udacity classroom

Web Storagethe concept and cookie Similarly, the difference is that it is designed for larger capacity storage. Cookie The size is limited, and every time you request a new page Cookie will be sent in the past, this virtually wasted bandwidth, you cookie also need to specify the scope, not cross-domain calls. besides, web Storage have setitem,getitem,removeitem, Clear cookie need front-end developer Package setcookie ,getcookie . but cookie is also not available or m

Question OneWrite a method that uses the above algorithm to generate a random integer of a specified number (for example, three). Answer: xn+1= (7^5*XN) mod (2^31-1)Program source code :import java.util.Random;import Java.util.Scanner; Publicclass Randomcount{ PublicStatic void Main (string[] args){Random rand=new random ();System. out. Print (" Please enter the number of random numbers you want to output:");Scanner in =new Scanner (System. in);int n,x;N=in.nextint ();X=rand.nextint (100); for

1. Why is Java specified as the main entry point of the program is static?Because static methods do not have to establish objects, the main function of the program must be referenced.2. Scope of variablespublic class Fun1 {private static int v=1;public static void Main (string[] args) {int v=2;System.out.println (v);}}Result is 23. The reason why the double type is inaccurateis related to the binary inside the computer4.Package fun;public class Fun2 {public static void Main (String args[]) {int

1. Use display for double-sided bug float2.3 MP problem using float caused by use of dislpay:inline-3px3. Hyperlink hover After click fails to use the correct writing order link visited hover active4.Ie z-index problem add position:relative to Parent5.Png Transparent use JS code to change6.min-height min Height! Important Solution '7.select hiding under IE6 using IFRAME nesting8. Why there is no way to define a width container around 1px (IE6 default row height, using over:hidden,zoom:0.08 line-

from the content in your coffeescript source file--In most cases it's very readable, but you still need to change your mind. The biggest problem now is that there is a steep learning curve for any new members who join the team because they have to learn a new language. Most of the online examples (99%) are written in JavaScript. The team began to lose part of JavaScript skills. Slowly, the JavaScript code begins to read like a different language, and we hope everything we see is coffeescr

also write absolute path[[email protected] 2text]$ ln-s/home/xiaoshui/f1 f111[[email protected] 2text]$ ls-ltotal 0lrwxrwxrwx 1 Xiaoshui Xiaos Hui 16:14 f111-/home/xiaoshui/f1Hard links: It can be understood that a person has two names, hard links are the same, it has multiple filenames, and each file name points to the same inode number, because the hard link is a file with the same inode number only different file name, so deleting a hard-link file does not affect the other have the same inod

I. Description of the Catalogue1.1 Bin General user, executable system built-in commands1.2 Sbin system administrator, executable system built-in commands1.3 Boot boot file directory, start the relevant files are saved in this1.4 Dev Device Management files, such as mobile hard drives, USB drives, optical drives, etc.1.5 Home User home directory, in general: A user will have a corresponding folder, named after the user name1.6 lib dynamic link library shared library, type. dll file library for W

Clear screen, restart and shutdown operationClear Screen Command: ClearRestart command: RebootShutdown command: Halt, shutdownSystem Information and host name viewsystem memory Hardware Information view: Cat/proc/meminfoSystem CPU Hardware Information view: Cat/proc/cpuinfoOperating System Information view: UNAME-AHost name view: hostnameNetEase Cloud Classroom _linux Operating system introduction (embedded development 0 Basic Ⅰ) _ 23 Simple system op

Lesson 30 user additions and deletions and viewingUser additions and deletionsUser Add Command: UseraddUser Delete command: UserdelUser ViewView Current user commands: WhoAmIView all login user commands: WhoUser ID view command: IDLesson 31 User SwitchingUser SwitchingInter-user Switch command: su commandUser temporarily gets admin authorization command: sudo command nameLesson 32 User Account ConfigurationUser account lockoutUser account lockout: usermod-lUnlocking the user account: Usermod-uUs

acceptance method. In addition, in class, the teacher to focus, difficult to explain also give full play to the advantages of traditional teaching, the remedy. For easier on-line self-search resources, collation analysis of the problem, will also arrange a special person, after the course to understand the research process to write to the blog for your reference. At a time when this information is highly inflated, we can find all kinds of Daniel from the resources of the network, and understand

.cA makefile mainly contains a series of rules, as follows:Target files: Dependent files(tab) (tab) You must have a tab symbol before each command line . The makefile file above is intended to compile a HelloWorld executable file. Let us explain in one sentence: HELLOWORLD:FILE1.O file2.o: HelloWorld relies on file1.o file2.o two target files. GCC file1.o file2.o-o HelloWorld: compiles the helloworld executable file. -O indicates the target file name you specified. file1.o:file1.c file2.h: FILE1

