common help desk interview questions

[Finishing]c#. NET common interview questions with Answer (ZT) A friend who is looking for a job may use it. I am not too understand resistance, last week a friend came to me to find a job he tidied up, so I only responsible for posts, the answer to the question to you. --------1. What does object-oriented thinking mainly include? 1 Inherit polymorphic Package//-

//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

ImportNew Note: This article is one of the Java interview series compiled by ImportNew. You can view all the Java interview series from here. The common Interview Questions introduced in this article are about the overloading method and overriding method. Q.What is the outpu

tables and indexes into smaller, easier-to-manage partitions.46. You have just compiled a PL/SQL package with error reporting, how do I display an error message?Answer: SHOW ERRORS47. How do I collect various status data for a table?Answer: ANALYZEThe ANALYZE command.48. How to start the session level traceAnswer: Dbms_session. Set_sql_traceALTER SESSION SET sql_trace = TRUE;The different points of the 2 tools, import and Sql*loaderAnswer: These two Oracle tools are used to import data into a d

10 seconds, Server 20 seconds16. What design patterns do you use in your usual development, and can you talk about the usage scenarios of these design patterns? In peacetime, there are more singleton patterns (used when only one object is instantiated in memory), adapter mode (typically the adapter of the ListView and GridView), builder mode (ALERTDIALOG.BUILDER), the observer pattern may be more subtle, In the Android source code baseadapater the implementation of the notifydatasetchanged (? ）

Follow Finddreams Blog: http://blog.csdn.net/finddreams/article/details/44301359In the previous article we have learned some basic questions about the Android written test, "Android development interview by--2." Common Android Basic pen questionsBut as an experienced developer, just know the basic problem is not enough, your resume said there are more than two ye

The PHP interview questions compiled in this article mainly come from two methods: one is the string and file operation example, and the other is the examples of several commonly used sorting algorithms. Let's take a look at them. The PHP interview questions compiled in this article mainly come from two methods: one is

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:

procedure and a trigger Triggers are very similar to stored procedures, and triggers are also sets of SQL statements, the only difference being that triggers cannot be invoked with an EXECUTE statement, but are automatically triggered (activated) when a user executes a Transact-SQL statement. A trigger is a stored procedure that executes when a data in a specified table is modified. Pass- through creates triggers to enforce referential integrity and consistency for logically related data in dif

[Algorithm Interview Questions] search for the nearest common ancestor node of the two nodes in the binary search tree Http://geeksforgeeks.org /? P = 1029 Given the value of any two nodes in a binary search tree, you need to write a C/C ++ program to find the closest common ancestor of the two nodes, you can assume th

Questions about function call variables var a =10; function aaa(){ alert(a); } function bbb(){ var20; //10 } bbb(); Variable declaration issues function aaa(){ var a=b=10; } aaa(); alert(a);//not defined alert(b);//10 Variable lookup is the nearest principle to find, Var defined variables, when the nearest is not found, will look for the outer layer: var10 funct

completed return Modelandview7, Handleradapter the controller execution results Modelandview returned to Dispatcherservlet8. Dispatcherservlet Pass Modelandview to Viewreslover view parser9, Viewreslover after parsing return to the specific view10. Dispatcherservlet the rendered view based on the view (populate the model data into the view).11. Dispatcherservlet Response UserFour, Spring MVC design AdvantagesFive, the main difference between SPRINGMVC and Struts2?The entrance to the ① Springmvc

client. The expression is defined between the two tags, 9. What does the implied object mean? What are the hidden objects?JSP implied objects are some Java objects in the page, and the JSP container allows these Java objects to be used by developers. Developers can use them directly without a clear statement. JSP implicit objects are also called predefined variables. The following lists the implied objects in the JSP page:ApplicationPageRequestResponseSessionexceptionOutConfigPageContext

Common Browser compatibility problems and solutions (interview questions) and compatibility interviews 1. browser compatibility problem 1: The default margin and padding labels of different browsers are different. Symptom: When you write a few labels without style control, the difference between the margin and padding is large. Frequency: 100% Solution: You can u

C ++ programmers apply for common interview questions in-depth analysis 3-Linux general technology-Linux technology and application information, the following is to read details. Question 5: Write a function to shift n loops of a char string to the right. For example, if "abcdefghi" is n = 2, it should be "hiabcdefgh" after the shift" The function header is as f