jsp quiz

Q: For Baidu search on-line Aurora algorithm, how should we respond?Ze Industry construction Station NET Webmaster Yang Zeyi Answer: Baidu on May 30, 2018 on-line the Aurora algorithm, aimed at advocating The resource side attaches importance to the website landing page time specification . The time factor of landing page is the important reference for Baidu to search and judge the website to collect, display and sort the result. In order to provide users with a more satisfying search experienc

]; } }define a student class Student, which contains three attribute names, age, and gender, creates three student objects to be stored in a ArrayList collection. A: Iterates through the set traversal output. B: Find the oldest student, let the name of the object become: Gourd Doll. 1ArraylistNewArraylist();2Stu arr1 =NewStu ();3Stu arr2 =NewStu ();4Stu Arr3 =NewStu ();5Arr1.name= "Wang Rongshen";6Arr1.age = 23;7Arr1.sex = "Male";8 Stu.add (arr1);9Arr2.name = "Zhang Rui";TenArr

1, there are 100 integers, which have negative numbers, to find the sum of the three consecutive numbers of the largest part.Example:Input: 2,-8, 3,-2, 4,-10Output: 5 ({3,-2, 4})#include 2, Embedded systems often have features that require programmers to access a particular memory location. In a project, a value of 0xaa55 is required to set an integer variable with an absolute address of 0x67a9. The compiler is a purely ANSI compiler. Write the code to complete the task. #include C Language

1 /*2 returns the first n bits of the string and the first n bits of the returned integer3 */4 5#include 6 7UnsignedLongLeft (unsignedLongNumintn);8 Char* Left (Char* STR,intn);9 Ten using namespacestd; One A intMain () - { -UnsignedLongnum; the intN; -cout "Please enter an integer:"; -CIN >>num; -cout "Please enter the number of digits to intercept:"; +CIN >>N; -cout "before""bit is"Endl; + A Char* str =New Char( -); atcout "Please enter a string:"; -CIN >>str; -cout "Please enter the

same as a normal function.What is the docstring in 20.Python?The python Chinese file string is called DocString, and its role in Python is to generate documents for functions, modules, and class annotations.21. How do I copy an object in Python?If you want to copy an object in Python, most of the time you can use Copy.copy () or copy.deepcopy (). But not all objects can be copied.What is a negative index in 22.Python?The sequence index in Python can be either positive or negative. If it is a po

topic: D (1973): Give Yourself a quiz on the small xSubmit Page Summary time limit:1 Sec Memory limit:128 Mb submitted:38 solved:9 Description Small x Learning Dfs, in order to practice the search, began to play their own topic.Play play, one will put himself stumped, a will be baffled by their own, really interesting ah.Small x out of the problem:Now there are n different positive integers, asking how many such sets they can compose, satisfying:

digits after your study number (ex: dept_165)Note: Each constraint is created in steps. Column Name Data type Description of the column Dno Integer Department Number ( PRIMARY KEY constraint ) Dname CHAR (12) Department Name ( unique constraint ) Build table:Property:To add a PRIMARY KEY constraint:To add a unique constraint:2 , in OEM Create a table as required by the topic stu_ three digits after your study

points)#!/bin/bashdnum=find /etc -type d | wc -lThe number of directories in ECHO/ETC is "$dnum"fnum=find /etc -not -type d | wc -lThe number of files in the echo/etc is "$fnum"Num=$[dnum+fnum]The total number of files and directories in the ECHO/ETC is "$num"Unset Dnumunset numUnset FnumExit20. Write/root/bin/baketc.sh to find files that have not been modified in the/etc/directory for more than 1 days, and compress them back into the/bakup directory. If there is no previous backup, then backup

, logical addressing, packet transmission, routing, ARP,RARP Packet/message transmissionData Link layer--"point-to-point transmission, physical addressing (MAC) frame transferPhysical Layer-"physical media", bitstream transmission7. How to see what service name corresponds to a known port?Lsof-i Port numberNetstat-intup | grep Port number8. How does the route add a network route?Route add 10.41.0.0 Mask 255.255.0.0 10.27.0.1 #添加目标为10.41.0.0, subnet mask is 255.255.0.0, Next hop address is 10.27.

system is consistent after the end of the transactionIsolated isolation: Things that are executed concurrently cannot see each other's middle stateDurable persistence: All changes made after the transaction is completed will be persisted, even if a catastrophic failure has occurred.58. What is data dirty read, Phantom Read, non-repeatable read?Dirty read: The rollback of a transaction is performed after reading to the modified but uncommitted transaction content. In other words, a dog forced to