;/dir01/fil01then use rm-rf/dir01/fil01.Disk1 PartitioningSingle disk partitioning tool fdiskLogical Volume Management LVM Multi-Disk Management2 Creating the file system:Ext4/ntfs/fat32Mkfs.ext4/dev/sdb1A file system was created on this partitionPvcreate/dev/sdb/dev/sdc/dev/sddPvdisplay/dev/sdbPvscanVgcreate VG01/DEV/SDB/DEV/SDCVgdisplay vg01VgscanLvcreate-l 550m-n lv01 vg01Lvdisplay/dev/vg01/lv01LvscanMkfs.ext4/dev/vg01/lv01Mount/dev/vg01/lv01/dir01Df-hLv ExtensionLvextend-l +1G/DEV/VG01/LV01L

AccountUsermodDelete UserUserdel LisiGroup account ClassificationPrivate Group Standard Group Main group Secondary GroupPrivate Group When creating a new user account, if you do not specify which group the user belongs to, then Linux creates a group that has the same name as the user, which is the private group, which is the only user in this private group. Standard Group also known as a common group, can contain multiple user accounts, if you use a standard group, then when creating a new user

;Practice using Virtual machine server instead of a real machine kiosk as an exampleHost sideVim/etc/rsyslog.conf650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M02/9D/91/wKiom1mB7_6CfQVRAAAjgLU7ETs124.png "title=" Screenshot from 2017-08-02 23-29-30.png "alt=" Wkiom1mb7_6cfqvraaajglu7ets124.png "/>650) this.width=650; "src=" Https://s2.51cto.com/wyfs02/M01/9D/91/wKiom1mB7lKDeshHAABOqXL3sUo296.png "title=" Screenshot from 2017-08-02 23-22-44.png "alt=" Wkiom1mb7lkdeshhaaboqxl3suo296.png

().configure(); // 生成factory对象 factory = cfg.buildSessionFactory(); } // 获取Session对象 public static Session openSession(){ return factory.openSession(); } } Session interface1. 概述 * Session是在Hibernate中使用最频繁的接口。也被称之为持久化管理器。它提供了和持久化有关的操作，比如添加、修改、删除、加载和查询实体对象 * Session 是应用程序与数据库之间交互操作的一个单线程对象，是 Hibernate 运作的中心 * Session是线程不安全的 * 所有持久化对象必须在 session 的管理下才可以进行持久化操作 * Session 对象有一个一级缓存，显式执行 flush 之前，所有的持久化操作的数据都缓存在 sess

: Object type detection between different window or IFRAME cannot use instanceof!{%note danger%} can be used to detect custom objects and native objects {%endnote%}[1, 2] instanceof Array === truenew Object() instanceof Array ===falseObject.prototype.toString.apply (){%note%} is suitable for built-in objects and basic types to detect null compatibility issues {%endnote%}Object.prototype.toString.apply([]); === "[object Array]"Object.prototype.toString.apply(function(){}); === "[object Function]"

First, the language modelDesigned to: Calculate a joint probability for a sentence or a group of wordsRole: Machine translation: Used to differentiate translation results Spelling correction: A misspelled word is more likely to be the word, so the correction Speech recognition: The probability of speech recognition coming out of this sentence is greater Summary or question answering system Related tasks: On the basis of the original sentence, the conditional probability

matrix of the largest sub-matrix X1, and then move Make up a new matrix and then find the maximal sub-matrix X2 ... Move one column to the right, forming a new matrix and finding the maximum sub-matrix xn. Compares the size of the X1,X2......,XN and outputs the maximum value to the position. Iv. Source Code#include 　　Five, run six, knot to summarize this topic has been done many times, can say has been done rotten. But each time the subject requirements are different, the teacher always on the

(hang=0;hang3; hang++)Ten { OneA[hang][lie]=a[hang][lie+1]; A } - } - for(cw2=0;cw23; cw2++)//the value of the last column is the first column that was just saved the { -a[cw2][4]=FLAG[CW2]; - } -}Four, Experience:We've only finished part of the experiment, and we've had difficulties with this part of the last two-dimensional array, so we missed this step. Or part of the code. But the mind and the structure are still intact.Knot pair development advantages also h

{ -Sum =sum+A[j]; - if(sum0) - { - //printf ("Overflow! "); -sum=0; in } - if(Sum >Max) to { +Max =Sum; - } the } * } $ Panax Notoginseng return 0; -}Iv. Test and operation results:Five, Experience: This time the experiment we wrote on the basis of the original, the program automatically generated 1000 numbers, this aspect is not a problem. The result is not always correct. Ou