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. To answer these questions, you need to explain why it makes sense to put these methods in the object class, and why not put them in the thread class. One obvious reason is that the locks provided by Java are object-level rather than thread-level, and each object has a lock, which is obtained through the thread. The wait () method in the calling object is meaningful if the thread waits for some locks. If the wait () method is defined in the thread class, it is not obvious which lock the thread

50 tips for improving PHP execution efficiency by parsing. 50 tips for improving PHP execution efficiency 1. use single quotes instead of double quotes to include strings, which is faster. Because PHP will search for variables in strings enclosed by double quotes, 50 tips for improving PHP execution efficiency 1. replace double quotation marks with single quote

According to foreign media reports, the Research Institute iSuppli recently said that Google's upcoming free network storage space may be as high as 50 GB. Google's network storage space will reach 50 GB At the end of November, it was reported that Google would launch the network storage service, allowing users to store files on Google servers on local computers. This service is free of charge, but u

, 1113 convex hull algorithms required) 1113 1292 2148 (difficult) 2653 1584 13th categories of precision (at least 3 questions, 1001 required) 1001 1047 1131 1503 1504 and 1060 (polynomial) scu1002, 1996 4 (http://acm.scu.edu.cn/soj) 14th class simulation (at least 5 questions) 1029 and 1013 1083 and 2028 2234 and 1067 1012 1026 1068 1120 2271 15th class Mathematics (at least 4 questions) 2249 1023 2506 1079 1019 and 1095 1905 and 1064 (Binary)The famous North mail ACM training team recommends

web-based apps and tools for Web developers (from 2012) → Our 50 favorite web development resources from 2012 (from 2012) → 50 new resources and tools for Web developers (2012) → 50 free tools and apps for web designers and developers (2011) → CSS HTML toolscss trashman CSS trashman will automatically refactor your CSS and generate a new stylesheet for your si

Php tips: 50 practical skills for high-quality php code (I). I hope you will like it. I hope you will like the practical skills of 50 high-quality PHP codes. 1. do not use relative pathsWe often see: require_once('../../lib/some_class.php'); This method has many disadvantages: it first looks for the specified php inclusion path and then the current directory. Therefore, excessive paths are checked. If the

Distribution MoneyTime limit:2000/1000 MS (java/others) Memory limit:65536/65536 K (java/others)Total submission (s): 276 Accepted Submission (s): 163Problem Descriptionafa want to distribution she money to somebody. She divide her money into n same parts. One who want to get the money can get more than one part. But if one man's money was more than the sum of all others '. He Shoule be punished. Each one o

problem. Just knowing the basic concept of threading is far from enough, you must know how to deal with the concurrency problems such as deadlock, race condition, memory conflict and line Cheng. With these tips, you can easily handle multithreading and concurrent interviews. It's normal for many Java programmers to go to the interview before the interview. Because collecting face questions and exercises took time, I collected 50 hot questions from ma

, concurrent programming common design patterns, classic multithreading problems such as producer consumers, philosophers dining, A reader or a simple bounded buffer problem. Just knowing the basic concept of threading is far from enough, you must know how to deal with the concurrency problems such as deadlock, race condition, memory conflict and line Cheng. With these tips, you can easily handle multithreading and concurrent interviews. It's normal for many Java programmers to go to the inte

concurrency programming, Java memory model, JDK1.5 introduced Higher-order concurrency tools, concurrent Programming common Design patterns, Classic multithreading problems such as producer consumers, philosophers dining, A reader or a simple bounded buffer problem. Just knowing the basic concept of threading is far from enough, you must know how to deal with the concurrency problems such as deadlock, race condition, memory conflict and line Cheng. With these tips, you can easily handle multith

problem. Just knowing the basic concept of threading is far from enough, you must know how to deal with the concurrency problems such as deadlock, race condition, memory conflict and line Cheng. With these tips, you can easily handle multithreading and concurrent interviews. It's normal for many Java programmers to go to the interview before the interview. Because collecting face questions and exercises took time, I collected 50 hot questions from ma

problem. Just knowing the basic concept of threading is far from enough, you must know how to deal with the concurrency problems such as deadlock, race condition, memory conflict and line Cheng. With these tips, you can easily handle multithreading and concurrent interviews. It's normal for many Java programmers to go to the interview before the interview. Because collecting face questions and exercises took time, I collected 50 hot questions from ma

problem. Just knowing the basic concept of threading is far from enough, you must know how to deal with the concurrency problems such as deadlock, race condition, memory conflict and line Cheng. With these tips, you can easily handle multithreading and concurrent interviews. It's normal for many Java programmers to go to the interview before the interview. Because collecting face questions and exercises took time, I collected 50 hot questions from ma

This article will show you 50 jquery code snippets that can help your javascript project. Some of the code snippets are supported from jQuery1.4.2, others are actually useful functions or methods that can help you complete things quickly and well. These are code segments with the best performance I can remember. If you find anything better, paste your version in the comments! I hope you can find something helpful in this article. 1. How to Create n

2016 the first half of the Network engineer Exam is to prepare for the second half of the Network engineer Exam The best information, the following Greek soft Test college for you to organize the morning test, for your reference study.2016 first half network engineer exam morning real problem (27-50)DHCP dynamically assigns IP addresses, and if a host does not get a response from the DHCP server, the

50 ways to optimize C # programs This article mainly describes the C # program optimization of the 50 places to be aware of, using C # Development of friends can seeFirst, use attributes instead of accessible fields1,. NET data binding only supports data binding, the use of attributes can obtain the benefits of data binding;2. The get and set accessors of a prope

A business card, known as a thorn in ancient China, is a piece of paper marking the name, organization, company unit, and contact method. Business cards are the fastest and most effective way for new friends to know each other and introduce themselves. In this article, we will share with you 50 unique business card designs, hoping to inspire you and enjoy them together. 1. Business card designed by Graham Jones with type set in Lubalin Graph. 2. This

Brothers share what PHP experts do: 50 details that cannot be viewed 1. replace double quotation marks with single quotes to include strings, which will be faster. Because PHP will search for variables in strings enclosed by double quotation marks, the brothers will share the following 50 details: 1. replace double quotation marks with single quotes to include strings, which is faster. Because PHP will sea

()Screen. fill (0, 0, 0 ))Times = 0.0While True:Time_passed = FPSCLOCK. tick (30)If times >=150:Times = 0.0S = move (s, d)Else:Times + = time_passedFor event in pygame. event. get ():If event. type = QUIT:Sys. exit ()If event. type = KEYDOWN and event. key = K_UP:S = move (s, d)If event. type = KEYDOWN and event. key = K_LEFT:D = dire [tl (dire. index (d)]If event. type = KEYDOWN and event. key = K_RIGHT:D = dire [tr (dire. index (d)]If s [0] = food:

(Featureoption.mtk_gemini_support = = True) { ((geminiphone) phone). Activatecellbroadcastsmsgemini (0,msg, extra); } Else { Phone.activatecellbroadcastsms (0,MSG); } } } } private void Handlesetstateresponse (Message msg) { int simid = MSG.ARG1; if (msg.arg2 = = message_set_state) { AsyncResult ar = (asyncresult) msg.obj; if (AR = null) { LOG.I (Log_tag, "Handlesetstateresponse,ar is null"); Return } if (ar.exception!= null) { if (DBG) LOG.D (Log_tag, "handlesetstatere