In this tutorial, we will learn about the constructor of an object, how to create them, what is the difference between the default constructor and the constructor we define and final what is the overloaded constructor? Definition of the constructor In Java, the constructor is… Read More
Once you’ve created the interface for the Categories section, now it’s time to call the APIs of the API Category Service to add, remove, edit, and display all categories. In this tutorial, I will guide the first step is to display all categories using Angular.… Read More
All objects in Java are defined based on a basic object, java.lang.Object. This Object object will allow Java to handle all objects from the time they are created until they are no longer used. In this tutorial, we will learn more about what I just… Read More
Next to Part 1, let’s take a look at the remaining two scopes of variables in Java, and look at the case of variables with the same name but different in scope, how Java handle that. The variable is inside an object The variable is… Read More
The first part of the Questions Management application that we need to implement is the section that governs which categories the questions belong to. So, in this tutorial, I will start by adding an interface for the management of these Categories. This interface will allow us… Read More
In Java, any variable can have the following scopes: The variable is inside any method. As a parameter of any method. The variable is inside an object (including fields, attributes, and variables that are not static variables). The static variable of a class. In this… Read More
The SonarQube Scanner plugin is a Jenkins plugin that allows Jenkins to interact with the SonarQube server to report quality code in our projects. In this tutorial, I will guide you how to install this plugin. First, you need to login to Jenkins as an… Read More
In the previous tutorial, we prepared all the necessary configurations to build API retrieving all categories from the Core Category Service in API Category Service as: a Category object to contain information about a category, a CoreCategoryService interface, with implementation is the CoreCategoryServiceImpl, is responsible… Read More
In mathematics, we have priority between plus, subtraction, multiplication and division, in parentheses, in Java, there are similar things in priority between operators if they are used in the same expression. This tutorial, let’s learn about the priority of the operators in Java. Java has… Read More
Check out the full series of Questions Management tutorial here. In the previous tutorial, we prepared all the necessary configurations to build the API retrieving all the categories in the MongoDB database: a document Category object containing information about a category, a CategoryRepository to manipulate with… Read More
