Programming and OOP Tutorials

Updated July 7, 2026: Covers Spring Boot 3.3, Java 21 LTS, virtual thread configuration, a sample REST API, and load-testing ...

This is Part 3 SpringBoot Roles and Privileges implementation for our Inventory Management System (InventoryMS). In this tutorial, we would ...

This is Part 3 of our implementation of SpringBoot roles and Privileges for our Inventory Management System (InventoryMS). In this ...

In this tutorial, you will learn how to implement SpringBoot Roles and Privileges. In this part, we would go on ...

In this tutorial, I will explain to you how to deploy Spring Boot REST API with MySQL database to MS ...

Note: this document is live and will continue to be updated while we develop the InventoryMS application This is the ...

In this tutorial, you will learn how to protect some routes in your React application. We would create an Authentication ...

In this tutorial, you will understand the how authentication works between React UI and SpringBoot backend. What You will Learn ...

This is Part 2 of the tutorial on How to a authenticate from React application to Spring Boot API. In ...

In this tutorial, you will learn how to add Spring Security to your Spring Boot REST API and require authentication ...

In this tutorial, you will learn how to create a complete application step by step using SpringBoot and React frontend ...

In this tutorial, I will show you how to filter a Dropdownlist based on another Dropdownlist in React. We would ...

In this tutorial, I will show you how to implement pagination on react table using Material UI.

1. Define the ...
   
   Read More

In this tutorial, you will learn how to create a calculator application in Python using Tkinter module.

1. Plan Your ...
   
   Read More

This is Part 1 of the Series: Software Design Patterns. In this tutorial series, I would explain to you the ...

In this tutorial, you will learn how to add role-based authorization to a Spring Boot application. This tutorial would simply ...

In this tutorial, you will learn how to build an SDK – step by step. We would build an SDK ...

In this tutorial, you will learn how to create an SDK from the scratch. We would build an API using ...

In this tutorial, you will learn about build tools. We would discuss some of the popular build tools out there ...

In this tutorial, you will understand Github action and how to set it up. We would create a simple Spring ...

In this tutorial, you will learn how to create and publish your first npm package step by step. Prerequisite

...

Read More

In this tutorial, you will learn Method 2 of how to integrate the AdminLTE template with Angular application. In Method ...

FleetMS version 3 kicks off today! Here’s the technology stack for FleetMS version 3.

• Angular  for UI development
• Node.js ...
  
  Read More

In the previous two tutorials we covered how to setup local Kubernetes (Minikube) and deploy a SpringBoot application. You can ...

In the previous tutorial, you learnt How to Setup a Local Kubernetes Cluster (Minikube) and deploy a SpringBoot application. You ...

In this tutorial, you will learn how to easily setup local Kubernetes cluster. Then we would create a simple Spring ...

In this tutorial, I will take you step by step how to dockerize SpringBoot with MySQL database. And it’s quite ...

We would not complete this series on How to Implement Pagination in Spring Boot. You can find Part 1 here ...

In this tutorial, you will learn how to easily implement pagination in Spring Boot with Thymeleaf page and JpaRepository. This ...

In this tutorial, we would learn how to deploy a Spring Boot application to a local Kubernetes cluster. This would ...

This is a simple and clear solution to the Queen’s  Attack 2 problem in HackerRank. It take just three steps ...

In this tutorial, you will learn about migrations and how to use it to simplify database operations for your applications ...

In this step by step tutorial, you will learn how to secure your REST API endpoints using Auth0.

1. Create ...
   
   Read More

This is Season 1 of building a complete application in ASP.NET C# using SQL Lite. All the parts are provided ...

In this part we would cover user registration, user login and profile. We would cover the following:

1. Add Firstname ...
   
   Read More

In this part, we would be setting up  the authentication, authorization, user login, registration and profile. We will cover the  ...

This is part 7 of our complete application with ASP.Net, C# and SQL Lite. In this part, we would be ...

This is part 3 of our complete application in ASP.NET with C# and SQL Lite. In this part we would ...

