The border-collapse specifies whether the browser should control the appearance of the adjacent borders that touch each other or whether each cell should maintain its style.ExampleYou can try to run the following code to learn how to work with border-collapse property                   ... Read More

The -moz-opacity property of an image is used to set the opacity of an image. This property is used to create a transparent image in Mozilla. IE uses filter:alpha(opacity=x) to create transparent images.ExampleYou can try to run the following code to style an image and set opacity with CSS   ... Read More

In MySQL, we can simply specify the SELECT conditions all alone to get the self-computed output. Following example will demonstrate it −mysql> Select 1+1; +-----+ | 1+1 | +-----+ | 2   | +-----+     1 row in set (0.02 sec) mysql> Select 1; +---+ | 1 | +---+ | 1 | +---+ 1 row in set (0.00 sec)

UPDATE command along with WHERE clause can be used to change the value of an instance of a row. Basically, MySQL will change the value on the basis of the condition given in the query. Following example can demonstrate itSuppose we want to change the name from ‘Ram’ to ‘Mohit’ ... Read More

The SHOW DATABASES command is used to display the list of currently existing MySQL databases.mysql> Show Databases; +-----------------------------+ | Database                    | +-----------------------------+ | information_schema          | | gaurav                      | | mysql                       | | performance_schema          | | query                       | | query1                      | | sys                         | | tutorials                   | +-----------------------------+ 8 rows in set (0.02 sec)

The compilation of a C++ program consists of three steps −Preprocessing − In simple terms, a C Preprocessor is just a text substitution tool and it instructs the compiler to do required pre-processing before the actual compilation. It handles preprocessing directives like #include, #define, etc.Compilation − The compilation takes place ... Read More

Standard C++ doesn't provide a way to do this. You could use the system command to initialize the ls command as follows −Example#include int main () {    char command[50] = "ls -l";    system(command);    return 0; }OutputThis will give the output −-rwxrwxrwx 1 root root  9728 Feb 25 ... Read More

To make canvas fill the whole page, you need to be 100% in width and height of the page.* {    margin: 0;    padding: 0; } body, html {    height:100%; } #canvas {    position:absolute;    height:100%; width:100%; }

The elements and are useful for screenreaders as well and help visually impaired users in reading the content of your web page. These are beneficial for eBook readers as well.Let us see how to work with both the elements.           HTML Section Tag ... Read More

For double buffering on the canvas, create a 2nd canvas element and draw to it. After that draw the image to the first canvas using the drawImage() method, // canvas element var canvas1 = document.getElementById('canvas'); var context1 = canvas1.getContext('2d'); // buffer canvas var canvas2 = document.createElement('canvas'); canvas2.width = 250; ... Read More