linux networking interview questions and answers

, the next () method of the iterator throws a Concurrentmodificationexception exception.Concurrent containers support concurrent traversal and concurrent updates.The main classes are Concurrenthashmap, copyonwritearraylist and Copyonwritearrayset, read this article to understand How to avoid concurrentmodificationexception.8. What is the Executors class?Executors provides some tool methods for the Executor,executorservice,scheduledexecutorservice,threadfactory and callable classes.Executors can

keep the original base implementation. We can just inherit from it and rewrite the methods we need. Read the Java futuretask example to learn how to use it.7. What is the implementation of concurrent containers?Java collection classes are fast failures, which means that when a collection is changed and a thread iterates through the collection using Iterators, the next () method of the iterator throws a Concurrentmodificationexception exception.Concurrent containers support concurrent traversal

solves this problem for us. After the online pool submits the callable task, a future object is returned, using which we can know the status of the callable task and get the result of the execution callable returned. The future provides a get () method so that we can wait for callable to end and get its execution results.Read this article to learn more about the callable,future example. 6. What is Futuretask?Futuretask is a fundamental implementation of the future, and we can use it with execut

The day before, I posted an article titled "answers to the questions of Lao Zhao interview (I)". I couldn't help but think about some things. The article I wrote the day before yesterday did not expect that there were so many comments. There were always a few comments that looked quite uncomfortable. I think of a previous instructor who said, "Even if this clas

How many answers can you answer Google's crazy interview questions?The following is an interview question set from Google to see if you can answer it. Many of these questions are open-ended and there are many correct answers, so u

Label:SQL interview questions and answers byLee-Last updated:Friday, May Leave a CommentStudent score Table (Stuscore):Name: Name course: Subject Score: Score No.: StuidZhang San Mathematics 89 1Zhang San Languages 80 1Zhang San English 70 1John Doe Mathematics 90 2John Doe Languages 70 2John Doe English 80 21. Calculate the total number of each person and rank (

Http://tb.blog.csdn.net/TrackBack.aspx? Postid = 585636 Interview Questions and answers for top 500 companies Interview Questions and answers for Fortune 500 companies 　　　　 ◆ 1. There is a rectangular cake that has been cut off (t

The interview questions and answers of Fortune 500 companies prompt the Interview Questions and Answers of Fortune 500 companies Source: Computer World Network Responsible editor: lujiezheng 　　　　 [04-5-27] by Blair Watson (US) 　　

Recently, I wanted to find a job, so I began to make up my basic knowledge. I remember a gentleman on the Internet making a joke: "typing is fast, but I found that I forgot my keyboard layout. I have a lot of experience, but I found that I would not do the question. "It is true that many interview questions can take me for a moment. How nice if Google can carry it with you! Haha Today, I found that ther

operate a microwave oven, what kind of software will you develop to accomplish this?Tasks? 56. How do you design a coffee machine for a car? 56. What content will you add to Microsoft's word system? 57. What kind of keyboard will you design for a user with only one hand? 58. What kind of alarm clock will you design for deaf people? Reference answer: 1. day1 to 1 segment,Day2 asked the worker to return segment 1 to segment 2,Day3 to 1 segment,In day4, return segment 1 and segment 4.Da

115 Java Interview Questions and answers-ultimate list (I), 115 java This article will discuss various types of interview questions in Java interviews, which allow employers to test candidate's Java and general Object-Oriented Programming capabilities. The following section

function, and CURL can all achieve this. If PHP and Java are integrated, PHP has built-in this mechanism (If PHP and. NET integration. For example, $ foo = new Java ('java. lang. system ');5. CVS and SVN. SVN is known as the next generation of CVS and has powerful functions. However, CVS is a veteran with a high market share. I have been using SVN for a long time. The question is what tools are used. Well, this may require the following answers: CVS

Php interview questions and answers $ Img = file_get_contents ('http: // www.baidu.com/img/baidu_logo.gif '); File_put_contents('1.gif ', $ img ); Echo ''; ?> 3, Function is_gfriend ($ na, $ nb) { $ Random1 = rand (1/5); // calculate their fate $ Random2 = rand (1, 5

1. Tell me about your understanding of doctype.2.web Product Development process3. Tell me about your understanding of the box model4. What are the three layers of the front page? What is the role?5. What are the inline elements? What are block-level elements? How do they transform each other?What are the introduction methods of 7.CSS?8. Please use CSS to define 9. Talk about CSS Sprites technology10. In which browsers did you test the page? What are the cores of these browsers? What are the com