This is part 4 of our complete application in ASP.Net, C# and SQL Lite. In this part, we would configure ...

In this part we would work on generating all our controllers. The code generator would help use  do the following: ...

In this part, we would plan the navigation of the application. We also setup the navigation sidebar on the left ...

In this tutorial we would build a complete application with ASP.NET and C# Programming Language. It would be a Hospital ...

This is Part 2 of our complete application with Visual Studio, ASP.Net, C# and SQL Lite. In this part we, ...

In this tutorial, you will learn how to setup and use the top 5 UI components in Angular Material, Primeng ...

This is a beginner tutorial on how to build and deploy microservices using Docker-Compose. But first, we’ll learn what docker-compose ...

In this tutorial, you will learn step by step how to Dockerize your Spring Boot application. We would create a ...

I would show you several way you can pass variables from one component to another in Angular. We would cover ...

In this tutorial, you will learn about GraphQL and how to use it. This would be useful to you if ...

In this tutorial, you will learn how to build a WordPress plugin from the scratch! This would be a practical ...

In this tutorial, you would learn how to use layout and content page in a Spring application. This is also ...

We’ll outline the components of a Messaging Architecture based on RabbitMQ. We would examine terms including: Producer, Consumer, Exchanger, Routing ...

Thanks for visiting my page! This article outlines my activities during my 1 year National Youth Service Corps(NYSC) assignment in ...

Thousands of Hungarian users on LinkedIn wake up to find that their location has changed from Budapest, Hungary to Brisbane, ...

In this tutorial, we would learn how to install and setup Failover cluster in Windows Server 2019 step by step ...

In this tutorial, we would learn how to configure iSCSI disks in Windows Server 2019 and setup a iSCSI target ...

In Part 1, we set up our a domain and configured a domain controller. In this part, we would look ...

In this step by step, I will teach you how to setup active directory directory services with a domain using ...

If you would like to learn Angular while working on an interesting project, then you are welcome! This would be ...

This is  Part two of out Quiz App Tutorial in React. Please see Part 1 if you have not. In ...

In this tutorial, I would take you through building a simple quiz application in React. As we go through, I ...

In this tutorial, I would teach you how to create a complete DevOps pipeline for free. We would push a ...

We would learn about 7 database patterns for Microservices. The include:

1. Database per Service
2. Shared database
3. Saga
4. API Composition
...

Read More

If you remember from Tutorial 2, we stored our password in MySQL database in plain text. Now, this is not ...

In this Tutorial, would see how to add custom Login Form. So instead of using the generated form we’ll build ...

This tutorial follows from Part 1. In this tutorial, you would learn how to call the PHP API from a ...

In this article, I would explain step by step, how to enable Auditing in Spring Boot application. We would consider ...

Good to know you’ve completed Parts 1 to 16! Thumbs up to you! Otherwise, you can see the links below ...

We would continue from Part 21. You will learn how to update a record and delete a record. You will ...

I’m happy, that finally we have a complete tutorial that addresses the challenges faced by many programmers. Entity relationships(@OneToMany and ...

First let me say that if you have gotten to this point successfully, congrats! and thumbs up to you! You’ll ...

Now we continue with Part 13.
We are still working with the GET requests

• Part 1 to 7 – ...
  
  Read More

This is Part 2 of Plotting Tutorial in Python with Matplotlib.pyplot. You can find Part 1 here. Here, we cover ...

In this practical lesson, I would teach you how to plot in Python. You will learn about plotting in Python ...

If you are a programmer, then I have some good news for you! This applies if you are a Software/Application ...

In this short lesson, I would teach you how to perform linear regression in Python and R. It’s quite easy ...

This course kicks off August 1, 2019. It will run for 6 to 8 weeks. Download Course Outline in Excel ...

This tutorial follows from the Part 1. Here, we would see how to use mySQL database. We are going to ...

I would teach you how to work with Spring Security.

• Tutorial 1 – Introduction to Spring Security 
• Tutorial 2 ...
  
