Spring Boot provides a very good support to building RESTful Web Services for enterprise applications. In this post we will create simple RESTful web services using Spring Boot. For building a RESTful Web Services, we need to add the Spring Boot Starter Web dependency into the pom.xml file. <dependency> <groupId>org.springframework.boot</groupId>…

What is Cloud Computing? Have you ever wondered what cloud computing is? It’s the delivery of computing services over the internet, which is otherwise known as the cloud. These services include servers, storage, databases, networking, software, analytics, and intelligence. Cloud computing offers faster innovation, flexible resources, and economies of scale. Why is cloud computing…

An API(Application Programming Interface) represents a group of classes and interfaces using which a programmer can develop applications or software, In Java 8, a new package java.util.stream has been provided for creating and working with streams, We know that a stream represents flow of data from one place to another…

The Math class is present in java.lang package, this is a final class and all the methods present in Math class are static so we need not create an object to Math class to call them, public final class Math extends Object{} The Math class contains methods for performing basic…

We write a method in the form of sum(int a, int b), since the method has only two parameters, so we can pass only two values or two arguments to this method, it is not possible to pass more than two values to this method sum() Suppose we want to…

pom.xml : Maven is Dependency management and build tool used to handle both stand alone and Archetype (web, restful) applications. Dependency Management: Getting main Jars and its child jars with version support (without conflicts) into project workspace is called as Dependency Management. Build: Converting our application into final JAVA executable format i.e .jar/.war/.ear…

A Runner is an auto-executable component which is called by container on application startup only once, In simple this concept is used to execute any logic (code) one time when application is started, Spring Boot provides two interfaces, CommandLineRunner and ApplicationRunner, to run specific pieces of code when an application…

JAR stands for Java ARchive WAR stands for Web application ARchive EAR stands for Enterprise Application aRchive A JAR file extension is .jar and is created with jar command from command prompt (like javac command is executed). Generally, a JAR file contains Java related resources like libraries, classes etc.JAR file is…

Java Autoboxing and Unboxing with examples: Java 1.5 introduced a special feature of auto conversion of primitive types to the corresponding Wrapper class and vice versa. Autoboxing: Automatic conversion of primitive types to the object of their corresponding wrapper classes is known as autoboxing, For example — conversion of int to…