backend interview questions and answers

as needed. You can only observe the door once, what method do you use to differentiate which switch controls the lamp? Interesting interview questions There are three answers to this question:RMB 1 and RMB 2 respectively earned RMB 2 for two times.2, 3 yuan, this person initially spent 8 yuan, and finally took back 11 yuan, the difference between the two, for 3

33 common php questions and answers 1. in PHP, the name of the current script (excluding the path and query string) is recorded in the predefined variable (1), and the URL linked to the current page is recorded in the predefined variable (2). The code is as follows:A: echo $ _ SERVER ['php _ SELF ']; echo $ _ SERVER ["HTTP_REFERER"];2. the execution segment will be output (3 ). The code is as follo

Core Java Questions and Answers (1-33), answers1-33Preface Http://www.journaldev.com/2366/core-java-interview-questions-and-answers.What are the important features of Java 8? Java 8 was released in March 2014, which is very common in Java interviews. If you can answer this question clearly, you are not out and would li

Here are 5 interview questions to continue the previous questions and answers about Linux interviews. If you are a tecmint reader, I am very grateful for your support. 1. Write a shell script to get the current date, time, username and current working directory. Answer: The output username, current date and time, and

. Because the HASHMAP internal implementation uses key hashcode to determine where value is stored, it is faster than other objects. This is why we usually use string as the HashMap object.16, string programming question 1, the following code input whatString s1 = new String("abc");String s2 = new String("abc");System.out.println(s1 == s2); Enter false 2. What does the following code enter?String s1 = "abc";StringBuffer s2 = new StringBuffer(s1);System.out.println(s1.equals(s2));

.equals (S2));Enter false because S2 is not of type string, and the Equals method of string is type-judged.3. What does the following code enter?"ABC"; String ("abc"); S2.intern (); System.out.println (S1 ==s2); The output False,intern () method returns a reference to the string object from the string pool, but since we have not assigned to S2,S2 no change, if the third line of code is S2 =S2.intern (), enter true.4. The following code will create several string objects.String ("Hello"); Stri

. 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

I will summarize some common android interview basic questions to see how many questions can you make? 1. What are several intent startup methods? Do you understand each meaning? Here, android123 reminds you that some intent tags include flag_activity_brought_to_front, flag_activity_clear_top, struct, struct, flag_activity_multiple_task, and flag_activity_

This article mainly introduces 33 common php interview questions and answers, which are frequently encountered during interviews. Let's take a closer look. 1. in PHP, the name of the current script (excluding the path and query string) is recorded in the predefined variable (1), and the URL linked to the current page is recorded in the predefined variable (2).

, SortedList5, HashTable6, Bit Array55) What is a thread?A process is a single execution of a program, a process that contains one or more threads, and a thread is the basic unit of dispatch and resource allocation. A thread has three states, blocking, running, and ready.56) Enumerate the attributes and methods of the thread class?CurrentCulture, CurrentThread, CurrentContext, IsAlive, Isthreadpoolthread, IsBackground, priorityWhat are Access Modifiers?1, public any place can access2. Private cl

This article mainly introduces 33 common php interview questions and answers, which are frequently encountered during interviews. let's take a closer look. 1. in PHP, the name of the current script (excluding the path and query string) is recorded in the predefined variable (1), and the URL linked to the current page is recorded in the predefined variable (2).

classifies frequently-encountered computer programming questions, hoping to help and inspire readers. Chapter 1 thinking and Intelligence Testing 18th this type of interview questions puts forward higher requirements for the interviewer. Questions about thinking expansion can be divided into two categories. One is thi

Microsoft interview questions Interviewing at Microsoft used to be different from interviwing at other companines. However, with the advent of a new economy and the internet things have changed dramatically in the past few years. More and more companies are adopting Microsoft interviewing philosophy and hence their questions. Here is a typical set of

functions. They are used to reflect the status of the class respectively. For example, a class member variable can be used to count the number of class instances. class member functions are responsible for such statistical actions.60. ASP. NET compared with ASP, what are the main advances?A: asp interpretation form and aspx compilation form help improve the performance and protect the source code.61. generate an int array with a length of 100 and insert 1-100 randomly into it, which cannot be r

tougher questions asked in job interviews. If you can smoothly supply answers like these during the interview, you are bound to make a good impression. 1. What is important to you in a job? Mention specific rewards other than a paycheck for example, challenge, the feeling of accomplishment, and knowing that you have made a contribution. 2. Why do you want to wor

During the interview, you are usually asked to fill in two tables. One is your detailed information table, and the other is the answer to the questions.Both of them should pay attention to whether there are content in the anti-positive aspect. If you test your server, there are usually two types, that is Program Connect to the database or some basic Algorithm (Binary Search, recursion, etc.), the company generally tests whether your basic skills are s

been rejected because his hobby is deep-sea diving. The examiner said: because this is a single activity, I am not sure whether he can adapt to group work. 24. Give me a score as the subjectA tip: Try to list four advantages and one very, very, very small Drawback (you can complain about the facility and there will be no one to mind if the owner is not clear ). 25. How do you understand your position?Tip: Describe the job responsibilities, tasks, and attitudes. 26. What do you like about

Computer Network interview questions, computer network questions 1,OSI Layer-7 protocol,Layer-4 TCP/IP protocol,Five-Layer Protocol mentioned in instructor Xie xiiren's online textbookComparison Note: (1) OSI's layer-7 protocol is only a theoretical protocol, which is not actually used. (2) the architecture of the layer-4 TCP/IP protocol in practice. (3) The fiv

Summary of interview questions and summary of questions 1. Describe the animation mechanism in detail2. Describe the event mechanism3. Description: Measure and Layout. Draw process. When the size of a subclass changesWhat kind of chain reaction will it cause?4. What are the four main components of Android? 4 startup modes of Activity5. Start the Service in two w

1. The purpose of this article is not to provide guidance for the job interview of C/C ++ programmers, but to analyze the connotation of interview questions technically. Most of the interview questions in this article come from major forums. Some