  Read More

In this lesson, I would explain to you how relationships works in hibernate. Then I would give you a practical ...

I would teach you how to make two microservices communicate. This would be step by step. You can watch the ...

1. Introduction to Thymeleaf (Video) In this walk-through, we would build an application to store student records. Users would be ...

In this series, I am going to teach you how to build a data-driven page. Watch the video lesson We ...

This procedure teaches you how to perform CRUD operation (Insert, Update, Select and Delete) in Spring MVC. Source codes is ...

We would build a Microservices in Java Step by step. Find the Source Codes here This microservice is based on ...

Find the Step by Step Procedure here Final AdmissionsResource File @RestController @RequestMapping("/admissions") public class AdmissionsResource { @Autowired private RestTemplate restTemplate; ...

A Receiver Operating Characteristics (ROC) Curve is used to describe the trade-off between correct classifications and wrong classifications. The ROC ...

You can find Question 1 to 10 here. So let’s get started! 11. What is Multivariate Linear Regression? This is ...

I’m providing set to data science question and answers. The answers would be clear and brief for anyone to understand ...

This tutorial would cover Exploratory Factor Analysis. We would cover the following sub-topics:

1. What is Factor Analysis(FA)
2. Difference between ...
   
   Read More

Bayesian Inference is simply a way of making statistical inference by applying Bayes’ Theorem. Assuming there is a particular hypothesis ...

In this short write-up, I would explain to you these important trends in IT. The interesting thing is that they ...

I’m going to explain microservices to you based on the following sections:

1. What are Microservices?
2. Benefits of Microservices
3. How ...
   
   Read More

Bayes Rule is based on Conditional Probability which we have been discussing in the previous 3 lessons.

• Conditional Probability ...
  
  Read More

In the previous lesson(Introduction to Bayes’ Rule), we saw how Bayes’ Rule can be applied to medical diagnosis. So in ...

In this short lesson we would understand how to use the Multiplication Law in Conditional Probability. You may want to ...

In this lesson, we would examine Law of Total Probability. We looked Multiplication Law previously. I would state this law ...

I assume you have a basic knowledge of Probability. For example, if there a 3 red ball and 2 blue ...

We are going to cover the concept of dependency injection (DI) in a very simple  and clear manner. First let’s ...

We would examine all the differences between List and ArrayList in Java. First, I would like to say that both ...

I would would cover everything you need to know about SQL Joins in this lesson. And you will see it’s ...

In this simple tutorial, we are going to learn how to perform Principal Components Analysis in Python.  This tutorial would ...

This is a series of Video lessons for the 2019 Python Programming Tutorial Series. This would run between January and ...

We cover the following

1. Introduction to Ford-Fulkerson Algorithm
2. Introduction to Residual Graphs
3. About Residual Graphs
4. Augmenting Paths in Residual ...
   
   Read More

[HDquiz quiz = “16”] ...

I have created these 15 Questions Python Programming Quiz to help you evaluate your knowledge of Python Programming Start Quiz ...

Pointers in C++ is one of the core concepts that you need to learn. This is because it is a ...

We are going to create these various collections data types in Python and also outline the differences between them. Find ...

The code below shows how to create a class in Python. You can copy and modify freely for your personal ...

In this lesson, we would cover the following:

1. Object Oriented Programming Terms
2. Creating a Class in Python
3. Inheritance: Creating ...
   
   Read More

This is the first in the series of beginner-to-expert tutorials and Python and Jupyter Notebook. In this tutorial (Python-Jupyter Notebook ...

We would cover the following:

1. What is Abstraction?
2. Abstract Classes and Methods in Java
3. Example of Abstract Class in ...
   
   Read More

We would cover the following:

1. What are Interfaces in Java
2. What are Differences between a Class and an Interface
...

Read More

I would start with a brief review of SVD and then gradually ease into Higher Order SVD.  As usual, I ...

Singular Value Decomposition (SVD) is a dimensionality reduction technique similar to PCA but more effective than PCA. It is considered ...

