phone quiz

Here is a topic: A = 3 b = A A = 5 Print (A, B) What is the value of the last output of the program, A/b? Think about it first, and then we'll take a look at the correct answer: The value of correct answer a is 5, the value of B is 3, why doesn't the value of B change with the value of a? Let's analyze Why: Here we first introduce a function ID (), which can look at the memory address of the variable; OK, here's the analysis: Split the program, assign 3 to

Transferred from: http://blog.csdn.net/charles_r_chiu/article/details/478588851. What is a virtual function? What is a pure virtual function?For:The virtual function declaration is as follows: Virtual returntype functionname (Parameter); Virtual functions are introduced for dynamic bindingThe pure virtual function declaration is as follows: Virtual returntype functionname () = 0; Pure virtual functions are introduced to derive interfaces.2, why do the base classes need virtual destructors?A: The

There are 25 questions in total. The test content includes operators, expressions, statements, javascript language features, JSON syntax, arrays, and regular expressions. You can test your knowledge in this area. After the question is answered, I will refer to the original blog post and comment on the question analysis, and everyone is competing. The quiz: 1: 1 3 2: 1 "foo" | 0 3: 1 | "foo" 0 4: (1, 2, 3) 5: X = {shift: []. shift }; X. shift (); 3:

response) throws ServletException, IOException {Object thisIsThreadSafe;thisIsNOTThreadSafe = request.getParameter("foo"); // BAD!! Shared among all requests!thisIsThreadSafe = request.getParameter("foo"); // OK, this is thread safe.} } The first two days in a group saw someone recommend an app called Ask Ah, you can send a question to answer that kind of, feel like Uber drops a taxi like, generally this kind of software comes up to throw money to red envelopes what, elder brother befor

while the Web app is running. They are shared by all requests in the session. All of the properties you set in HttpServletRequest, HttpServletResponse, and HttpSession will remain alive when the object in question survives. Thread SafetyEven so, you may be most concerned about thread safety. You should now learn that the Servlet and filter are shared by all requests. That is one of the advantages of Java, which allows multiple different threads (reading HTTP requests) to use the same i

1 Bits value 32 16 8 4 2 1 Your program reads a nonnegative integer, the range of integers is [0,1000000], and then calculates the binary number that represents the parity by the above algorithm, outputting its corresponding decimal value.tip: To decompose integers from right to left, the digits are added each time 1 , and the binary value is multiplied each time 2 . Input Format :A nonnegative integer in which the range of integers is [

1#include 2#include 3 using namespacestd;4 5 voidMain ()6 {7 inta,b,c;8Srand (Unsigned (Time (NULL)));//change of the guaranteed number of random seed with system time9 for(intI=0;i -; i++)Ten { OneA=rand ()% About+1; AB=rand ()% About+1; -C=rand ()%4+1; - Switch(c) the { - Case 1:cout"+""=" Break; - Case 2:{ - if(AGT;B)//use the IF statement to ensure that Minuend is greater than +cout"-""="Endl; - Else +cout"-""="Endl; A

() {n=Readin (); memset (Head,-1,sizeof(head)); inti,a,b; for(i=1; i) {a=readin (), b=Readin (); Add (A, B), add (B,a); } Minn=1 -; DFS (1,0); for(i=1; iif(F[i]==minn) sta[++sta[0]]=i; for(i=1; i0];i++) printf ("%d", Sta[i]); printf ("%d", sta[sta[0]]); return 0;}View CodePoj1655:balancing ActTest instructions: With POJ3107#include #include#includestring.h>using namespacestd;Const intmaxn=20010;intn,minn,ans,cnt;ints[maxn],to[maxn1],next[maxn1],HEAD[MAXN];intReadin () {intret=0;CharGC; w

Kick Veges 'Descriptionthere are N rookie standing in a row, Jason is going to abuse them in order. Abuse of the first rookie needs to spend A[i] point RP, now Jason intends to divide K days to finish these rookie. Jason's total number of RP per day is fixed, in order to make the RP the lowest time not too low to cause the cup, he hopes that the K-day of the most expensive abuse of the RP Day, the cost of RP as little as possible. Ask Jason how many RP he spends on the day the RP spends the most

