junior programmer interview questions

Php programmer interview questions (classic summary) Function GBsubstr ($ string, $ start, $ length ){ If (strlen ($ string)> $ length ){ $ Str = null; $ Len = $ start + $ length; For ($ I = $ start; $ I If (ord (substr ($ string, $ I, 1)> 0xa0 ){ $ Str. = substr ($ string, $ I, 2 ); $ I ++; } Els

//generate an instance when used, improve the efficiency! if(instance==NULL) instance=NewSingleton ();returninstance;}} Other forms: Defines a class whose constructors are private, and all methods are static. The first form is generally considered to be more secure .33rd Hashtable and HashMapHashtable inherits from the dictionary class, and HashMap is an implementation of the map interface introduced by Java1.2 HashMap allow NULL as a entry key or value, And Hashtable not allow there is, HashMap

People who read "C ++ Object Model" often mistakenly think that the compiler is filled with the length of the computer, as shown below: Class{Double;Char B;}; Sizeof (A) =? People who do not know how to fill in will think it is 9, and those who read the C ++ Object Model (like me) will often think it is 12 《ProgramA similar question in the employee interview book started to think that the answer was wrong .. I did not know after a try today

". Tneduts a Ma I", and then flip the order of the characters in each word to get "students." A AM I "is the output that meets the requirements.Reference code:voidReverse (Char*pbegin,Char*pEnd) { if(Pbegin = = NULL | | pEnd = =NULL)return; while(Pbegin pEnd) { Chartemp = *Pbegin; *pbegin = *pEnd; *pend =temp; Pbegin+ +, PEnd--; }}/////////////////////////////////////////////////////////////////////////Reverse the word order in a sentence, but maintain the character//order insi

The following content is the original Java surface of the online question set and the answer after a comprehensive revision of the responsible questions and answers, the original topic has a lot of repetitive topics and worthless topics, there are many reference answers is also wrong, modified Java surface Test set reference the latest version of the JDK, removed the EJB 2.x and other useless content, supplemented by ...Article longer please click to

Php programmer interview questions (yahoo) $ Num = 10; Function multiply (){ $ Num = $ num * 10; } Multiply (); Echo $ num; 4. what is the difference between referenced variables and common variables? How to pass a value through reference? Under what circumstances will this happen?5. which functions can be u

=str; //The first char in the string maybe ' + ' or '-' BOOLminus =false; if(*digit = ='+') Digit++; Else if(*digit = ='-') {digit++; Minus=true; } //The remaining chars in the string while(*digit! =' /') { if(*digit >='0' *digit '9') {num= num *Ten+ (*digit-'0'); //Overflow if(Num > std::numeric_limitsint>:: Max ()) {num=0; Break; } Digit++; } //if the char is not a digit, invalid input

) (int) 1 p0001 2007-2-8 8960 2 p0002 2007-2-8 5812 3 p0003 2007-2-8 8753 4 p0004 2007-2-8 8753 5 p0005 2007-2-8 9846 6 p0003 2007-2-9 4568 7 p0002 2007-2-9 2456 8 P0005 2007-2-9 9854Question 1, (5 points) write a newspaper with an SQL statement that averages more than 5200 sales by newspaper type?For:Question 2, (5 points) Use the SQL statement to write out the top three newspapers for the February 8, 2007 sale. If the third place has n, it should be queried.Fo

As a Java programmer who is often asked in an interview, let me summarize some of the questions that I often don't ask. The difference between 1.HashMap and Hashtable Often asked. Both are classes of the map interface, which enable you to map a unique key to a specific value. HashMap class is not sorted and can have a null key and multiple nul

PHP programmer interview questions (classic summary, dominated by mysql) Mysql_query ("BEGIN "); Mysql_query ("insert into mermerinfo (name) VALUES ('$ name1 ')"; Mysql_query ("SELECT * FROM 'orderinfo' where customerid =". $ id "); Mysql_query ("COMMIT "); 5) locking the table and optimizing transaction processing: a

Php programmer interview questions /** * Traverse the directory and save the result to an array. Php4 and above are supported. Php5 and later use the scandir () function to replace the while loop. * @ Param string $ dir * @ Return array */ My_scandir ($ dir) { $ Files = array (); If ($ handle = ope

Php programmer interview questions and answers Class my_class { Function my_funct ($ my_param) { User_error ("please define me", E_ERROR ); } Function B () { Return 10; } } ?> A. Multiple inheritance B. Interface C. abstract method D. private method E. function overload)7. suppo

anything. 3) after submitting your resume, you will be familiar with the related business and related technologies of the other company based on the descriptions of the positions you want to interview, and will focus on reviewing the "yes" on your resume. 4) What is the interviewer's psychology ?... Mostly dark .. haha ..... in fact, I don't think there must be any technology even 50%... especially for junior