design pattern Archives

Java Builder pattern examples

February 28, 2025March 18, 2016 by mkyong

The Builder Pattern in Java is a creational design pattern that helps in constructing complex objects step by step. Here are three examples of the Builder pattern in Java: 1. Building a User Profile This example models a User with optional fields using the Builder Pattern. User.java package com.mkyong.builder; class User { private final String …

Adapter Design Pattern

August 30, 2012September 22, 2008 by mkyong

Adapter , Adapter , Adapter ~ Actually Adapter design pattern can consider as a simple conversion program / class. It usually used to make two incompatible interfaces or classes to work together. Please review below Adapter design pattern image draw by me, a bit ugly 🙂 Case Study Company A developed a program in Java …