Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
Articles by karthikeya Boyini
Page 132 of 143
What are JSP comments?
JSP comment marks text or statements that the JSP container should ignore. A JSP comment is useful when you want to hide or "comment out", a part of your JSP page.Following is the syntax of the JSP comments −Following example shows the JSP Comments − A Comment Test A Test of Comments The above code will generate the following result −A Test of Comments
Read MoreHow many types of directive tags JSP supports?
A JSP directive affects the overall structure of the servlet class. It usually has the following form −Directives can have a number of attributes which you can list down as key-value pairs and separated by commas.The blanks between the @ symbol and the directive name, and between the last attribute and the closing %>, are optional.There are three types of directive tag −S.No.Directive & Description1Defines page-dependent attributes, such as scripting language, error page, and buffering requirements.2Includes a file during the translation phase.3Declares a tag library, containing custom actions, used in the page
Read MoreHow to set locate to identify required resource bundle in JSP?
The tag is used to store the given locale in the locale configuration variable.AttributeThe tag has the following attributes −AttributeDescriptionRequiredDefaultValueSpecifies a two-part code that represents the ISO-639 language code and an ISO-3166 country code.Yesen_USvariantBrowser-specific variantNoNonescopeScope of the locale configuration variableNoPageExampleResource bundles contain locale-specific objects. Resource bundles contain key/value pairs. When your program needs a locale-specific resource, you keep all the keys common to all the locale but you can have translated values specific to locale. