Map Interface in Java
In Java, the Map interface is used to store key-value pairs. It is part of the Java Collections Framework, which provides a comprehensive set of interfaces and classes for handling…
Set Interface in Java
In Java, a Set is an interface that defines a collection of unique elements. A Set cannot contain duplicate elements and it is an unordered collection. It is part of…
List Interface in Java
The List interface in Java is a part of the Java Collections Framework, which provides a way to store and manipulate a group of objects. A list is an ordered…
Collection Interface in Java
The Collection interface is one of the most important interfaces in the Java Collection Framework. It provides a unified way of representing collections of objects in Java. The Collection interface…
Collection add() Method in Java with Examples
The add() method in Java is a part of the Collection interface, which is a member of the Java Collections Framework. This method is used to add an element to…
Visitor Design Pattern
The Visitor design pattern is a behavioral design pattern in Java that is used to separate an algorithm from an object structure on which it operates. It allows new operations…
Template Method Design Pattern
The Template Method pattern is a behavioral design pattern that defines the skeleton of an algorithm in a superclass but lets subclasses override specific steps of the algorithm without changing…
Strategy Design Pattern
The Strategy Pattern is a behavioral design pattern that allows you to define a family of algorithms, encapsulate each one as an object, and make them interchangeable at runtime. In…
State Design Pattern
The State design pattern is a behavioral pattern that allows an object to change its behavior when its internal state changes. This pattern is useful when we have an object…
GoF (Gang of Four) Design Pattern
GOF (Gang of Four) design patterns refer to a set of 23 software design patterns that were first introduced in the book "Design Patterns: Elements of Reusable Object-Oriented Software" by…