Knowledge Factory

In this section, we will show how we used Java Record as DTO in the Spring Boot application. The  GitHub repository link is provided at the end of this tutorial. You can download the source code. From Java 14 onwards, the record is a special type of class declaration aimed at reducing the boilerplate code. Technologies used :  Spring Boot 2.6.3 Spring  Data JPA  Java 17  H2 DB Maven 3+  Let's do it, Final Project Directory Maven[pom.xml]   A Project Object Model or POM is the fundamental unit of work in Maven. It is an XML file that contains information about the project and configuration details utilized by Maven to build the project.  <?xml version = "1.0" encoding = "UTF-8" ?> <project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" > <modelVersion&g

Hello everyone, here we will show you how to convert a Set to another Set in Java using Java streams map(). The ‘map’ method maps each element to its corresponding result.  Java Stream API The Java Stream API provides a functional approach to processing collections of objects. The Stream in Java can be defined as a sequence of elements from a source Collection or Array. Most of the stream operations return a Stream. This helps create a chain of stream operations( stream pipe-lining ).  The streams also support the aggregate or terminal operations on the elements. for example, finding the minimum or maximum element or finding average etc...Stream operations can either be executed sequentially or parallel. when performed parallelly, it is called a parallel stream. Stream map() Method The  Java 8 Stream map()  is an intermediate operation.It converts Stream<obj1> to Stream<obj2>. For each object of type  obj1 , a new object of type  obj2  is created and put in the new Stream.