and AI Interview Questions and in this article, I am going to share common Data Science Interview Questions and answers for beginners and people with 1 to 2 years of experienced. There is a good chance that you are already familiar with these questions and can answer all of them if you have worked for a couple of years in Data Science field but if you struggle to answer any questions then you can always join these best Data Science courses to learn and revise those Data Science concepts. 

Top 15 Java NIO, Socket, and Networking Interview Questions Answers for Experienced Developers

Hello guys, if you are preparing for Java developer interview then you may know that Networking and Socket Programming is one of the important areas of Java programming language, especially for those programmers, who are working in client server-based applications. Knowledge of important protocols like TCP and UDP in detail is very important, especially if you are in the business of writing high-frequency trading applications, which communicate via FIX Protocol or native exchange protocol. In this article, we will some of the frequently asked questions on networking and socket programming, mostly based around TCP IP protocol. 

20 Java and Programming Quotes to Motivate Yourself

I always have a strong interest in knowing great peoples of my field like software development and programming. Knowing about them, following them, and reading about them not only gives you immense knowledge but also the motivation ,you need to excel in whatever you are doing. It's the motivation, not knowledge that will propel your career. Knowledge is almost useless without motivation because just knowing is not enough, you need to apply that knowledge, and without motivation, you just can't do that. There are times when programmers also feeling tired and bored. These are the times when you spent hours constantly looking at the computer screen, clicking here and there, surfing the net without doing anything.

What is variable scope and closure in JavaScript? Example Tutorial

Hello guys, if you want to learn about variable scope in JavaScript then you have come to the right place. Earlier, I have shared the best online courses and books to learn JavaScript and in this article, I will explain to you how to declare variables in Javascript and different variable scopes. In JavaScript, variables can be declared using the var, let, or const keywords. It is also possible to declare variables without using any of these keywords. The major difference with different keywords is in the scope of the variables.  Every variable declared in JavaScript has a scope. Understanding variable scope in JavaScript is very important. In this article, we will discuss what is the variable scope and other terms related to it such as closures.

Don't Call System.exit() on Java Web Application in Tomcat - Best Practice

I have recently come across a code snippet, where the programmer was using System.exit() if the application failed to acquire necessary resources after a couple of retries. His reasoning was that the application cannot function if essential resources like the database are not available or there is no disk space to write records in the File system. Ok, I hear you; but System.exit() in Java Web application, which runs inside either web server or application server, which itself is Java program is not a good idea at all. Why? because invoking System.exit() kills your JVM, invoking this from Tomcat or Jetty, will not only kill your application but the most likely server itself. This can be potentially dangerous if that server also hosts other critical applications, which is not uncommon at all.

10 Articles Every Programmer Must Read

Being a Java programmer and Software developer, I have learned a lot from articles titled What Every Programmer Should Know about ....., they tend to give a lot of useful and in-depth information about a particular topic, which otherwise is very hard to discover. In my quest for learning, I have come across some very useful articles, which I have bookmarked for reference and multiple readings. I personally think that all programmers can benefit by reading these articles, which makes me write this post and share all of these "What Every Programmer Should Know" articles with you guys. These are from my personal bookmarks.

Difference between Functional and Non-Functional Requirements in Software development - Example

Gathering the correct and complete requirements is one of the most important things in software development. Incorrect and incomplete requirements are the main reasons why the project fails. If you are in software development, you may have come across terms like functional and non-functional requirements. If you are wondering why a prototype takes 2 weeks but actual application development requires around 3 to 4 months of development; think of non-functional requirement. When someone told you to build software, what they tell you is what that software should do like allow you to trade on a certain market, but they don't tell you about security, performance, load, and other stuff, this is what I called non-functional requirement. 

Top 20 Kubernetes Interview Questions with Answers

Hello guys, if you are preparing for DevOps Engineer interview or a Developer interview, knowledge of Kubernetes is very important given the rise of Cloud computing and cloud native development. If you are looking for frequently asked Kubernetes interview questions to quickly revise key Kubernetes concepts then you have come to the right place. Earlier, I have shared 20 Docker Interview Questions and in this article, I am going to share frequently asked Kubernetes Interview questions with Answers. But, before we get to the 20 most important Kubernetes interview questions, let me tell you more about Kubernetes. In the most simple terms, Kubernetes is actually a bundle of software solutions that allow developers and engineers to scale and service server setups.

How to use @EnableTransactionManagement in Spring Framework and Spring Boot? Example Tutorial

Spring Boot has a lot many annotations within its framework that a person can use. If you are searching for one, you have come to the right place. Needless to say, these annotations are essential for building a Spring Boot web application. Today we will look at an annotation that is widely used for transaction management in spring. So, what's the wait?! Let's start! But, before jumping into the sea of spring, let's first understand what a transaction means in spring and what it signifies. A transaction is used in Spring JPA which communicates to the database. we all know what a transaction represents on a database level. If not, no worries! let us all recall.

How to use Composite Design Pattern in Java? Example Tutorial

Hello Java Programmers, if you want to learn about Composite Design patterns in Java, like how to implement Composite design pattern and when to use it then you have come to the right place. Earlier, I have shared the best Java design pattern courses and in this article, I am going to talk about Composite design Patterns, one of the 24 GOF patterns described in the classic Object Oriented design pattern book.  Composite Design Pattern is a behavioral design pattern from GOF, first described in their classic book design pattern. The composite pattern allows you to build a structure as a tree, which contains both leaf and composites. 

20 Kubernetes Design Pattern Every Developer should learn

Hello guys, if you are deploying Microservices then you may know that Kubernetes is a powerful open-source container orchestration platform that has rapidly gained popularity among developers and DevOps teams. Kubernetes provides a wide range of features and capabilities for deploying, scaling, and managing containerized applications. However, using Kubernetes effectively requires a good understanding of its architecture and design patterns. In this article, we'll explore ten Kubernetes design patterns that every developer should learn. We'll discuss the problems that each pattern solves and how it can be applied to real-world scenarios. By the end of this article, you'll have a better understanding of how to design and deploy your applications on Kubernetes using best practices and proven patterns. 

How to Join Two or More Tables in a SQL query? Left Join Example Leetcode Solution

Hello guys, when it comes to combining two tables in SQL, many programmers don't know that they can use the JOIN clause. In fact, JOIN is there to fetch data from multiple tables together. There are mainly two types of joins, INNER Join and OUTER join. On Inner join, only those records have matching values in both tables, while in Outer join, all records from one table are selected in addition to matching records from other tables. There are two kinds of Outer join in SQL, LEFT OUTER JOIN and RIGHT OUTER JOIN. Both are actually the same thing, which means you can get the same result by using either of the outer joins by changing the table's position from left to right.