本文分为十九个模块,分别是:「Java基础、容器、多线程、反射、对象拷贝、Java Web 、异常、网络、设计模式、Spring/Spring MVC、Spring Boot/Spring Cloud、Hibernate、MyBatis、RabbitMQ、Kafka、Zookeeper、MySQL、Redis、JVM」,如下图所示: 共包含 208 道面试题,本文的宗旨是为读者朋友们整理一份详实而又权威的面试...
代码示例 package com.simple.util.file; import java.io.File; import java.net.URL; import java.util.ArrayList; import java.util.List; /** * @program: simple_tools * @description: 文件工具类 * @author: ChenWenLong * @create: 2019-11-18 11:46 **/ public class Fi cwl_java 2020/02/11...
public static void main(String[] args) { SwingUtilities.invokeLater(SimpleCalculator::new); } } ``` ### 代码解释 1. **类和构造函数**:`SimpleCalculator` 类继承自 `JFrame`,在构造函数中进行窗口的初始化和组件的创建。 2. **文本框和按钮面板**:创建一个文本框用于显示输入和结果,创建一个面板...
/** * * SimpleOptimize is a sample program to demonstrate the capabilities of * Qoppa's PDF Library jPDFOptimizer. This is the simplest implementation * it to open a PDF document, optimize it and save it to a new file. * Note that the main class SimpleOptimizer * implements com.qoppa...
Java TV is a Java ME-based technology that provides a performant, secure, and easy to implement solution for developing Java applications that run on TV and set top box devices. Using the Java TV runtime, a developers can easily create applications, such as Electronic Program Guides (EPG's...
子类对象(object of subtype/derived class)能够替换程序(program)中父类对象(object of base/parent class)出现的任何地方,并且保证原来程序的逻辑行为(behavior)不变及正确性不被破坏。 LSP原则解决什么问题 用来指导继承关系中子类该如何设计,子类的设计要保证在替换父类的时候,不改变原有程序的逻辑及不破坏原有程...
Additionally, through the Quality Outreach program we would like to thank the following FOSS (Free and Open Source) projects and individuals who provided excellent feedback on testing Java 18 early access builds to help improve the quality of the release: · Apache Derby (Rick Hillegas) · Apac...
Getting Started– An introduction to Java technology and lessons on installing Java development software and using it to create a simple program. Learning the Java Language– Lessons describing essential concepts such as classes, objects, inheritance, datatypes, generics, and packages. ...
programmr:这是一个在线编程挑战平台,提供了各种Java编程挑战题目,帮助学习者提高编程技能。 Javatpoint:这是一个提供Java教程和案例的在线学习平台,内容丰富且具有实用性。 CSDN:中国最大的开发者社区,有大量的Java开发文章和技术交流。 Github:这是一个代码托管平台,可以找到很多开源的Java项目和代码库,通过阅读和实...
OpenJML - Translates JML specifications into SMT-LIB format and passes the proof problems implied by the program to backend solvers. Functional Programming Libraries that facilitate functional programming. Cyclops - Monad and stream utilities, comprehensions, pattern matching, trampolines and much more. Fu...