本单元的题目为设计电梯,通过这单元的学习,我初步了解了关于java多线程编程及线程之间并发安全性设计等方面的内容.以下为对这三次作业的分析与总结. 作业分析 序号 楼层 电梯数量 可停靠楼层 调度策略 1 1-15 1 1-15 任意 2 -3--1,1-16 1 -3--1,1-16 捎带 3 -3--1,1-20 3 A:-3--1,1,15-20 任意 B:-2,-1,1,2,4-15 C:1,3,5,7,9,11,13,15 表1:三次电梯设计要求 图1.电梯设计——类与结构 一. 第一…

Unit2 一.第一次作业 1.UML 2.Sequence Diagram 3.同步块设置与锁处理 采用了生产者-消费者模式,用共享对象来连接不同的线程. 第一次作业中,我有三个线程:Receiver,Manager,Elevator,用PersonQueue WaitingQueue分别来连接Receiver和 Manager,Manager和Elevator 整个程序中的加锁操作只针对有可能发生数据竞争的连个共享对象:PersonQueue,WaitingQueue 加锁是为了保证之后位于…

Summary of Critical and Exploitable iOS Vulnerabilities in 2016 Author:Min (Spark) Zheng, Cererdlong, Eakerqiu @ Team OverSky 0x00 Introduction iOS security is far more fragile than you believe. And there are lots of critical and exploitable iOS vuln…

前面的话 HTML5不仅新增了语义型区块级元素及表单类元素,也新增了一些其他的功能性元素,这些元素由于浏览器支持等各种原因,并没有被广泛使用 文档描述 <details>主要用于描述文档或文档某个部分的细节,与<summary>配合使用可以为<details>定义标题.标题是可见的,用户点击标题时,显示出details [注意]这两个标签只有chrome和opera支持 <details> 该标签仅有一个open属性,用来定义details是否可见(默认为不…

Given a sorted integer array without duplicates, return the summary of its ranges. For example, given [0,1,2,4,5,7], return ["0->2","4->5","7"]. Credits:Special thanks to @jianchao.li.fighter for adding this problem and…

Network Basic Commands Summary set or modify hostname a)     temporary ways hostname NEW_HOSTNAME, but if you reboot your system, it will disabled. b)    permanent ways: edit "/etc/sysconfig/network" HOSTNAME, then restart system, it will effect…

30.13 Summary Network management protocols allow a manager to monitor and control routers and hosts. A network management client program executing on the manager's workstation contacts one or more servers, called agents, running on the devices to be…

==> Downloading https://homebrew.bintray.com/bottles/nginx-1.10.1.el_capitan.bot######################################################################## 100.0%==> Pouring nginx-1.10.1.el_capitan.bottle.tar.gz==> CaveatsDocroot is: /usr/local/var/…

Design and implement a data structure for Least Frequently Used (LFU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1. s…

[re: Orchard CMS] This caused me scratching my head for days and now I can even feel it's bleeding. The answer however is the simplest. Because it's not obviously indicated anywhere, I was anticipating the layout only works for the detail view of A c…