Technical Interview Questions
Application client module Web module Enterprise JavaBeans module Resource adapter module Java 2 Platform, Enterprise Edition (J2EE) has been rebranded as Java EE (Enterprise Edition). As of my last knowledge update in January 2022, the correct answer regarding the types of modules in Java EE would be: Enterprise JavaBeans (EJB) Module: This module is used … Read more
A J2EE component is a self-contained functional software unit that is assembled into a J2EE application with its related classes and files and communicates with other components. The J2EE specification defines the following J2EE components: Application clients and applets are client components. Java Servlet and JavaServer PagesTM (JSPTM) technology components are web components. Enterprise JavaBeansTM … Read more
A J2EE module consists of one or more J2EE components for the same container type and one component deployment descriptor of that type. Java 2 Platform, Enterprise Edition (J2EE) has been rebranded as Jakarta EE, but the concepts remain the same. In the context of Jakarta EE (or J2EE), a module refers to a self-contained … Read more
J2EE is an environment for developing and deploying enterprise applications. The J2EE platform consists of a set of services, application programming interfaces (APIs), and protocols that provide the functionality for developing multitiered, web-based applications. J2EE, which stands for Java 2 Platform, Enterprise Edition, is a set of specifications, APIs (Application Programming Interfaces), and technologies developed … Read more
cmd/designated folder/ jar cf name.jar *.* Create a file: META-INF/MANIFEST.MF Add a line: Main-Class: com.myco.calc.CalculatorDemo Include META-INF/MANIFEST.MF in calculator.jar Run with java -jar calculator.jar. To convert a Java file to a JAR (Java Archive) file in Advanced Java, you typically use the Java Archive (jar) tool provided by the Java Development Kit (JDK). Here are … Read more