You can directly pass arguments to a program. For this purpose, you have to declare these arguments in the parameter list of main(): int main (int argc, char ** argv){}

C++ provides default access specifiers when you don’t use spell them out explicitly, as in the following examples: struct Employee{ /*..*/};class Manager : Employee //implicit public inheritance{ int rank; //implicitly

The built-in + operator is a binary operator that takes two arguments of the same type and returns the sum of its arguments without changing their values. In addition, +

Although the copy constructor and assignment operator perform similar operations, they are used in different contexts.The copy constructor is invoked when you initialize an object with another object: string first

The macro offsetof (defined in or in C) calculates the offset in bytes of a struct’s data member. The following example uses this macro to calculate the offset of two

The Boost web site offers various free C++ libraries and classes. These supplementary libraries and classes include a random number generator, four smart pointer classes, file system tools, timer classes,

Consider the following code sample: class Foo{/*..*/};std::vector v;// Related Posts Build Composable UI Components for Large Scale ApplicationsOverview of the New Features in .NET Framework 4.6DataWalk: Data Analysis Beyond Traditional

Question: Can I design custom components using scriptlets? Answer: Yep, that’s what they’re for, actually. Scriptlets encompass a number of technologies. With Microsoft Internet Explorer 4.0, for example, scriptlets were

Question: I am working on a program that uses XML for data archival. This data archive creates XML files in the multi-megabyte range (5 MB – 500 MB and greater).

Question: Is there a way to layer page elements through Cascading Style Sheets (CSS) over an embedded element such as a Shockwave movie? My present page has a sliding graphic

Question: I am attempting to use createTempFile and it works fine with JDK 1.2.2,but IE 4 and 5, and Netscape give me the following error: java.lang.NoSuchMethodError: java/io/File: methodcreateTempFile(Ljava/lang/String;Ljava/lang/String;)Ljava/io/File; notfound. Why

Question: How do I use the ProgressMonitor class? Answer: The ProgressMonitor class is a convenience class that saves you fromthe hassle of creating your own dialog with a JProgressBar. It

Question: I am doing a project where VB6 talks to Access 2000 thru ADO. I am using a login dialog to obtain the username, password & DSN (ODBC Data source

Question: Is it necessary to check return value after a “new” statement?Does it return null when it cannot allocate any more memory? Answer: You do not have to check the

Question: I want to extract data from a specific column in a grid control. When the user selects a record in the grid, I want to take the data from

The proliferation of handheld devices and embedded systems revives old programming and design considerations that existed in the olden days, when every byte of memory and every CPU cycle counted.

Most applications contain a loop that contains a parameterized query, which is executed many times depending on some logic. This requires a network round trip between the computer running the

When SQL Server completes the execution of a T-SQL statement, @@ERROR is set to the value 0 if the statement is executed successfully. Otherwise SQL Server returns an error number.

If you already know that the execution of your SQL statement will return a single row of data, then you should always prefer stored procedures with output parameters in place

When displaying the contents of a database memo field in a Web page, you may find that you are losing the formatting of the original text. That’s because HTML is

Java makes working with threads relatively straight forward. However, there are situations, or anomalies that can arise due to improper design of a thread-based code. The following provides you with

SQL Server 7.0 uses deferred name resolution in stored procedures, triggers, and statement batches. It allows the creation of stored procedures that reference objects that do not yet exist. During

Java Archive (JAR) files are compressed files into which you can store many files. If you place the many classes that your application, or applet needin a JAR file, you

The Active Server Pages HTMLEncode function is great for handling strings that come from a database, especially if the string includes foreign characters. However, you can get into trouble if

If you are trying to count the number of records within a recordset but you’re getting back the value -1, then chances are you’re using the wrong cursor type. In

Question: If three records have been written to a text file(each record having 3 int fields) and each integer field is seperated by a comma, how do you retrieve only

Question: Let’s say I have a class foo, with a lot of functions that take no arguments and return SomeType: SomeType foo::bar()SomeType foo::quux()SomeType foo::quuux()SomeType foo::quuuux() Now I have a pointer