Javarevisited

The Law of Demeter also known as  the principle of least knowledge is a coding principle, which says that a module should not know about th...

Hello guys, if you want to learn Design Patterns and looking for a comprehensive tutorial which covers all important object oriented design ...

This is the second part of the Java tutorial to show how to design Vending Machine in Java. In the first part , we have discussed the probl...

Knowledge of Object-oriented design principles and various OOP design patterns is a must for any experienced Java developer. It helps them ...

How do you design a Vending Machine in Java? is one of the popular Java interview questions mostly asked at Senior level Java developer In...

The Object-Oriented Design Principles are the core of OOP programming, but I have seen most of the Java programmers chasing design patter...

Hello guys, today, we'll talk about design patterns and some of the best online courses to learn design patterns in Java from scratch. ...

Favor composition over inheritance is one of the popular object-oriented design principles, which helps to create flexible and maintainable...

Observer design pattern in Java is a fundamental core Java pattern where Observe watches for any change in state or property of Subject. ...

Factory design pattern in Java one of the core design pattern which is used heavily not only in JDK but also in various Open Source frame...

Builder design pattern in Java is a creational pattern i.e. used to create objects, similar to factory method design pattern which is ...

Singleton design pattern is one of the most common patterns you will see in Java applications and it’s also used heavily in core Java libr...

Spring Setter vs. Constructor Injection Spring supports two types of dependency Injection, using a setter method, e.g. setXXX(), wher...

Hello guys, managing transaction in a distributed system like Microservices is very challenging and if you don't have a proper approach ...

Hello guys, if you are using Microservice architecture and want to learn about different Microservice design patterns and principles t...

Design patterns and software design questions are an essential part of any programming interview, no matter whether you are going for a J...

Singleton class is quite common among Java developers, but it poses many challenges to junior developers. One of the key challenges they fa...

As a Java programmer, you've likely encountered the term "Dependency Injection" (DI) in your development journey. Dependency ...

Thread safe Singleton means a Singleton class that returns exactly the same instance even if exposed to multiple threads. Singleton in Jav...

Singleton pattern  vs   Static Class (a class, having all static methods) is another interesting questions, which I missed while blogging ...