css3 interview questions

Java interview 30 Question 1: What are the differences between final, finally, and finalize.Second, can anonymous inner class (anonymous internal class) be extends (inherited) other classes, or implements (implemented) interface (Interface )?Third, the difference between static nested class and inner class is that the more you say, the better (the more general the interview

memory, can be controlled by the parameter max_heap_table_size the memory table size, set this parameter, you can limit the memory table maximum size.2. If the data is temporary and required to be immediately available, it can be stored in the memory table.3. Data stored in the memory table, if suddenly lost, will not have a substantial negative impact on the app service.What kinds of data structures are there in the Redis database? 5 Types of data structuresStringWhen using string, redis** doe

1 Why did you leave the company?2 What are your best skills?3 What have you solved so far to make yourself feel valuable?4 Basic python issues?5 most familiar frameworks, like Django?6 What do you know about processes, threads, and co-routines?7 understanding of MySQL, common query, index understanding, Federated query, classification usage, design and optimization?8 usage scenarios for non-relational database Redis?9 How to use Message Queuing, understand?10 Talk about the skills you describe o

rl.htmlbcadafebdabe_oldgirl.html ecbdeabdaedceb_oldgirl.html Fbfdedccbcc_oldgirl.html[email protected]:/tmp/ shelltmp#Method 2: Replace the file name with SED, and then change the file name with MVCode#!/bin/bash#date:2017-8-25#author:xianweipath=/tmp/shelltmp[-D "$Path"] | |Exit 0 #如果测试结果为假, execute mkdir statement CD $Pathfor oldfile in ' ls $Path/|grep oldboy ' do newfile= ' echo $oldfile| Sed s/oldboy/oldgirl/g ' #生成新的文件名 mv $oldfile $newfiledone waitInterview 3: Create users and Passwords

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/71/B3/wKiom1XW4BagvgPxAAC_N_Bdskw467.jpg "title=" Qq20150821162310.png "alt=" Wkiom1xw4bagvgpxaac_n_bdskw467.jpg "/>1, according to the frequency of word occurrence descending sort! 2, in descending order by the frequency of letters! thesquidprojectprovidesanumberofresourcestoassist usersdesign,implementandsupportsquidinstallations.pleasebrowse Thedocumentationandsupportsectionsformoreinfomation Solution:cat Test.txtthesquidprojectprovid

take out 1 position: Product: 4 The consumer takes out from 0 position: Product: 2 producer put in 0 position: Product: 5 consumer removed from 0 Position: Product: 5 producer put in 0 position: Product: 6 consumer is removed from 0 position: Product: 6 producer put in 0 Location: Product: 7 producer puts 1 position: products £ º The producers are placed in the location of the product: 8 Position: Product Consumer removed from 1 position: Product: 9 consumer removed from 0 positions: Products:

object. Conversely, when Getfullname () is assigned to the test variable, the context refers to the Global Object (window). This is because test is a property that is implicitly set to the global object. For this reason, the function returns the FullName of the window, that is, the value defined in the first row. Question 5:call () and apply ()Now let you solve the previous problem and make the final Console.log () print Aurelio De Rosa. Answer The problem can change the function context by fo

Defines a two-dimensional array n*m (where 2int maze[5][5] = {0, 1, 0, 0, 0,0, 1, 0, 1, 0,0, 0, 0, 0, 0,0, 1, 1, 1, 0,0, 0, 0, 1, 0,};It represents a maze, of which 1 represents a wall, 0 means that the road can be walked, can only walk sideways or vertical walk, can not be inclined to walk, asked to compile the program to find the shortest route from the upper left to the lower right corner. The entry point is [0,0], and the first space is the way to go.InputA NXM two-dimensional array that rep

