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…
Arrow Operator in Java
In Java, the arrow operator "->" is a relatively new addition that was introduced in Java 8 as part of the lambda expressions feature. It is used to separate the…
Prototype Design Pattern
The Prototype design pattern is a creational design pattern that allows you to create objects by cloning an existing object, rather than creating a new object from scratch. This can…
Factory Method Design Pattern
The Factory Method Design Pattern is a creational pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will…
Singleton Design Pattern
In Java, the Singleton Design Pattern is a creational pattern that restricts the instantiation of a class to a single instance and provides a global point of access to that…
Thread.sleep() in Java
In Java, the Thread.sleep() method is used to pause the execution of a thread for a specified period. It is a static method in the Thread class that allows a…