tricky interview questions

I attended a data analysis interview with a company in Hangzhou this afternoon. I am familiar with some of the questions, but I didn't give the best answer. Share: Data Structure: Name category cost Li weixing movie 30 Li weixing 100 Li weixing 500 Wang weixing 500 Wang weixing 100 Wang weixing clothes 700 display effect: prenamecodeclasssql name I attended a data analysis

5 excellent answers and Analysis of Python interview questions, and python questions The main content of this article is to share with you several T questions in the Python interview, and give the answer and analyze it as follows. The original article in this article is 5 Gr

Asp. net interview questions and asp.net interview 1. Differences between ref and out 2. Three a labels have no id, no name, and no class. How to select the second a label and use jquert to select 3. What is the difference between a set, a generic set, and an array? 4. What is the difference between string and stringbuilder? The string object cannot be changed. E

Several common js interview questions and js interview 1. About the number type conversion in "+" and "-" Var a = ''+ 3; // try to convert 3 to the string var B = 4; console. log (typeof a); console. log (a + B); console. log (a-B); // try to convert the string to numbervar foo = "11" + 2 + "1 "; // Add a string '1' and subtract a string '1. log (foo); console. l

How can I make an element invisible through CSS? (Interview questions), css interview When I saw this problem during the interview, I thought it was not comprehensive. I will sort it out and study it together: I. Hide CSS ElementsIn CSS, there are many ways to hide elements (invisible to the naked eye within the screen

PHP interview questions and answers, php questions and answers. PHP interview questions and answers, php questions and answers 1. write a function to convert the string open_door to OpenDoor and make_by_id to MakeById. Functionstr

This article describes in detail a javascript interview question that is easily overlooked, if you are interested, you can refer to this question as the last question in a set of front-end interview questions. It is used to assess the comprehensive JavaScript capabilities of the interviewer. Unfortunately, it will be nearly two years since then, almost no one can

Java interview questions, java questions1. simple principles and applications of the Exception Handling Mechanism in C ++ or Java.When a JAVA program violates the JAVA Semantic Rules, the JAVA Virtual Machine will indicate an error as an exception. There are two types of violation of Semantic Rules. One is the built-in semantic check of the JAVA class library. For example, if the array subscript is out of t

JQuery Interview Questions and AnswersJavaScript is the standard language for client-side scripting, and jQuery makes it easier to write JavaScript. You can achieve more with just a few lines of jquery code. It is one of the longest used JavaScript libraries, and there are few new projects that use native JavaScript without jquery. For you as a Java Web Developer, it means you'll find many of the jquery

. NET basic interview questions and. net questions I graduated this year and have some temporary preparations before the interview during my job search this semester. The following answers to the interview questions shared by Lao

7 JavaScript interview questions for true and false javascript questions The following seven JavaScript interview questions should be asked before the interview. Otherwise, your time may be wasted.1. What are the two methods for c

[Interview] interview questions for iOS development (1) 　 1.# What is the difference between import and # include? What is the difference between @ class and # import A: # import is the keyword used to import the Objective-C header file. # include is the keyword used to import the C/C ++ header file. The # import header file is automatically imported only once an

1 , what are the aspects of object-oriented features ?　　The object-oriented programming language has 4 main features: encapsulation, inheritance, abstraction, polymorphism, etc.Details:http://www.cnblogs.com/guweiwei/p/6599289.html2 , access modifiers public,private,protected, and what is the difference between not writing (the default)? 　　Defaults to default when members of a class do not write access adornments. The default is equivalent to exposing (public) to other classes in the same packag

: The above can solve the POST request garbled problem. There are two garbled methods for GET request Chinese parameter:Modify the Tomcat profile add code to match the project code as follows: Another way to re-encode parameters: StringuserName =newString (Request.getparamter ("UserName"). GetBytes ("Iso8859-1"), "Utf-8") Iso8859-1 is the tomcat default encoding, and the Tomcat encoded content needs to be encoded by utf-8What is

Java's current heat has declined, but there are still a lot of people who learn java. Java's post is also a lot of infiltration. So, those classic Java knowledge points, you can see the problem can say 123? Come and have a look.The difference between 1.JDK and JRE What is the difference between 2.final, finally, and finalize?3. The difference between threads and processesHow does the HashMap in 4.Java work?What is the purpose of garbage collection in 5.Java? When does garbage collection take pla

requirements graphically in various phases of software development; IBMRational Rose is one of the many UML modeling tools in the requirements phase, often used in drawing examples, class diagrams, sequential graphs. 15. Describe the tool class that you exported, and indicate the maximum amount of data POI (combining cell objects and background color applications) Finally here also found some of Baidu Library interview

PHP classic interview questions and php classic questions This article analyzes in detail the typical PHP interview questions. Share it with you for your reference. The details are as follows: I did some php questions on the Inter

: This article mainly introduces the basic questions about PHP interview questions. if you are interested in PHP tutorials, please refer to them. 1. What methods do you use to solve the traffic issue for websites with large traffic volumes? First, check whether the server hardware is sufficient to support the current traffic. Second, optimize database access. Th

in school, the interviewer hopes to learn whether the candidate thinks that he or she is not able to solve the problem. 　　 Wrong answer (for those with poor scores) I don't know, look at Dan 　　 Quayle (the Translator's note, an American politician) is certainly doing well-but his average score is only C. I don't think the score can do much. 　　 Wrong answer (for those with good scores) Yes, I think, if you can achieve this in a good school like me, that means you can succeed at work. 　　 Commenti

). Apache directory settings can implement this function. For details, see http://blog.csdn.net/mygood322/article/details/7582531. The upload directory is generally set to a large directory for a user. Directory can be divided into multiple specific directories. To prevent repeated image uploads, you can: Prohibit Multiple submission buttons in a short period of time (JS control, the upload button becomes invalid several seconds after the button is clicked ); To prevent the refresh and submit b