This list collects 100 high quality blogs from Java developers from all over the world. Some of these blogs may not be written by Java developers, but at least Java developers should find it useful or interesting. Reading those blogs should be fun an…

(by JP Zhang | Last updated: Apr 5, 2016 )  转载自:http://www.softwarehow.com/best-blogs-for-ios-developers/ If you are looking for insightful and educational iOS development blogs, you've come to the right place. Here are my 100 favorite, active blogs…

原文地址:http://zeroturnaround.com/rebellabs/watch-out-for-these-10-common-pitfalls-of-experienced-java-developers-architects/ Can we start by asking a serious question? How easy is it to find advice for novice Java programmers on the web? Whenever I loo…

(Sorry for that click-bait heading. Couldn’t resist ;-) ) We’re on a mission. To teach you SQL. But mostly, we want to teach you how to appreciate SQL. You’ll love it! Getting SQL right or wrong shouldn’t be about that You’re-Doing-It-Wrong™ attitude…

This list summarizes the top 10 mistakes that Java developers frequently make. #1. Convert Array to ArrayList To convert an array to an ArrayList, developers often do this: List<String> list = Arrays.asList(arr); Arrays.asList() will return an Array…

文章列出了Java开发者最常犯的是个错误. 1.将数组转换为ArrayList 为了将数组转换为ArrayList,开发者经常会这样做: ? 1 List<String> list = Arrays.asList(arr); Arrays.asList()会返回一个ArrayList,但这个ArrayList是Arrays的私有静态类,不是java.util.ArrayList.java.util.Arrays.ArrayList有set(), get(), contains()方法,但没有任…

Java is one of the most popular programming language nowadays. There are plenty of books for beginners. But to those who have programmed with Java for a while, some of them may look somehow simple and redundant. The beginner’s books do not bring fres…

Forget Guava: 5 Google Libraries Java Developers Should Know Published on 2016 7 13 Somenath PandaFollow If we would stop someone during an intense hackathon and ask her to name a popular and ask her to name a popular Google Java library, the answer…

面向对象编程(OOP) Java是一个支持并发.基于类和面向对象的计算机编程语言.下面列出了面向对象软件开发的优点: 代码开发模块化,更易维护和修改. 代码复用. 增强代码的可靠性和灵活性. 增加代码的可理解性. 面向对象编程有很多重要的特性,比如:封装,继承,多态和抽象.下面的章节我们会逐个分析这些特性. 封装 封装给对象提供了隐藏内部特性和行为的能力.对象提供一些能被其他对象访问的方法来改变它内部的数据.在Java当中,有3种修饰符:public,private和protected.每一种修…

原文: DEPLOYING NATIVE UWP (UNIVERSAL WINDOWS PLATFORM) APPS FOR JAVA DEVELOPERS & PUBLISHING THEM TO THE MICROSOFT STORE UWP Apps may distributed in 2 different ways: In the Windows App Store. (This should be used for deployment of any production app)…

Kotlin for Java Developers 学习笔记 ★ Coursera 课程 Kotlin for Java Developers(由 JetBrains 提供)的学习笔记 " From Java to Kotlin Java 和 Kotlin 代码可以相互转化 public class Person {    private final String name;    private final int age;        public Person(String name,…

原文地址:http://www.softwarehow.com/best-blogs-for-ios-developers/ (by JP Zhang | Last updated: Apr 5, 2016 )…

j package test1; //2018/11/30 //求100以内的所有素数 public class Main10 { public static void main(String[] args){ Main10 test=new Main10(); System.out.println("100以内的素数:"); int count=0; for(int i=2;i<100;i++) { if(test.isPrimeNumber(i)==true) { Syste…

1.  基本概念 1.1.  主要组件 Docker有三个主要组件: 镜像是Docker的构建组件,而且是定义应用程序操作系统的只读模板 容器是Docker的运行组件,它是从镜像创建的.容器可以运行.启动.停止.移动和删除 镜像在注册中心中存储.共享和管理,并且是Docker的分发组件.Docker Store 是一个公开可用的注册中心.https://hub.docker.com/ 为了上这三个组件协同工作,Docker守护进程(或者叫Docker容器)运行在一个主机上,并负责构建.运行和分发…

前者集成了WTP,可用于j2ee开发,功能更完善…

1.进入eclipse官网下载页面 https://www.eclipse.org/downloads/ 2.点击Download Packages 3.windows 用户 选择 64 bits 4.点击 Downloads下载 5.可以选择捐款,也可以直接点击clink here 略过捐款直接下载安装包…

本文由HollisChuang 翻译自 The Top 100 Java Libraries in 2016 – After Analyzing 47,251 Dependencies . 原作者:Henn Idan 我们分析了GitHub中47,251个依赖,从中找出了排名前一百的Java类库,让我们看看谁在前面,谁在后面. 我们在漫长的周末的消遣方式就是浏览GitHub并且搜索流行的Java类库.我们决定把其中的乐趣与结果分享给你. 我们分析了GitHub中排名前3,862个项目中的47,2…

