An expression may consist of one or more subexpressions. You can group several expressions in one statement and separate them with commas. For example: if(++x, –y, cin.good()) // three expressions

A recent subscriber of one of the C++ newsgroups posted the following question:Why did the C++ standardization committee created a const_iterator instead of a const iterator? Or, at least, why

In certain contexts, you have to treat a vector as an array of its elements. For example, suppose you have a function that takes int * as its argument. How

The associative containers std::map, std::multimap, std::set, and std::multiset have the following three overloaded forms of the member function erase(): class map // simplified for brevity{public://..other members void erase(iterator position); //

Question: Every class in Java is supposed to extend the Object class by default. In case a user class extends some other class (e.g., if myclassextends yourclass), then is it

Question: After I have already declared an object, how can I call its constructor again to re-initialize its member variables? Answer: You can’t do that. C++ guarantees that for each

Question: What is the purpose of static methods in Java? Answer: Static methods can be invoked without an instance of an object. They provide the ability to execute methods in

Question: Can I specify the column I want to select from as an argument to the procedure? Something like: create procedure show_product(language char(2), ID integer) returning char(255);define p_prod_name CHAR (255);select

Question: I cannot initialize the program after I have installed it. When I run “oninit”, it seems to work, but then when I run “onstat” it tells me that the

Question: In Informix SE, I can use ISQL to generate a default form from a table and then query, update, or delete data within the form? How do I do

Question: Is there a way to perform a selective restore? I need to restore just one mailbox or public folder. I’m using the NT backup/restore utility. Answer: I’m afraid not.

Question: What are some of the ways that databases can be secured so that they can’t be hacked into, etc.? Answer: The first level of security is always the OS

Question: I am using Informix 7.24 and my raw partitions are getting quite large. Is there a way to tell the size of a database? I could then decide which

Question: How can ‘Ontape’ functions be used to back up Informix/Lawson DB to disk? Is dbspace required or can a large area in a directory (e.g., /gsc/bigspace) be used? Answer:

Question: Which is faster, LOCATE (without parameters) or GO TOP? How fast is the one from the other? Why is one faster than the other? Answer: They are usually equal

‘ convert a reversed full name back to the “FirstName LastName” format” for example, ConvertReverseFullName(“Smith, John A.”) ==> “John A. Smith”Function ConvertReverseFullName(ByVal ReverseFullName As String) As String Dim i As

‘ convert a string to camel case’ for example: CamelCase(“new file name”) => “NewFileName”‘Function CamelCase(ByVal Text As String) As String Dim i As Long ‘ convert all non-alphanumeric chars to

‘ Modify a phone-number to the format “XXX-XXXX” or “(XXX) XXX-XXXX”.Function FormatPhoneNumber(ByVal text As String) As String Dim i As Long ‘ ignore empty strings If Len(text) = 0 Then

‘ reverse a full name” for example: ReverseFullName(“John A. Smith”) ==> “Smith, John A.”Function ReverseFullName(ByVal FullName As String) As String Dim i As Long ‘ search for the last space

‘ Takes a first and last name and converts it to the format LastName, FirstNameFunction FormatFullName(ByVal FirstName As String, ByVal LastName As String) As _ String FirstName = Trim$(FirstName) LastName

‘ change a sentence in CamelCase to a sentence with spaces’ for example ConvertCamelCase(“FileExchange”) => “File Exchange”Public Function ConvertCamelCase(ByVal Value As String) As String Dim i As Long For i

‘ Format a credit card numberFunction FormatCreditCard(ByVal text As String) As String Dim i As Long ‘ ignore empty strings If Len(text) = 0 Then Exit Function ‘ get rid

Question: I’ve done a lot of programming in Java, and am relatively new to C++. One of the things that annoys me (just personally), is using a prefix such as

Question: In my class declaration I have a member: CSomeUsefulClass* m_one; In my implementation file, there is a function: DoMyThing(){CSomeUsefulClass* m_two;m_two = new CSomeUsefulClass(param1, param2);//blah…m_one = m_two;//do my thing…} then

We can speed up the data transfer between servlet and applet in a Web application by compressing the data transferred between them. The example below demonstrates how this is done:

Use the fillInStackTrace() method to rethrow a Throwable type of exceptional condition in your code. This is useful if you want to rethrow a exception that occurred while using a

Programmers who use dynamic_cast sometime discover that their applications suffer from mysterious crashes although seemingly, they are bug free. In most cases, the reason is that they forgot to turn

The sequence && is parsed as the logical AND operator. According to the Maximal Munch parsing principle, it’s never construed as two & (address of) operators: void func (char **