7 Free CI/CD and Jenkins Courses for Java Programmers in 2025 - Best of Lot

Hello guys, if you want to learn Jenkins and CI/CD and looking for free resources then you have come to the right place. Earlier, I have shared best DevOps Courses and best CI/CD courses and today, I am going to share best free online courses to learn Jenkins and CI/CD (Continuous Integration and Continuous Delivery). But, before we get to the 7 best free courses that will teach you everything you need to know about Jenkins and CI/CD, let me tell you a little bit about what it really is. You can think of Jenkins as an open-source automation tool that is written in Java and it allows Java developers and DevOps Engineers to create pipelines. 

Top 6 Courses to Learn Data Structures and Algorithms in C++ - Best of Lot (2025)

Hello guys, if you want to learn Data Structures and Algorithms in 2025 then you have come to the right place. This is one topic which I believe every programmer should learn in depth. In the past, I have shared best data structure courses and books which were aimed towards Java developers and in this article, I am going to share best online courses to learn Data Structures and Algorithms for C and C++ developers. But, before we get to the 5 best courses that will teach you everything you need to know about data structures in C and C++, let me tell you a little bit about C, C++, and what role data structures play in these two programming languages.

Top 5 Online Courses to Learn Ethical Hacking in 2025 - Best of Lot

Hello guys, if you want to learn Ethical Hacking in 2025 and are looking for the best resources like online courses, you have come to the right place. Earlier, I shared the best Cyber Security courses, and in this article, I have shared the best Ethical Hacking courses for beginners and experienced IT professionals. If you don't know, Ethical hacking is the process of testing your system's infrastructure or network for vulnerabilities and locating its weaknesses to close those vulnerabilities and make your systems more secure. These are very in-demand skills, and there is a lot of job for Ethical hackers as companies, both big and small are grappling with security threats and always looking to find and close any vulnerabilities they might have. 

7 Best Free Datacamp Courses to Learn Online in 2025 [UPDATED]

Hello guys, if you are looking for free Datacamp courses to learn in-demand tech and data skills like Python, SQL, Data Science, Tableau, Data Analysis, etc then you have come to the right place. Earlier, I have shared, best DataCamp courses for Beginners and in this article, I am going to share the best free Datacamp courses to learn Python, SQL, and Data skills. If you don't know, Datacamp is one of the most popular websites for learning Data skills. Their interactive and hands-on courses make learning really easy and that's why both beginners and intermediate data scientists join Datacamp. 

Top 5 CompTIA Server+ Certification Exam Courses and Practice Tests in 2025 - Best of Lot

Hello guys, If you are preparing for CompTIA Server+ certification and looking for the best online training courses and practice test then you have come to the right place. In the past, I have shared the best online courses to pass CompTIA certifications like CompTIA A+, Cloud+, and Security+  and In this article, I am going to share the best courses, practice tests, and exam simulator to prepare for this prestigious exam. These online courses have been created by experts and thousands of Server+ certification aspirants have joined this course. If you are also serious about passing the CompTIA Server+ exam on the first attempt, you should check out them and enroll in at least one course and one practice test for solid preparation.

Google Protocol Buffers (ProtoBuf) - Best Alternative to Java Serialization

If you have done some serialization works in Java, then you know that it's not that easy. Since the default serialization mechanism is not efficient and has a host of problems, see Effective Java Item 74 to 78, it's really not a good choice to persist Java object in production. Though many of the efficiency shortcomings of default Serialization can be mitigated by using a custom serialized format, they have their own encoding and parsing overhead. Google protocol buffers, popularly known as protobuf is an alternate and faster way to serialize Java objects. It's probably the best alternative to Java serialization and useful for both data storage and data transfer over the network.

Student Management System Project - FullStack Java + Spring Boot + React.js Example Tutorial

Hello Java programmers, if you want to learn Spring Boot and Reactjs and looking for a full-stack Java example or a mini project then you have come to the right place. Earlier, I have shared the best Spring Boot courses, books, and best reactjs courses as well as many courses to learn full-stack development in Java and become a full-stack java developer. In this mini project, you will learn how to create an application that is capable of creating, deleting, updating, and retrieving functions using the Spring Boot, React, and H2 Database. In this tutorial you will create a School Classroom Application that can insert, update, delete and search students. The frontend of the application is developed using Reactjs and also the backend is developed using spring boot. And, most importantly communication between the two platforms will be done using the REST APIs. 

