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the main position. So how to review good technical points is necessary to find a good job (but also a large part of the luck component in it). For fresh students, because of the limited skills in school, so in the beginning of the interview after several companies, the feeling of shock is very normal, at this time must not lose heart, from each interview to sum up their own shortcomings, not to make up for
Last week wrote an article, database aspects of interview skills, how to display their ability from the table, courtesy of the administrator to lift, put in the home, but also thanks to you love, two days in the harvest of nearly 770 clicks, also once entered the 48-hour hot list.In order to thank the Administrator and everyone for their support, and then based on my interview experience, an original articl
rest) {if (Rest 0 | | Total 0) {// If rest or total is less than 0, throw an exception, you can write an exception handling class to inherit runtimeexception throw ...} //If rest is 0, indicating that this is the last red envelope, return the balance directly if (rest = 0) { Span class= "Hljs-keyword" >return total; } //take the balance average (to add the number of this time) long per = total/(rest + 1); //the random number of 1 to the average of the balance (mathematical expectation?) ) long
The list is a kind of problem which often appears in the interview, this article uses the Java to realize the common Link list related topic in the interview. This article mainly refers to the integration rewrite the "easy to handle the interview in the list of the topic" and "Algorithm encyclopedia (1) Single list" tw
What is AOP in the Java programmer interview test book? A programmer interview test book AOP (Aspect-Oriented Programming) is a supplement to object-oriented development, it allows developers to dynamically modify the model without changing the original model to meet new requirements. For example, you can dynamically add log, security, or exception handling funct
Linked list is often in the interview, this article refers to some other articles, together with the small series of their own summary, the basic algorithm has been tested and optimized.Algorithm Daquan (1) There are also some list problems in the single linked list, which will be sorted out in the future.* REFS:* http://blog.csdn.net/fightforyourdream/article/details/16353519* http://blog.csdn.net/luckyxiaoqiang/article/details/7393134 easy to handle
next () method of the iterator throws a Concurrentmodificationexception exception.Concurrent containers support concurrent traversal and concurrent updates.The main classes are Concurrenthashmap, copyonwritearraylist and Copyonwritearrayset, read this article to learn how to avoid concurrentmodificationexception.8. What is the Executors class?Executors provides some tool methods for the Executor,executorservice,scheduledexecutorservice,threadfactory and callable classes.Executors can be used to
Some time ago participated in the Zhuhai far-light Java Development Engineer interview, I first interview, no experience plus preparation is not sufficient, fiasco. Here's a summary: lack of self-confidence This is probably one of the most important reasons. Because of inadequate preparation and lack of experience in the inte
execution.Surround notification is one of the most common types of notifications. Most interception-based AOP frameworks, such as Nanning and JBOSS4, provide only surround notifications.The concept of pointcut (pointcut) and connection point matching is the key to AOP, which makes AOP different from other old technologies that simply provide interception functionality.The pointcut enables the location notification (advice) to be independent of the OO hierarchy. For example, a around notificatio
file names or directories under the current path for more informationpwd--Show current path locationcd--Switching directoriesPing IP address--test network connection is unblockedVim file name--Modify filei--into edit stateesc--exiting a previous state: wq--Save Exit: Q!—— indicates forced exit is not recommended for useCP Original file name copy file name--copy fileMV A.txt b.txt--renamed A.txt to B.txtMV A.txt aa/--move a.txt to the AA folderclear--Clear Screen CommandService iptables stop--sh
Interview Diary--Alibaba Java interview Ali's interview is the most stressful one, but also the most test of technology.Did not expect Ali's interview notice is now received, can be said to be belated love it.Interview The remote interv
:orcl", id,pwd);How to establish a connection to the Sybase database:Connectioncon=drivermanager.getconnection ("jdbc:sybase:tds:mydbcomputernameorip:2638", ID,PWD);How to establish a connection to a SQL Server database:Connectioncon=drivermanager.getconnection ("Jdbc:microsoft:sqlserver://mydbcomputernameorip:1433;databasename= Master ", id,pwd);How to establish a connection to the DB1 database:Connectioncon=drivermanager.getconnection ("Jdbc:db2://mydbcomputernameorip/mydbname", ID,PWD);(3) Cr
structure if the index structure is not specified. To delete an index syntax:DROP INDEX Table_name.index_name[,table_name.index_name]Description:table_name: The name of the table where the index resides. Index_name: The name of the index to remove. Use system stored procedure:sp_helpindex to view the index information for the specified table. The execution code is as follows:Exec sp_helpindex Book1;15, in the project may encounter this situation, the company will be out of the report, but the b
interview to do the test session, never cheat. 6. Palm Grip of top tech pointsIn fact, this is an additional item, if the above points have passed the interview assessment, then this point will become your absolute highlight. First of all, you should first understand the current hot technology, and then through analysis of the position you apply, to see what might be involved in the hot technology, and
, because the new learning is not very familiar, according to their own situation to choose)3. Browser cross-domain issues (foreground system calls can use JSONP to implement cross-domain browser issues, last year the trainees spent a few hours to learn this, only with this technology into the job 8K. )4.webservice (This technology already has an alternative technology, if not, can not take the time to review)5.Linux (the water is too deep, just talk about yourself in the project in the deployme
= platform + PayrollWhen we choose employing units must be measured from these two aspects, the amount of salary is important, but the platform for our own development is also very important. 4. Keep a good attitude during the interviewour interview process will meet a variety of different styles of interviewers, I from the first interview to the last interview
The scope of this article is not limited to the Java backend or Java Web, but some of them are examples of this, in other aspects, we can extrapolate, should also be able to get some inspiration.In the interview, we will find that some candidates are technically good, for example, in the Java Web backend, the Spring MV
Java's current heat has declined, but there are still a lot of people who learn java. Java's post is also a lot of infiltration. So, those classic Java knowledge points, you can see the problem can say 123? Come and have a look.The difference between 1.JDK and JRE What is the difference between 2.final, finally, and finalize?3. The difference between threads and processesHow does the HashMap in 4.
consumption, etc. (Uppercase M and uppercase P)2. Get and Post methods for HTTP.3, introduce the epoll you know.4, the database SQL understanding degree.5, problems encountered in the project, how to solve their own and so on.6, handwriting a full array.7, B-Tree and B-tree.8, introduce the hash, how to resolve the conflict.9, the communication between processes, the advantages and disadvantages of shared memory mode.Three, Baidu three side: # # #1, say you usually look at some of the technical
current variable in the register (working memory) is indeterminate and needs to be read from main memory; Synchronized is the lock of the current variable, and other threads are blocked only if the variable is accessible to the front-thread.(3) volatile does not cause thread blocking, and synchronized can cause thread blocking.(4)volatile can only synchronize the value of a variable between the thread memory and the main memory, while synchronized synchronizes the values of all variables betwee
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