泛型是Java SE 5.0中引入的一项特征,自从这项语言特征出现多年来,我相信,几乎所有的Java程序员不仅听说过,而且使用过它.关于Java泛型的教程,免费的,不免费的,有很多.我遇到的最好的教材有: The Java Tutorial Java Generics and Collections, by Maurice Naftalin and Philip Wadler Effective Java中文版(第2版), by Joshua Bloch. 尽管有这么多丰富的资料,有时我感觉,有…
appium简明教程 什么是appium? 下面这段介绍来自于appium的官网. Appium is an open-source tool you can use to automate mobile native, mobile web, and mobile hybrid applications on iOS and Android platforms. “Mobile native apps” are those written using the iOS or Android SD…
Apache log4j的官方介绍是“log4j is a reliable, fast and flexible logging framework (APIs) written in Java, which is distributed under the Apache Software License. log4j is highly configurable through external configuration files at runtime. It views the log…
微信公众号:码农充电站pro 个人主页:https://codeshellme.github.io Talk is cheap, show me the code. -- Linus Torvalds 目录 控制流用来控制程序的处理流程,即当程序满足或不满足某一条件时,让程序去做哪些事情. 控制流语句使得我们可以处理丰富的代码逻辑. 基本的控制流语句有三种,分别是: if 条件语句 for 循环语句 while 循环语句 1,if 条件语句 if 语句用于判断一个条件,当条件为True 时,执行…