The following code demonstrates how to validate email using regular expression: import java.util.regex.*;class regexSample { public static void main(String args[]) { //Input the string for validation String email = “[email protected]”;
It’s important to use recursion carefully to avoid running into stack overflow. This sample code reverses a given integer number using recursion: #include “stdafx.h”int myreverse(int num){ static int nLocal =
Sometimes, you want to handle an event such as a button click on the client first, and then post the click event to the server only under certain conditions. Here’s
Default system tables and stored procedures are visible along with user-defined ones in MS SQL Enterprise Manager. This is fairly inconvenient when you’re trying to walk thorugh your own tables
Sometimes you need to resize an image according to the window’s size. You can do this by setting the image width and height as 100 percent inside the tag. IE
Consider a scenario where a dialog is launched from a panel which itself was launched by another panel. It’s very tedious to get the dialog disposed when the ESCAPE key
Assigning a data member with another member of the same class in the member intialization list results in this: class test{ public: test (int y) : j (y), i(j) {
Sometimes you need to remove a link from an anchor tag dynamically. You can do this with JavaScript.Take a look at this example: Devx To remove the link (i.e, the
A common mistake many developers make is using their MySQL database to validate a user name and password combination. Here’s a typical SQL query checking for the existence of a