icnd1 practice

configuration, you can reach a directory that specifies a separate log file for each projectSummaryHere are some questions to answer"Q" A tomcat loads multiple projects, how can I determine what works in the log?"A" specifies a separate log file for each project, avoiding the issue of outputting multiple project log files to a single file"Ask" multiple tomcat to load the same project at the same time, you can use log4j Dailyrollingfileappender and other file class Appender?Yes, when you specify

After learning simple conditional judgments and loops, do a little exercise and write a program about login.USERNAME,PASSWD temporarily writes dead in the program, subsequent learning how to read from the file.Program Requirements:(1) Let the user enter the account number and password (input)(2) Determine if the username and password are correct (if)(3) Prompt xxx, welcome to login, today's date is XXX, program end (string formatting, placeholder)(4) Wrong words prompt: Account/Password input er

("Please enter the name of the new fruit"); theString A =Sc.next (); theSystem.out.println ("Please enter the number of the new fruit"); the intb =sc.nextint (); -System.out.println ("Please enter the price of the new fruit"); in Doublec =sc.nextdouble (); theChaoshi ARR4 =NewChaoshi (); theArr4.name =A; AboutArr4.id =b; theArr4.price =C; the Arr.add (ARR4); the } + Public Static voidC (arraylistarr) { -System.out.println ("Please enter the number you want to delete");

Definition of successive descent method: For a given set of equations, use the formula:where k is the number of iterations (k=0,1,2,... ）The method of finding approximate solution by stepwise generation is called iterative method If it exists (recorded as), it is said that this iterative method converges, obviously is the solution of the equations, otherwise called this iterative method divergence. Study the convergence of {}. Introducing Error Vectors:Get:Recursion gets:To inve

node - varCreateloginlayer =function(){ - the vardiv = document.createelement (' div '); -div.innerhtml = ' I am logged in to the floating window '; -Div.style.display = ' None '; - Document.body,appendchild (div); + returnDiv; - + }; A at - varCreatesingleloginlayer =Getsingle (createloginlayer); -Document.getelementvbyid (' loginbtn '). onclick =function(){ - varLoginlayer =Createsinglelayer (); -LoginLayer.style.display = ' block '; -}View CodePolicy mode1 varStrategies = {2"

First, Eclipse Configuration Spring boot environment1. View the Eclipse version information;2. Login: Http://spring.io/tools/sts/all see eclipse information corresponding to the plugin version of EclipseObviously my eclipse version is too low, there is no corresponding spring boot tools version, to the Eclipse website to download a new versionInstall spring boot tools to install the plug-in in Eclipse 1:help-->install New software-->work with input http://dist.springsource.com /RELEASE/TOOLS/UPD

(!asleep)Countsomesheep ();The program keeps counting sheep when it's not asleep and jumps out of circulation after falling asleep. Because the update to asleep is done in other threads, there is no way for ordinary variables to get the asleep value in time, so it is very appropriate to use the volatile variable.Note that the volatile variable can only guarantee visibility, that is, the variable will always be consistent with the memory variables, but there is no way to ensure atomicity, so if

-za-z]"," ", Sent.lower (). Strip ()). Split () in sentences.append (temp) - to returnsentences + - #The sentences in the long news are stripped out for training . thesentences = [] * forIinchx: $Sentence_list =news_to_sentences (i)Panax NotoginsengSentences + =sentence_list - the + #Configure the dimension of the word vector ANum_features = 300 the #the frequency of the words that are to be considered +Min_word_count = 20 - #number of CPU cores used in parallel computing $Num_workers =

conversion. Or with the%f type output??Feel the sense of that.Exercise 1-3 continuous and (sum)1#include 2 intMain ()3 {4 intN;5scanf"%d",n);6printf"%d", N (n+1)/2);7 return 0;8}Exercise 1-4 sine and cosine (sincos)1#include 2#include 3 intMain ()4 {5 Const floatPi=4.0*atan (1.0);6 intN;7scanf"%d",n);8printf"%LF%LF", Sin (n*pi/ the), cos (n*pi/ the) );9 return 0;Ten}The key is math ...Exercise 1-5 distance (distance)1#include 2#include 3 intMain ()4 {5 floatx1, x2, y1, y

function () { var arr = [1,2,3,4,5,6,7,8,9 ]; var num = 3; Alert (Arr.join ("). IndexOf (num));}; Generate 500 0-1000 random numbers array lookups-little practice