) {MapNewHashmap(); Premiumphone.put ("Apple", "IPhone"); Premiumphone.put ("HTC", "HTC One"); Premiumphone.put ("Samsung", "S5"); Iterator Iterator=Premiumphone.keyset (). iterator (); while(Iterator.hasnext ()) {System.out.println (Premiumphone.get (Iterator.next ())); Premiumphone.put ("Sony", "Xperia Z"); } } }"Main" java.util.ConcurrentModificationException at java.util.hashmap$hashiterator.nextentry (Unknown SOURCE) at Java.util.hashmap$keyiterator.next (Unknow

wrapper type , which means that the wrapper type can be converted directly to the base data type , as shown in the following code:int m=100; Integer im=int N=im; The appeal code directly assigns m to the wrapper object IM, which is automatically boxed and then directly assigns the IM to the basic data type N, which is the automatic unpacking. Although the code on the surface is simple and convenient, however, in essence, the container still uses new to create the object, while unpacking is s

(throughput) collector? The throughput collector uses a parallel version of the new generation garbage collector, which is used for medium-sized and large-scale data applications. The serial collector is sufficient for most small applications, which require about 100M of memory on modern processors. 41. In Java, when can objects be garbage collected? This object can be recycled when the object becomes inaccessible to applications that currently use the object. 42. Will garbage collection occur

environment. The Web container is more of a deal with HTTP-based requests. And the EJB container is not. It is more about dealing with databases and other services. But they are all interacting with the outside world to reduce the burden on the application. For example, the servlet does not care about the details of HTTP, directly referencing the environment variable session,request,response, EJB does not care about the database connection speed, various transaction control, directly by the con

entire content of the situation load local content, reduce the amount of data transmission, avoid users constantly refresh or jump page, improve the user experienceDisadvantage: Unfriendly to the search engine, the cost of the front-back function under Ajax is large, and the number of requests may increase the cross-domain problem limit;JSON is a lightweight data interchange format, a subset of the ECMAPros: Lightweight, easy to read and write, easy to machine (JavaScript) parsing, support for

allowed: 406 Not acceptable: 407 Proxy Authentication Required: 408 Request Timeout: 409 Conflict: 410 Gone: 411 Length Required: 412 Precondition Failed: 413 Request Entity Too Large: 414 Request-uri Too Long: 415 Unsupported Media Type: 416 Requested Range not satisfiable: 417 Expectation Failed: 5XX: Server Error $ Internal Server Error: 501 Not implemented: 502 Bad Gateway: 503 Servi

Do not write any scopes (that is, access rights) represent friendlyPublic, the largest, the largest scope, within the class, the same package, descendants class, other package can be accessedProtected protection, can be accessed within the class, the same package, descendant classes, but other package cannot accessFriendly friendly, within the class, the same package can be accessed, descendant class, other package cannot accessPrivate, minimal permissions, minimal scope, access within the class

Microsoft Interview hundred questions 004 1. to the effect of the topic:Give a binary lookup tree BST define the path: from the root node to the leaf node termination is treated as a path definition path and: the sum of the weights of all nodes on the path and given a weight, request a path to meet the right value and all the paths 2. Ideas for solving problems:Because we're asking to solve all the situa

Google Interview questions: In a country with a preference for boys, every family wants to have a boy, and if the child is a girl, regenerate one, until the boy is born, so the proportion of men and women in such a country will be much. Answer: 1:1 Analysis:The probability of birth is 50%, so the sex ratio is the same for each birth. Topic of Ali: A country is very patriarchal, if a family gave bir

20 Linux Command interview questions and answers below:Q: 1 How do I see the running level of the current Linux server? A: The ' who-r ' and ' runlevel ' commands can be used to view the running level of the current Linux server. 　　 Q: 2 How to view the Linux default gateway? A: With the "Route-n" and "NETSTAT-NR" commands, we can view the default gateway. In addition to the default gateway information, the

C + + Overload related interview questions Table of Contents 1. What is an overload, what is the definition of the overload. 2. Overloaded functions cannot be distinguished by returning values. 3. What is the difference between overloading (overload) and overriding (override). 4. What is redefinition (redefining). 5. Please write the prefix (prefix) and suffix (postfix) overload function of the + + op

(avoid loss of modification) 2) Level two block protocol: increase transaction T on the basis of the first level blocking protocol must read the data R before reading the lock, you can release the read lock after reading (to avoid loss of modification and read dirty data) 3) Level three block protocol: increase the transaction T on the basis of the first level blocking protocol the lock must be read before the data R is read, until the end of the transaction is released (avoid loss of modificat