Learn to read typesafe user inputs from console in any interactive java application i.e. prompt the user until user inputs the value in correct format/datatype.
Using programming, we cannot change the way these floating point numbers are stored or computed. So we have to adapt a solution where we agree that a determine the differences in both values which we can tolerate and still consider the numbers equal. This agreed upon difference in values is called the threshold.
By default, Spring bean factory eagerly creates and initializes all ‘singleton scoped‘ beans during application startup itself. It helps in detecting the bean configuration issues at early stage, in most of the cases. But sometimes, you may need to mark some or all beans to be lazy initialized due to different project requirements. Spring provides […]
Learn to create spring bean container using pure java configuration using annotations for any standalone application. We will learn to create it with and without scanning of component annotations and using @Bean annotations. Table of contents Create bean container with component scanning enabled Create bean container using @Bean annotation Create bean container with component scanning […]
In this example, we will quickly go through the steps to create Spring’s application context in any standalone application. It uses maven to manage the dependencies and eclipse to build and run the code. 1) Maven Dependencies To create application context, which is capable of creating and managing beans, we need minimum three maven dependencies […]
Alexa is Amazon’s cloud-based voice service. In this tutorial, learn to add custom skills to amazon Alexa and to use those skills in Amazon Eco device.
In Spring framework, you can create beans in 6 inbuilt scopes and you can also define your custom scope as well. Out of these six scopes, four are available only if you use a web-aware ApplicationContext. singleton and prototype scopes are available in any type of IOC containers.
In this Spring boot actuator tutorial, learn about inbuilt HTTP endpoints available to any boot application for different monitoring and management purpose.
Learn to consume SOAP webservices using spring’s WebServiceTemplate and auto client proxy class generation using JAXB maven plugin. Creating a SOAP webservice is out of scope of this tutorial, but you may learn it here.
In this tutorial, learn to create and consume RSS and Atom feed from spring boot application. You must have seen this in form of text or image buttons on various websites (like our RSS feed) inviting you to “Subscribe via RSS.” RSS is simple syndication API – often referred as Rich Site Summary. RSS revolutionized […]
CORS helps in serving web content from multiple domains into browsers who usually have the same-origin security policy. In this example, we will learn to enable CORS support in Spring MVC application at method and global level.
In this spring boot soap tutorial, we will focus only in the Spring boot related configurations to see how easily we can create our contract first SOAP webservice.
In this maven tutorial, learn to add and configure tomcat plugin to pom.xml and use it deploy the web application without any tomcat installation in machine.
Learn to create Spring MVC controllers and map requests with request mapping annotations e.g. @RequestMapping, @GetMapping, @PostMapping, @PutMapping, @DeleteMapping and @PatchMapping.
In this tutorial, we will learn about Spring’s DispatcherServlet class, it’s responsibilities and how to configure it with examples.
In this Spring5 tutorial, learn to create Spring 5 MVC web application, handle form submission, integrate hibernate to connect to backend database and adding hibernate validator for input form fields validation.
In this spring boot example, learn to configure web application to run on SSL (HTTPS) with self-signed certificate. Also learn to create SSL cert, as well.
To get stream of random integers, longs or doubles within a given range – use the ints(), longs() and doubles() methods in Random and SecureRandom classes.
In this Java AIML tutorial, we will learn to create demo chatbot application using AIML and NLP application program-ab hosted on google-code repository.
Learn to find min and max date, number, Char, String or object from stream of comparable elements in easy steps using Comparator.comparing() method.