Wikipedia's article as an unordered list.RunCommand line RunCopy that four rows listD:\>cd D:\Code\VimCode\Python_auto\RunD:\Code\VimCode\Python_auto\Run>python bulletPointAdder.pyScript RunStep Analysis:1. Clipboard copy and paste, using Text=pyperclip.paste (), this is not difficult, simple to use the Pyperclip library. Paste () and. Copy () on the line2. Detach the lines in the text and add an asterisk. line = Text.split (' \ n ').3. Link line after processing. Text= ' \ n '. Join (lines)Cod

scripts may also switch directories[Email protected]:~$ pushd/var/www/html/var/www/html ~[email protected]:/var/www/html$The above command saves the current directory to memory and then switches to the requested directory. Once poped is executed, it will remove the saved directory location from memory as the current directory[Email protected]:/var/www/html$ popd~[email protected]:~$14. Switch to a directory with a blank name[Email protected]:~$ cd test/tecmint/[email protected]:~/test tecmint$O

another terminal, modify the user permission of Dir directory in turn)5) Create a new file in Dir directory Tom.txt, the owner is Tom, the group is the Group1,/test directory permissions of 7776) New user rose, switch to Rose User, verify the Rose User's rwx permissions to Tom.txt (open another terminal, modify tom.txt others permissions to match the verification process)7) Add rose to the group1 group and, under the Rose user, verify the rwx permissions of the rose user to Tom.txt (open anothe

to the content of these two blog posts, there is basically no password to login to the remote host. Based on this, you can deploy the cluster management tool or write a parallel command execution script, the remote host configuration system, or unified modificationFor example:1. Modify the hostname according to the IP address of different host2. Copy the following files to the remote host:/etc/hosts;/etc/selinux/config;/etc/ssh/sshd_config;/etc/ssh/ssh_config;/etc/pam.d/sshd;/etc/secutity/ ACCE

/disconf-rd/logs/error.log; Location/{ root/home/jason/app/disconf-rd/war/html; if ($query _string) { expires max; } } Location ~ ^/(api|export) { proxy_pass_header Server; Proxy_set_header Host $http _host; Proxy_redirect off; Proxy_set_header x-real-ip $remote _addr; Proxy_set_header X-scheme $scheme; Proxy_pass http://disconf; }}The port in the upstream disconf configuration must be the same as the Tomcat-in

}##############################################################A= $spaceline 1b= $spaceline 2echo "The Space_line:"CompareEchoA= $line 1b= $line 2echo "The line:"CompareTest results:[Email protected] ~]# bash test6.shPlease enter the file path:/root/aa/root/bbThe Space_line:Max/root/aa/root/aa:2The line:Max/root/bb/root/bb:11[[email protected] ~]# cat AAAaaaaaaaaaaaaaaaaaAaaaaaaaaaaaaaAaaaaaaaaaaaaaaaaaa[email protected] ~]# cat BBbbbbbbbbbbbbbbbbbbbbbABCCccCcccDDC8. Write a script(1) Prompt the

depth option to enable the Find command to do so. One reason for this is that when you use the Find command to back up the file system to tape, you want to back up all the files first, and then back up the files in the subdirectories.The instance 1:find command starts at the root of the file system and looks for a file named Con.file.Command:Find/-name "CON. FILE "-depth-printDescriptionIt will first match all the files and then go to the subdirectory to find12. Using the Mount option:You can u

-r ' s#.* ([A-Z ]$) #\1# ' C method 13 [[emailprotected]shell]$echo $a |awk-F/ ' {print $NF} ' C method 14 [[emailprotected]shell]$echo $a |awk ' {gsub (". * *", "", $ );p Rint} ' C method 15 [[emailprotected]shell]$echo $a |awk ' {split ($0,array, "/");p Rintarray[3]} ' C method 16 [[emailprotected]shell]$echo $a |awk ' {split ($0,array, "a/b/");p rintarray[2]} ' C method 17 [[emailprotected]shell]$echo$ a|awk ' {sub (/[^c]+/, "");p Rint} ' C method 18 [[emailprotected]shell]$echo $a |awk ' {

　Redis is an open source (BSD licensed), memory-stored data structure server that can be used as a database, cache, and Message Queuing agent.Sometimes, in order to improve the performance of the entire Web site, the data that is frequently accessed is cached at development time, which can improve the efficiency of data loading when the data interface is called.This article will integrate Redis in the boot project, caching common data to REDIS servers and improving the concurrency of common serv

problem, but this is not a thread-safe way.if 0 ) worker. Interrupt ();Random thread breaks are risky because any framework or third-party method can accidentally receive interrupts on the subscribed code when it calls the stack. If this method is not designed to be interrupted (no proper handling of the finally block), there may be no useless state, or the resource is not completely released. If you know exactly where to break, it is safe to interrupt a thread, such as a signaling system.Abort