ibatis interview questions and answers

1 Some important points about polymorphism and object-orientedAs an object-oriented programmer, this problem is to be clear, on-line, textbooks are standard answers, the key is to understand the connotation oh.2 about virtual function tables and Rtti This inside C + + Object model speaks fairly clearlyThe first item of the virtual function table is about RTTI, and Rtti is the run time Type identification.The following is the virtual function pointer i

between $* and [email protected] $*– output all parameters passed to the script as a string [Email protected]– to list all parameters passed to the script in $IFS delimiter 63) How do I define an array in bash?array= ("Hi" "My" "Name" "is")64) How do I print the first element of an array?Echo ${array[0]}65) How do I print all the elements of an array?Echo ${array[@]}66) How do I output all the array indexes?Echo ${!array[@]}67) How do I move an element with an index of 2 in th

Ordinary PHP Programmer pen TestTags: programmer PHP interview 2009-02-06 15:191. Use PHP to print out the day before, the print format is May 10, 2007 22:21:212. PHP code is as follows:$a = "Hello";$b =amp; $a;Unset ($b);$b = "World";echo $a;What is the result?3. PHP code is as follows:$STR = "CD";$ $str = "Landog";$ $str. = "OK";Echo $CD;What is the result?4. Write a code with PHP, implementation does not use the 3rd variable, Exchange $a, $b value,

Hiring smart software developers is not easy.If you're not careful you might end up hiring a bunch of moronic Mandrills, like I did last year. and you don't want that. trust me. stand-up meetings are very hard to do in a tree. The key is to askChallenging questionsThat enable you to distinguish the smart software developers from the moronic Mandrills. And to help you with that, I decided to publish my private list100 interview

C ++ programmers apply for common interview questions in-depth analysis 2 -- Linux general technology-Linux technology and application information, the following is to read details. 3. Internal issues Question 1: Give the if statement for comparing the BOOL, int, float, pointer variable and "zero value" respectively (assuming the variable name is var) Answer: Boolean variable: if (! Var) Int type variab

think carefully? It is self-righteous and wrong to educate new people in such an irresponsible attitude! If I did not think about it carefully, I wrote it down. Isn't it ......After chatting, I went on to talk about this question. Although this cainiao knows that the algorithm above is incorrect, I cannot think of any good improvement methods. Fortunately, I went to another forum on Baidu, answers provided in this forum are as follows: Int CNT = 0; /

; console.log(‘进入‘); } console.log(a);/script>Answers to pre-analytic surface questions Question 1th: function Question 2nd: number 3rd question: 100 123 4th question: 100 Function Body Question 5th: function Body function body 6th question: 1 Because the function x is a function parameter, it can be understood as a local variable inside the function, outside the fu

C language interview questions that appear at the same time between Intel and Microsoft # Pragma pack (8) Struct S1 {Short;Long B;}; Struct S2 {Char C;S1 D;Long long E;}; # Pragma pack () Question1. sizeof (S2) =?2. How many bytes are left behind a in S1 of S2 and then B? 　　If you know the answer, please write it in the discussion. Below are some answers from so

C/C ++ written examination, Interview Questions Summary1. Find the return value of the following function (Microsoft) Int func (X){Int countx = 0;While (X){Countx ++;X = x (x-1 );}Return countx;} Assume x = 9999. Answer: 8 Train of Thought: Convert X to a binary system and check the number of contained 1. 2. What is "reference "? What should I pay attention to when declaring and using "reference? A: A refe

When interviewing the SQL Server database developer, I used a set of standard benchmark technical questions. The following problems are the problems that I think can really help eliminate unqualified candidates. They are arranged in the order of ease to difficulty. When you ask questions about the primary key and foreign key, the following questions are very diff

Source of http://fayaa.com/tiku/view/2/ It is said that it names such as MS/Google have interview questions: There is a group of numbers, ranging from 1 to n, which reduces the number and the order is also disrupted. They are placed in an n-1 array. Please find the missing number. It is better to have a program, and the best algorithm is faster. Btw1: there are many methods. It is said that there are m

Copyright. For more information, see the source. Thank you!Http://blog.csdn.net/walkinginthewind/article/details/7393134 The linked list is the most basic data structure. Interviewers often use the linked list to evaluate the basic abilities of the interviewee. In addition, the linked list-related operations are relatively simple and suitable for investigating the ability to write code. Linked List operations cannot be separated from pointers, which can easily lead to errors. Considering multipl

. Blocking/non-blocking differences, event loop Select/poll/epoll, how common network library Read/write will be implemented (refer to Muduo). The interviewer will ask if the client needs to bind;tcp/udp the nuances of protocol programming ...5. Tool-related. vim/makefile/gdb/g++ ...6. C + + related. It is unavoidable to ask virtual functions; Common STL implementations and operations; What is extern c doing?7. Script-related. Shell/perl/python at least one door, OPS/deployment is required.The a

The following questions are my interview questions collected from the internet. I wrote my own answers and asked you to correct any mistakes. 1. What are the differences between property and attribute in C #? What are their respective uses? What are the advantages of this mechanism?Property usageGet/set method. It is m

]; Array[i] = t; } return array;}The above code contains the classic shuffle algorithm fisher-yates shuffle algorithm, namely the shuffle function. Please refer to my other blog for details.Operation Result:From the results, this method is also feasible.Fine think or there is a problem, for a larger array, no matter how efficient your shuffle algorithm (even if the above fisher-yates algorithm time complexity is O (n)), to random the entire array is still very large engineering it.S

The answers to common written or interview questions compiled by one student are for reference only and do not represent my opinion. 1. It is known that the prototype of the strcpy function is:Char * strcpy (char * strdest, const char * strsrc );Here, strdest is the destination string and strsrc is the source string. Do not call the string library function of

This section also contains data structures, algorithms, and an array of interview questionsThe difference between List, Set, Map, and Queue (answer)List is an ordered set that allows elements to be duplicated. Some of its implementations can provide constant access time based on subscript values, but this is not guaranteed by the List interface. Set is an unordered collection.The poll () method and the Remove () method differ?Both poll () and remove (

(The question comes fromV_july_vSorting, Microsoft and other data structures + algorithm interview 100 questions, July blogHttp://blog.csdn.net/v_JULY_v) Question: enter a binary search tree to convert the tree to its image,That is, in the converted Binary Search Tree, the left subtree has more nodes than the right subtree.UseRecursionAndLoopTwo methods are used to convert the image of the tree.For example

Echo is a language structure and has no return value. The print function is basically the same as echo. The difference is that print is a function and has a return value. print_r is a recursive print, which is used to output the PHP interview questions and answer 1 of the array object. 1. use PHP to print the previous day in the format of 22:21:21 // Echo date ('Y-m-d H: I: S', time ()-60*60*24Echo date ("

Sian O M engineer interview questions 1. What are the functions of the following Linux commands? Init 0 Chkconfig -- level 3 sendmail on Tar-czvf test.tar.gz ./ Chown-R www: www/usr/local/apache/htdocs/ Ln-s/data2/log/var/log/sina_log/ [-D/data1/logs] mv/data1/logs/data1/logs. old Rsync 192.168.0.200: software.tar.gz. Umount/data0 Rpm-ivh sina. rpm Rpm-qf/bin/ls 2. What software does a Linux Server need t