AVL trees are self-balancing Binary Search Trees (BST) that was invented by Adelson, Velski and Landis. Let’s consider the following: ...

We would go through a simple tutorial on how to build an API in Visual Studio (Step by Step) using ...

In this Tutorial 3, we would write a second program and also understand java basic syntax. In Tutorials 1 we ...

Fibonacci Numbers or Fibonacci Series is a set of numbers where the next number in the series is the sum ...

You don't have to spend your time writing stored procedures. You simply generate them. By the way writing stored procedures ...

In this lesson, you will learn how to connect Netbeans IDE to Microsoft Access database and used MS Access as ...

So we would be talking about certifications. My name is Kindson The Genius and I would be happy to let ...

In this tutorial, I would explain to you how to generate stored automatically from Visual Studio without having to write ...

If you are looking for a place to learn Python, this is the right place. Python would top the list ...

If you want to learn Java as a beginner to a Java Programming expert, this is the right place. The ...

To submit a question, the question (and answer) in the comment box below👇👇👇👇 What is Computer Programming? Computer Programming is ...

A delegate in C# can be conpared to a function pointer in C and C++. It allows programmers to specify ...

In this lesson, we would cover the basics on threading in C# and how to implement threading in C#.

Content

1. Introduction to ...
   
   Read More

Hello, good to see you here! Its good to know that you want to learn Java and be sure that ...

This is a simple video on how to export MS Excel table to MySQL Databases;

Get the Excel File Here:

Watch ...

You can watch the video of this explanation here: Video
Many person in the field of IT don't get as productive ...

This is a list of the very best Java Tutorials I've had to make. The reason I rate this tutorials ...

Coding is fun! Have you heard this expression sometimes? Another one is, 'coding is for the noble-minded' or 'coding is ...

In this tutorial, we would examine how to use Python to create an excel csv file, write data into it, ...

In this lesson I would teach you how to create a simple calculator in the Python Programming Language. Python 3.6 ...

For all lovers of the Python Programming Language, I would like to share a program to solve simultaneous equation(system of ...

In this lesson, we are going to discuss the concept of polymorphism in the Java programming language.



What is Polymorphism
Polymorphism means ...

In this lesson we would examine the abstract keyword, how to use it and when to use it.
What is Static ...

In this lesson, we are going to talk about Abstract Classes.
But before we discuss abstract classes, let us consider a ...

In the first part of the Object Oriented Programming lessons, you learnt:

• How to create classes
• How to create a subclass and ...
  
  Read More

In this lesson, we would understand the idea of object oriented programming and then we would show some examples of ...

In this lesson, I will show you how to install Python 3.6 and set up Django 2.0 in 6 easy ...

In this blog, I am going to address some of the typical problems encountered by  programmers who try to connect ...

In this tutorial, I will teach you an easy way to set up Python and Django on Window.

With Python, you ...

Updated July 5, 2026: Restructured with table of contents, +/- button code, division fix, and error handling. Completes the two-part ...

This lesson follows from the Lesson 2 of the Java Programming Tutorial for Beginners. So if you have not ...

Updated July 5, 2026: Restructured for clarity, added table of contents, FAQ answers, and links to Part 2. Screenshots and ...

This is Lesson 2 of the Java Programming Tutorials for Beginners, and in this Lesson, you would write your first ...

I could tell you that the reason many have not become good computer programmers is that the fail to obey ...

This is the first part on the series of easy tutorials aimed to help Java beginner Java programmers to get ...

The interesting thing is that programming is not as tasking as it is portrayed in some books and online materials ...

These three concepts are sometimes considered as the building block of Object Oriented Programming(OOP). We cover the following:

1. Encapsulation
...

Read More

The concept of Data Structures is a very important concept in modern computer science. So, in this course we would ...

This is the second part of our comparison between Scala and C# Programming Languages In this part we are going ...

This is an assignment given to MSc. Students of the University of Port Harcourt as well as the Rivers State ...