concurrency interview questions

IOS interview questions (2) and ios interview questions 1. Q 1. Functions of readwrite, readonly, assign, retain, copy, and nonatomic attributes. 2. When to use delegate and Notification? Iii. Target-Action Mechanism 4. When is the loadView, viewDidLoad, and viewDidUnload of ViewController called? What should I do in

// Const interview question 1.cpp // What does the keyword "const" means in C program? Please at least make two examples about// The usages of Const.// [2005 interview questions for a famous computer embedded company in the United States] // Resolution:// In C Programs, const is mainly used to define constants, modify function parameters, and modify function re

Java --- Java interview questions (1), java --- java interview questions 1. What is a Java Virtual Machine? Why is Java called a platform-independent programming language "? Java virtual machine is a virtual machine process that can execute Java bytecode. Java source files are compiled into bytecode files e

Python interview questions (2) and python interview questions Print the 9-9 multiplication table Train of Thought: output results using a string connection and a trapezoid >>> Def st (num ):... l = []... for x in xrange (1, num + 1 ):... str1 = ''... for y in xrange (1, x + 1 ):... str1 = str1 + '% d * % d = % s' %

Concise answers to several java interview questions, concise java interview questions The difference between equal and = in java: The equal method is used to compare object references unless it is overwritten (such as String class and basic type package class. And ==except for comparing basic types, it is a comparison

C/c ++ common interview questions, interview questions 1. What is the role of static in C? (1) Hide. When we compile multiple files at the same time, all global variables and functions without the static prefix have global visibility. Therefore, we use static to define functions with the same name and variables with th

Mvc: Definition of MVC:M: Business logic processing. "Business model"V: The part that handles the display of the data. "such as XML layout file"C:activity handles user interaction issues. "Activity in MVC plays the role of C." Features of MVC:① and low coupling.②, scalability is good.③ and module responsibilities are clearly divided. An example of MVC is detailed: Summarize:①, the use of MVC design patterns, so that the project has a very good scalability and maintenance.②, contro

Spring Interview Questions and Answers, Spring interview questions Spring Overview 1. What is spring? Spring is an open source development framework for java Enterprise applications. Spring is mainly used to develop Java applications, but some extensions are used to build web applications on the J2EE platform. The Spri

Interview Questions: Differences and connections between distributed and cluster, Interview Questions Cluster I. Differences:In a word, distributed systems work in parallel, and clusters work in tandem.1. Distributed refers to the distribution of different services in different places. A cluster refers to the combinat

Introduction to common interview pen questions, interview pen questions 1. # include # Include Using namespace std; Void main () { Int c = 5; If (c ++ = 5) { Printf ("% d \ n", c --); Printf ("% d", c ); } Else { Printf ("% d", c ++ ); } System ("pause "); } A

C ++ interview questions, interview questions Run the following code: 1 A * pa = new A [10]; 2 delete pa; The constructor and destructor of Class A are executed () times respectively.A.1, 1 B .10, 10 C.1, 10 D.10, 1 Test: # Define _ CRT_SECURE_NO_WARNINGS # include Test results: Because it is delete p rat

Hadoop interview questions (1) and hadoop interview questions I. Q : 1. Briefly describe how to install and configure an apache open-source version of hadoop. You only need to describe it. You do not need to list the complete steps and the steps are better. 1) install JDK and configure environment variables (/etc/profi

Baidu interview questions to find an array that meets the conditions, Baidu interview questions ArrayGiven the sum of the Functions d (n) = n + n, n is a positive integer, for example, d (78) = 78 + 7 + 8 = 93. In this way, this function can be regarded as a generator, for example, 93 can be regarded as generated by 78

Android interview questions (3) and android interview questions 1. Describe the lifecycle of an Activity. Activity lifecycle methods include:OnCreate (), onStart (), onReStart (), onResume (), onPause (), onStop (), onDestory ();Visible life cycle: from onStart () to onStop () called by the System ()Foreground

Android interview questions (2) and android interview questions 1. What is the difference between int and Integer? Java provides two different types: The reference type and the original type (or the built-in type ). Int Is the original data type of java, and Integer is the encapsulation class provided by java

mode. Binder Communication mode:A, telephone base station: Binder Driveb, the communication record: ServiceManagerHere is an example of a comparative image to illustrate the above communication and telephone base station in the binder communication model of the role: a classmate to call the B classmate, first a reunion to find B classmate's phone number, and ServiceManager driver's role is equivalent to the address book, There are some similar phone numbers on both sides of the communicatio

What is ANR?Application Not RespondingThe main cause of ANR:The responsiveness of the application is monitored by the activitymanager and WindowManager system services, which can cause the ANR to be monitored when the main thread in the activity clicks more than 5 seconds to respond or if the wood responds in the broadcast UI thread for more than 10 seconds. Here's a list of the details: The main thread is blocked by I/O operations (the network IO is not allowed in the main thread after

execution.Surround notification is one of the most common types of notifications. Most interception-based AOP frameworks, such as Nanning and JBOSS4, provide only surround notifications.The concept of pointcut (pointcut) and connection point matching is the key to AOP, which makes AOP different from other old technologies that simply provide interception functionality.The pointcut enables the location notification (advice) to be independent of the OO hierarchy. For example, a around notificatio

Java Multithreading and Concurrency basics interview questions and AnswersOriginal link: http://ifeve.com/java-multi-threading-concurrency-interview-questions-with-answers/Multithreading and c