Java Questions
Overview Let’s learn about the advantages of Javascript. JavaScript is basically a client-side language. It is run on the visitors’ computers. It is a web programming language that communicates with HTML elements and their values. It can add or remove some effects to them and handle events that happen on the web page. Advantages of […]
Overview In this tutorial, we will see the steps how to setup JDK 15 environment in popular IDEs like IntelliJ and Eclipse IDE. We need to install JDK 15 on the machine to use the latest features in the IDE. Install JDK 15 on the machine. IntelliJ Launch IntelliJ IDE and the project to configure. […]
Overview Sealed Interface allows only the permitted classes to implement the interface. Unknown classes are not allowed to implement the interface. The sealed interface specifies the permitted classes using the permits clause. We can specify the interface as sealed using the keyword sealed. Sealed Interface //www.TestingDocs.com public sealed interface Thinkable permits Person { public void […]
Sealed Class Sealed classes in Java allow inheritance from the known sub classes that are specified by the permits keyword or defined in the same class file. If we mark a class as sealed it should have some sub classes specified using the permits clause or sub classes defined in the file. For example public […]
Introduction Some of the interesting new features in JDK15 are as follows: Sealed Class Sealed Interfaces Text Blocks Records Hidden Classes Sealed Class https://www.testingdocs.com/questions/what-are-sealed-classes-in-java/ Sealed Interface https://www.testingdocs.com/questions/what-is-a-sealed-interface-in-java/ Text Blocks Textblocks are designed to support multi-line strings in the Java code. Text block begins with three double quotes and newline. package jdk15; //www.TestingDocs.com public class TextBlockDemo […]
Introduction On this page, let’s see detailed steps to install Oracle 14 JDK on Windows 10 operating system. How to change the install directory and to see JDK documentation. Download Pick the JDK installer to download Download the 64-bit installer. Download the .exe file on to the computer. Click the Save […]