10 Programming Best Practices to Name Variables, Methods and Class in Java - Examples

What's in a name? "A rose by any other name would smell as sweet" is a famous quote from William Shakespeare's classic Romeo and Juliet, but sorry to say, name matter a lot in programming and coding.  It's also said that code is the best document for any software because any other document or comments can become outdated quickly, but code will always tell you the truth. And, If code is the best document then names are the most critical element of it. Every effort, small or big, invested while naming variables or methods, pays in both the short term and long term. In fact, if you ask me just one coding practice to follow, I would definitely recommend giving meaningful names to your variables and methods.

10 Tips to Learn a New Project or Codebase Quickly

One of the main drawbacks of changing a job or changing a project is that you lost all subject matter expertise you have learned by working the last couple of years in that project or domain. It doesn't matter whether you are an expert in a programming language like Java or Python, once you change jobs, you lost your hard-earned experience on projects or domains you are working on. When starting a new job or on to a new project you will rarely be working in a complete greenfield environment. Understanding and mastering an unfamiliar code is a difficult process and it can sometimes feel overwhelming due to the amount of new information you need to take on.

10 Things to Remember while doing Database Server Migration in Production

Hello guys, recently, I have to work on a high profile project which involves migrating a live database from one server to another server as part of their data center exit program. This was one of the critical projects to pull off because we can't afford any mishap or data loss or production outage. There are a lot of things that I learned and would like to share with you guys. All these lessons not just apply to migrate databases like Microsoft SQL Server, Oracle, or MySQL database from one server to another but to any production process, you are migrating from another server. These are the things we learn from experience but as I have said in the past, you can only learn a few things

Difference between Inheritance and Composition in Java and Object Oriented Programming

Though both Inheritance and Composition provide code reusability, the main difference between Composition and Inheritance in Java is that Composition allows reuse of code without extending it but for Inheritance, you must extend the class for any reuse of code or functionality. Another difference that comes from this fact is that by using Composition you can reuse code for even the final class which is not extensible but Inheritance cannot reuse code in such cases. Also by using Composition, you can reuse code from many classes as they are declared as just a member variable, but with Inheritance, you can reuse code from just one class because in Java you can only extend one class because multiple Inheritance is not supported in Java.

Why use Cloud Computing? Advantages and Disadvantages

Hello guys, If you are curious about Cloud computing and why every company, both big and small, is going to be cloud-native, you have come to the right place. In the past, I have shared the best Cloud Computing courses and both free and paid courses to learn about popular cloud platforms like AWS, GCP, and Azure. In this article, I am going back to basics and telling you about what is cloud computing and what benefits it offers. Cloud Computing has been a buzzword in the IT world for the last few years. When it first appeared, like many things, a lot of people has dismissed it as being the next big thing, but cloud computing has certainly lived up to expectations and truly shifted how the Information technology arm of business functions today.

10 Tips to create Maintainable Java Applications

Hello all, if you are in software development then you know that creating an application is easy but creating a maintainable application that can pass the test of time in production is rather difficult and that's the main reason experienced Sofware developers are paid higher salaries compared to many other jobs. In this article, I am going to share with you some tips on creating maintainable Java applications which will help you not just in the new year, but also in all the coming years in your software development career.  One aspect of development, which is often overlooked by developers is to create applications that are both easy to maintain and support. Since software spends 90% of its lifetime in maintenance mode, it's very important that your application is easy to configure, support, and maintain. 

Why Static Code Analysis is Important? Pros and Cons

In the last few years, Software code quality and security have gone from being a “nice to have” to a necessity, and many organizations, including investment banks, are making it mandatory to pass static code analysis tests, penetration testing, and security testing before you deploy your code in production. Static analysis tools like findbugs and fortify are getting popular every passing day and more and more companies are making fortify scan mandatory for all new development.  For those unaware of what static code analysis is, static code analysis is about analyzing your source code without executing them to find potential vulnerabilities, bugs, and security threats.

Top 23 Design Patterns Experienced Java Programmers Should Learn

Hello guys, if you want to learn Design Patterns and looking for a comprehensive tutorial which covers all important object oriented design pattern then you have come to the right place. Earlier, I have shared best Design pattern courses and books for experienced developers and in this article, I will introduce you with 23 common object oriented design patterns for writing better code. Design Patterns are tried and tested way of solving a problem within a given context. They are not invented, rather they are discovered, which is also obvious by use of word pattern. By using design pattern, you take knowledge of all wide communities and can safely use it to solve that problem. At times they might not give you perfect solution, require bit of tweaking, but they certainly provides one of the best solution, as long as you use them properly. While doing object oriented development, they are numerous task which appears quite often e.g. creating objects, structuring code, and implementing different behaviors based on different context.