/-type F-name "*.txt"-exec sed-i ' s#training#oldboy#g ' {} \; [Email protected]~]# sed-i ' s#training#oldboy#g ' find/data/-type f-name ' *.txt ' [[email protected]~]# sed-i ' S#trai Ning#oldboy#g ' $ (find/data/-type f-name "*.txt")1.10 Find/oldboy all 7 days ago the file that is greater than 1M, ending with log, is copied to/TMP.Law one: find/oldboy/-type f-name "*.log"-mtime +7-size +1m |xargs-i cp {}/tmp/Method II: Find/oldboy-type f-name "*.txt"-mtim E+7-size +1m-exec cp {}/tmp/\ Three: C

would the Vectorize this code to run without all for loops? Check all the Apply. A: v = A * x; B: v = Ax; C: V =x ' * A; D: v = SUM (A * x); Answer: A. v = a * x; v = ax:undefined function or variable ' Ax '. 4.Say you has a vectors v and Wwith 7 elements (i.e., they has dimensions 7x1). Consider the following code: z = 0; For i = 1:7 Z = z + V (i) * W (i) End Which of the following vectorizations correctly compute Z? Check all the Apply.

and adds the functionality that some Web applications require. Unlike normal ApplicationContext, Webapplicationcontext can be used to handle theme styles, and it also knows how to find the appropriate servlet.67. What is the controller of the Spring MVC framework?The controller provides access to the application's behavior, typically through the service interface. The controller parses the user's input and translates it into a model that is presented to the user by the view. Spring implements t

1. The rules for Java identifiers are like thisIdentifiers consist of letters, numbers, underscores "_", dollar Sign "$" or the renminbi symbol "￥", and the first letter cannot be a number. That is, in addition to _ $￥ these 3 symbols, identifiers can only have numbers and letters, what parentheses, so that is not part of the identifier.You cannot use keywords and reserved words as identifiers.Identifiers do not have a length limit.String $;String Y2;String idfkd$fff;String ADKYDKJK;String _DJFK

allocation strategy, and briefly describe its principle 12345 轮询：默认的方式，按时间顺序依次分配weight:根据服务器权重进行轮询分配ip_hash:按ip的hash值进行分配，可以解决session保持url_hash:按访问url的hash结果来分配请求，使每个url定向到同一个后端服务器，后端服务器为缓存时比较有效fair:按服务器响应时长进行分配 12, crontab timing: In November, every day in the morning 6 to 12 points, every 2 hours to perform a/usr/bin/httpd.sh how to achieve 1 06-12/2*11*/usr/bin/httpd.sh 13, iptables prohibit IP 10.10.10.1 access to local 80 port

filter?Answer: The tee filter is used to send output to multiple destinations. If used for pipelines, it can copy the output to one file and copy the other to the screen (or some other program).[Email protected]:~$ ll/etc | NL | Tee/tmp/ll.outIn the example above, the LL output can be captured in the/tmp/ll.out file and also displayed on the screen.Q: Export PS1 = "[Email protected]:\ $PWD: What is this command doing?]A: This export command changes the login prompt to display the user name, the

a Windows system, which of the following statements is correct?A. The Linux partition is permanently created on the computer's hard driveB. Linux partitions are temporarily created on the computer's hard driveC. No Linux partition was created Gnome,unity,kde is based on the underlying software to display the graphical interface?A. GrubB. X ServerC. Partitioning software What is the role of the swap partition?A. Storing important software for Linux startupB. Storing files downloaded on the w

RM command do?A. Copying filesB. Deleting a fileC. Upload the file to the networkD. Put the file into the Recycle Bin Which of the following commands can display the first few lines of a file?A. HeadB. TailC. Top What is the command prefix that does not require login (toggle) to run the command as root, which can be root?A. sudoB. BerootC. NowD. Impossible I forgot how to use the mkdir command, what should I do?A. In the Linux forum shouted, "Come on, do me a favor."B. Man mkdirC. Help mk

-text files. LCTT: When used to analyze a binary program that is inexplicably present on your system, you can find suspicious file access, which is useful for tracing the intrusion.Q: What is the function of the tee filter?Answer: The tee filter is used to send output to multiple destinations. If used for pipelines, it can copy the output to one file and copy the other to the screen (or some other program). [Email protected] : ~$ ll /etc | nl | tee /tmp/ll. out In the

guess 0-60 of the number ' read-p ' Please enter your price: "Aexpr $A +1 >/dev/nullif[$?-ne0]then echo "Don't tease me, just guess the Numbers" ipplefi}guess () { if[ $A -eq $NUM ] then echo "guessed right, is $num yuan" exit0elif[ $A -gt $NUM NBSP;]NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;THENNBSP;NBsp;echo "Hey, why don't you buy it at this price?" "ipple elif[ $A -lt $NUM ] then echo "too low and too low" NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;IPPLENBSP;NBSP;NBSP;NBSP;NBSP;NBSP