我们分析了GitHub中47,251个依赖,从中找出了排名前一百的Java类库,让我们看看谁在前面,谁在后面. 我们在漫长的周末的消遣方式就是浏览GitHub并且搜索流行的Java类库.我们决定把其中的乐趣与结果分享给你. 我们分析了GitHub中排名前3,862个项目中的47,251个导入语句,其中有12,059个Java类库被依赖.我们从这个列表中提取出前一百并把结果分享给你. 最受欢迎的前20个Java类库 和上次分析结果一致,junit依旧是GitHub中最受欢迎的类库.Java中的日志…

面向对象编程(OOP) Java是一个支持并发.基于类和面向对象的计算机编程语言.下面列出了面向对象软件开发的优点: 代码开发模块化,更易维护和修改. 代码复用. 增强代码的可靠性和灵活性. 增加代码的可理解性. 面向对象编程有很多重要的特性,比如:封装,继承,多态和抽象.下面的章节我们会逐个分析这些特性. 封装 封装给对象提供了隐藏内部特性和行为的能力.对象提供一些能被其他对象访问的方法来改变它内部的数据.在Java当中,有3种修饰符:public,private和protected.每一种修…

================================================= 人工智能教程.零基础!通俗易懂!风趣幽默!大家可以看看是否对自己有帮助! 点击查看高清无码教程 ================================================= 工欲善其事,必先利其器 简介 本篇整理两个排查问题的简单技巧,一个是java死锁排查,这个一般在面试的时会问到,如果没有写多线程的话,实际中遇到的机会不多:第二个是java cpu 100%排查,这个实际…

写这个专栏的缘起 之前我写过一篇博客:<朱晔的互联网架构实践心得S2E2:写业务代码最容易掉的10种坑>,引起的关注还是挺多的.后来和极客时间的编辑一拍即合决定以这个为题写一个专栏.其实所谓坑就是容易忽略但是不容易发现的问题,大部分生产事故都是发布.运维相关的配置引起,真正代码中的问题上线后产生问题的坑并不多,虽然我接触过很多生产事故,但是能提炼出写代码的坑的点不多.所以在内容整理方面我花了很多时间,最终我总结出100+的点,形成了这样一个30+文章的专栏. 专栏名字叫<Java业务开发…

Java 8 日期和时间 声明 本文转自http://www.journaldev.com/2800/java-8-date-localdate-localdatetime-instant,以markdown格式整理,方便大家查看. Java 8 Date – LocalDate, LocalDateTime, Instant //JUNE 3, 2016 BY PANKAJ 4 COMMENTS// Java 8 Date Time API is one of the most sought…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

参考 Java 8 Date and Time API is one of the most sought after change for developers. Java has been missing a consistent approach for Date and Time from start and Date Time API is a welcome addition to the core Java APIs. Why do we need new Java Date Ti…

How to Use DTrace to Troubleshoot Java Native Memory Problems on Oracle Solaris 11 Hands-On Labs of the System Admin and Developer Community of OTN by Wang Yu, Vincent Liu, and Gary Wang This lab will introduce the basic concepts of DTrace and provid…

1. CodePro AnalytixIt’s a great tool (Eclipse plugin) for improving software quality. It has the next key features: Code Analysis, JUnit Test Generation, JUnit Test Editor, Similar Code Analysis, Metrics, Code Coverage and Dependency Analysis.2. PMDI…

Awesome系列的Java资源整理.awesome-java 就是akullpp发起维护的Java资源列表,内容包括:构建工具.数据库.框架.模板.安全.代码分析.日志.第三方库.书籍.Java 站点等等. 经典的工具与库 (Ancients) In existence since the beginning of time and which will continue being used long after the hype has waned. Apache Ant - Build…

      变量 String yourPast = "Good Java Programmer"; val yourPast : String = "Good Java Programmer" val yourPast = "Good Java Programmer" var yourFuture = "Good Java Programmer" 自动类型推断:可变.不可变变量 class Money(amount:Int)…

图书管理模块:某图书管需要对图书进行信息化管理,要求管理员能够进行新增图书,能按照书名进行模糊查看图书能进行价格统计 系统实现如下:1.新增2.查询3.统计价格 1请输入新书:图书号,书名,作者,价格 新增成功,选择其他操作1.新增2.查询3.统计价格 2请输入书名:水1002,水浒传,施耐庵,1081003,喝水好处多,张三,199 选择其他操作1.新增2.查询3.统计价格 3总计:图书10本,价格1020元 //////////////////////////////////////////…

Introduction to Functional Interfaces – A concept recreated in Java 8 Any java developer around the world would have used at least one of the following interfaces: java.lang.Runnable,java.awt.event.ActionListener, java.util.Comparator,java.util.concu…