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Articles by Syed Javed
11 articles
How to change font size in HTML?
To change the font size in HTML, use the style attribute. The style attribute specifies an inline style for an element. The attribute is used with the HTML tag, with the CSS property font-size. HTML5 do not support the tag, so the CSS style is used to add font size.Just keep in mind, the usage of style attribute overrides any style set globally. It will override any style set in the HTML tag or external style sheet.ExampleYou can try to run the following code to change the font size in an HTML page, Live Demo ...
Read MoreCURL context options in PHP
IntroductionCURL context options are available when the CURL extension was compiled using the --with-curlwrappers configure option. Given below is list of CURL wrapper context optionsMethodDescriptionmethodHTTP method supported by the remote server. Defaults to GET.headerAdditional headers to be sent during requestuser_agentValue to send with User-Agent: header.contentAdditional data to be sent after the headers. This option is not used for GET or HEAD requests.proxyURI specifying address of proxy server.max_redirectsThe max number of redirects to follow. Defaults to 20.curl_verify_ssl_hostVerify the host. Defaults to FALSE. available for both http and ftp protocol wrappers.curl_verify_ssl_peerRequire verification of SSL certificate used. Defaults to FALSE. available for both ...
Read More:active pseudo class in CSS
Pseudo class is to show different state of an element or a css selector. Active pseudo class is to show that the element is in active state.This pseudo class is mostly being associated with link and button or any other element which can be active.For example if it is associated with link that the link is active.Syntaxa:active { color:green;}Let's check the actual usage of :active pseudo class with different scenarios, as follows −Example Live Demo a:active { color:green;} Click here to learn ExplanationWhen you first time see the link ...
Read MoreHow to find the size of a variable without using sizeof in C#?
To get the size of a variable, sizeof is used.int x; x = sizeof(int);To get the size of a variable, without using the sizeof, try the following code −// without using sizeof byte[] dataBytes = BitConverter.GetBytes(x); int d = dataBytes.Length;Here is the complete code.Example Live Demousing System; class Demo { public static void Main() { int x; // using sizeof x = sizeof(int); Console.WriteLine(x); // without using sizeof byte[] dataBytes = BitConverter.GetBytes(x); int d = dataBytes.Length; Console.WriteLine(d); } }Output4 4
Read MoreHow can we set PRIMARY KEY on multiple columns of an existing MySQL table?
We can set PRIMARY KEY constraint on multiple columns of an existing table by using ADD keyword along with ALTER TABLE statement.ExampleSuppose we have a table ‘Room_allotment’ as follows −mysql> Create table Room_allotment(Id Int, Name Varchar(20), RoomNo Int); Query OK, 0 rows affected (0.20 sec) mysql> Describe Room_allotment; +--------+-------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +--------+-------------+------+-----+---------+-------+ | Id | int(11) | YES | | NULL | | | Name | varchar(20) | YES | | NULL ...
Read MoreFibonacci series program in Java without using recursion.
Following is the required program.ExampleLive Demopublic class Tester { public static void main(String args[]) { int n1 = 0, n2 = 1, n3, i, max = 5; System.out.print(n1 + " " + n2); for (i = 2; i < max; ++i) { n3 = n1 + n2; System.out.print(" " + n3); n1 = n2; n2 = n3; } } }Output0 1 1 2 3
Read MoreLocal variables in Java
Local variables are declared in methods, constructors, or blocks.Local variables are created when the method, constructor or block is entered and the variable will be destroyed once it exits the method, constructor, or block.Access modifiers cannot be used for local variables.Local variables are visible only within the declared method, constructor, or block.Local variables are implemented at stack level internally.There is no default value for local variables, so local variables should be declared and an initial value should be assigned before the first use.ExampleHere, age is a local variable. This is defined inside pupAge()method and its scope is limited to only ...
Read MoreHow is down-casting possible in Java?
Yes, a variable can be downcast to its lower range substitute by casting. It may lead to data loss although. See the example below −ExampleLive Demopublic class Tester { public static void main(String[] args) { int a = 300; byte b = (byte)a; System.out.println(b); } }OutputIt will print output as −44
Read MoreAdvantages of naming conventions in Java
Following the the best practices while declaring a variable. These best practices maintains code readability, understandability as project code size increases.Variables names should be short or long enough as per the scope. For example, loop counter variable, i is fine whereas employee as loop variable.Specific words should not be used like equals, compare, data.Use meaningful names which can explain the purpose of the variable. For example cnt Vs counter.Don't use _ to declare a variable name, Use camel casing. For example, employeeName is better than employee_name.Each organization has its own syntax specific standards. Follow those rules to maintain consistency and ...
Read MoreHow the Table statement works in ABAP
With table statement, you are able to get a single line of data corresponding to the dictionary structure you specify. The fields of structure can be used as select options and the structure can be passed as variable in the program.
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