/* A. Variable scope a small question */var x= ' a ';function Printx () {Console.log (x);var x= ' B ';Console.log (x);}Printx ();var y= ' C ';function Printy () {Console.log (y);Y= ' d ';Console.log (y);}Printy ();Output result Undefined,b,c,d/* Two. Output results */Alert (null instanceof Object);Alert (Null = = undefined);//trueAlert (nan = = Nan);Alert (false = = undefined);/* three. Examine local variables */function foo (a) {var A;return A;}function Bar (a) {var a= "Bye";return A;}Alert ([f

HTML quiz-1---------------------------------------------------------Date:September 15th, 2012. Result: 65% --------------------------------------------------------- Your answer: 1. What does HTML mean?Your answer: Hyper Text Markup Language) 2. What is the Web Standard maker?Your answer: World Wide Web Alliance (W3C) 3. In the following HTML, which is the largest title?Your answer: 4. Which of the following HTML statements can ins

: Display:table-row; Find 5 errors in the code and correct them with the same semantics: div{Width:auto;Height:none;Line-height:1;text-align:justify;Display:table-caption;Position:none;Visibility:show;Verticle-align:center;List-style:point;}Correct:height:0;position:static;visibility:visible;List-style:: disc;Cursor:point;Five, additional questions (10 points per topic, total 20 points): Use pure CSS to achieve an auto-toggle slideshow Effect: #wrap { position:rela

Package programming;Import Java.util.Random;Import Java.util.Scanner;Public class series Xu {public static void Main (String args[]) {System.out.println ("Please enter the number of topics on a page:");Scanner input = new Scanner (system.in);int n = input.nextint ();int sum=1;System.out.println ("+sum+", "part");System.out.println ("-----------------");for (int i = 0; i int a = new random (). Nextint (100);//random number Aint b = new Random (). Nextint (100);//random number Bint Suijifu = new R

this game is lost, so it can only output "dirty".Details: We have recorded whether each point can be traced back to odd/even points, but it is possible to backtrack, check has been blocked? No way.Because the singularity needs to go back to the odd, and we start with the previous point (even), and even the same.Say this problem can be memory of deep search water? If possible, then the idea should be only to judge a node if it is a section of the beginning of the node, then it can only go forwar

futurequestion: A lot of software engineers who have worked for 2-3 years have talked about career planning as a way of looking to the architect, what advice can I give these growing engineers? How can you become an excellent architect?Answer: In fact, I do not know how to give some effective and specific advice. I don't think an architect is a job or a responsibility, but more like a way of thinking. In fact, as long as open horizons, and constantly absorb and pay attention to the development

C # quiz If you can answer the following questions correctly, you can be invincible in the face of any C # interview pen questions. Of course, this is much easier than C ++'s abnormal questions. For the correct answer, compile and run it. Good luck. 1. What is the problem with the following code? Public Class B{Protected virtual void F () {console. writeline ("B ");}} Public Class D: B{Protected override void F () {console. writeline ("D ");} Public v

Wife company held the world cup quiz activity, the prize is good, there are iPod, DC, and so on, report a name to join a lively. The rule is to predict the outcome and defeat of each game. The correct prediction score is 3 points, and the wrong guess is 0 points. It is special that if the two teams are flattened, the correct prediction score is 3 points, and you can get 1 point if any team wins. This is the first round of prediction for the group mat

Create a project Importing JAR Packages Configure Web. xml 1.web.xml Configuration 2.springmvc.xml Configuration, note that if you customize the location, you need to place it under Web-inf, the name must be Servlet-name name-servlet.xml 3.index.jsp page 4. Springmvcupload ActionPackage Com.springmvc;import Java.io.file;import Java.io.ioexception;importOrg.springframework.stereotype.controller;import Org.springframework.web.bind.annotation.requestmapping;import Org.springframewor

Try not to execute the command. Try to give the result directly and give a reason. This question can help you learn a lot (objects, classes, prototypes, scopes, priorities, and so on), and some friends can also learn a lot. For more information, see the Javascript quiz.

{Statement: Do not reprint} Label. Java /** * Author: * Date: 2007/04/18 * Description: Practical quiz 5 * */ Import java. Io .*; Import javax. servlet .*; Import javax. servlet. http .*; Public class label extends httpservlet {Public void dopost (httpservletrequest request,Httpservletresponse response)Throws servletexception, ioexception { /*** Indicate the content type (for example, text/html ),* Being returned by the response*/Response. setcontent