The Builder design pattern is a creational design pattern that is used to create the objects (complex objects) step by step and then finally return the final object with the required attribute values. It allows us to create different types of objects using different attributes, depending on our requirements. Why to use Builder design pattern… Read More »
Java Memory management in Java refers to the process of handling computer memory (RAM) effectively and efficiently to store and manage objects created during the execution of a Java program. It involves allocating memory to new objects when they are created and freeing up memory from objects that are no longer needed (garbage collection) to… Read More »
Factory Design Pattern is a way of creating objects without directly specifying their exact class. Instead of creating objects using the new keyword, we hand over the object creation process to a separate factory class. This factory class is responsible for creating instances of different sub-classes or classes based on certain conditions. It helps us… Read More »
YAML stands for YAML Ain’t Markup Language also know as Yet Another Markup Language, It is a popular configuration format used to define application properties and settings in a more human-readable manner. It is an alternative to the traditional properties file format (.properties), commonly used in Java applications. In this tutorial, we will learn to… Read More »
The singleton design pattern restricts a class to having only one single instance and provides a global point of access to that single instance. In other words, A singleton class must return the same instance no matter how many times an application requests it. i.e., the same single instance should be used by all the… Read More »
A string is an object in Java that represents a sequence of character values. Strings are immutable, which means once they are created, we cannot change their value. It is recommended to use the char[] array for storing passwords over strings in Java because of following reasons: 1. Strings are immutable In Java, the memory… Read More »
The SOLID Design Principles are an object-oriented approach to software applications that has changed the way object-oriented applications are written by ensuring modularity, easy maintainability, easy understanding, easy to debug and refactor etc. The acronyms for SOLID principles are following: SOLID Principles Java Let us understand each of the Solid Design Principles Java with the… Read More »
RestFul APIs RestFul APIs are the interface that two computer systems use to communicate and exchange data over the internet using HTTPS ports. The APIs that follow the REST architecture design paradigm are called Rest APIs. In this article, we will create a category API for our blog application. To learn more about the Category… Read More »
The Bean Validation API is used for the validation of constraints on an object model using annotations. It can be very useful for validating the length, format, regular expressions, etc. of an object model. By default, bean validation is a Java specification; we need to explicitly provide its implementation. Basics of Bean Validation API In… Read More »
The ModelMapper is a library that is used for converting/mapping two similar object models to each other in a simple and easy way. It is used when the two models have similar data, but their structures and use cases are different. ModelMapper allows us to convert one model to another without affecting the original object… Read More »