1.JDBC Interview Questions and Answers If you are working on Enterprise applications, I am sure that JDBC API is a part of it. JDBC API provides database connectivity for relational databases, such as MySQL and Oracle. This article has a collection of 40+ interview questions related to the ...
In JPA (Java Persistence API) or Hibernate, the @Transient annotation indicates that a particular field should not be persisted in the database. This is useful when you want to mark a field that should be ignored during database operations. The field will be treated as a non-persistent fiel...
Java Collections Interview Questions and AnswersWhat are Collection related features in Java 8? Java 8 has brought major changes in the Collection API. Some of the changes are: Java Stream API for collection classes for supporting sequential as well as parallel processing Iterable interface is extend...
Basic understanding of Javalin and REST APIs 1. Project Setup: Create a new project directory and initialize a Gradle project usinggradle init --type kotlin-application. Add the Javalin and Javalin-JWT dependencies to yourbuild.gradle.ktsfile: ...
java.util.EnumSet是使用枚举类型的集合实现。当集合创建时,枚举集合中的所有元素必须来自单个指定的枚举类型,可以是显示的或隐示的。EnumSet是不同步的,不允许值为null的元素。它也提供了一些有用的方法,比如copyOf(Collection c)、of(E first,E…rest)和complementOf(EnumSet s)。
type that is specified, explicitly or implicitly, when the set is created. EnumSet is not synchronized and null elements are not allowed. It also provides some useful methods like copyOf(Collection c), of(E first, E… rest) and complementOf(EnumSet s).Check this post forjava enum tutorial...
Spring Boot REST API crash course If you want to master RESTful API development in Java, you need to learn the Spring Boot web APIs. This REST tutorial gets you up to speed quickly on Spring Boot and REST. GET vs. POST: What's the difference? POST and GET are the two most-used RES...
它也提供了一些有用的方法,比如copyOf(Collection c)、of(E first,E…rest)和complementOf(EnumSet s)。28.哪些集合类是线程安全的?Vector、HashTable、Properties和Stack是同步类,所以它们是线程安全的,可以在多线程环境下使用。Java1.5并发API包括一些集合类,允许迭代时修改,因为它们都工作在集合的克隆上,所以它们...
spring-webmvc module (also known as the Web-Servlet module) contains Spring’s model-view-controller (MVC) and REST Web Services implementation for web applications. Spring’s MVC framework provides a clean separation between domain model code and web forms and integrates with all of the other ...
Looking forward to appear in Java Interview, here are the key Java Interview Questions with Answers only for you. - aatul/Java-Interview-Questions-Answers