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java beginners tutorial java beginners tutorial skip to content java selenium hibernate python tutorial menu toggle spring design patterns oracle interview questions source code base search for search search main menu about us contact us core java tutorial design patterns in java hibernate tutorial oracle tutorial other tutorial privacy policy python tutorial for beginners source code base spring framework tutorial terms of use javascript class leave a comment javascript by sandip salunke class class is an object oriented programming concept in javascript it s similar to a function classes are just a special functions added to the es6 but they give you more power and flexibility by assigning properties to them constructor a special method that represents class it is used to create and initialize the object created javascript class read more how to use optional in java 8 streams leave a comment code base by jbt in this article we will learn how to use optional in java 8 streams optional is a container object which may or may not contain null value some of the most important methods in optionals are ispresent if a value is present returns true else return false isempty opposite of ispresent if a how to use optional in java 8 streams read more spring boot 2 actuator endpoint leave a comment spring boot by jbt here we will talk about the spring boot 2 actuator endpoints i will cover below points in this article at any point you can refer github repository for spring boot 2 actuator configuration url path enable expose enable expose before we work with endpoint we need to understand the difference between exposed spring boot 2 actuator endpoint read more package javax validation constraints does not exist error in spring boot 2 3 1 comment spring boot by jbt if you are using validation constraints in your spring boot application and just migrated to spring boot 2 3 you will face an error saving javax validation constraints does not exist it happened to me when i tried to migrate spring boot application to jdk 14 and spring boot 2 3 design multi threaded architecture leave a comment design pattern javascript node js by sandip salunke what is multi threading multithreading is the ability of a program to perform multiple tasks concurrently multi threading is a programming language term derived from a concept of multitasking it is used when we want to divide our job into several independent parts it allows the execution of multiple parts of a program at the same time design multi threaded architecture read more 10m advanced webdriver running tests in headless mode 2 comments selenium by chandana chaitanya let s run some automated selenium tests in firefox without firefox in other words tests run in the background and there is no display i e the browser ui is not displayed to the user java 14 instanceof pattern matching leave a comment core java by jbt jdk prepares to use pattern matching in future versions in jdk 12 pattern matching has been implemented in switch expression and the same is being implemented to instanceof in jdk 14 as a preview feature in java program instanceof include logic that combines testing if an expression has a certain type and then conditionally extracting java 14 instanceof pattern matching read more 9ac webdriver unable to locate an element easily read on leave a comment selenium by chandana chaitanya the easy and best way to handle scenarios where there are no proper locators is to introduce data attributes custom data attributes on html elements spring boot data with h2 database leave a comment spring boot by jbt in this tutorial we ll learn how to use the h2 in memory database with spring boot spring boot support h2 just like any other database h2 is the open source java sql database which is mainly used for testing or poc purposes spring boot provides out of the box support for h2 and you don t need to spring boot data with h2 database read more java for loop leave a comment core java by jbt java for loop and enhanced for loop is a type of control flow statement which provides a compact way to iterate over a range of values for loop repeatedly loops through the code until a particular condition is satisfied over the period java has added different types of for loop for loop enhanced for loop java for loop read more posts navigation 1 2 30 next page copyright 2023 java beginners tutorial scroll to top
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