February 2025 – Natan Code

How do @Input and @Output work in Angular?

In Angular, @Input and @Output are essential decorators that facilitate communication between components. They allow data to be passed from a parent to a child component (@Input) and events to be emitted from a child to a parent component (@Output). @Input It allows the child component to receive values from the parent component. The parent…

What is Shallow Copy and Deep Copy in Java?

When developing software, there may be situations where it is necessary to create copies of objects to prevent unwanted behaviors, whether to avoid different parts of the system modifying the same object or for any other reason that prevents undesired behavior. Java provides the Cloneable interface, which allows object copying. There are two types of…

What is Factory Method?

The Factory Method is a creational design pattern that provides an interface for creating objects in a superclass but allows subclasses to alter the type of objects that will be created. In addition to the use of polymorphism, it is possible to create either ProductA or ProductB, depending on which factory is being used. The…

Why use Abstract Classes in Java?

Abstract classes in Java are templates that cannot be instantiated directly and may include abstract methods (without implementation) and concrete methods (with implementation). They are used to define common behaviors that subclasses must implement while sharing reusable code. Abstract methods act as placeholders, enforcing a contract that subclasses must fulfill. Let’s look at an example.…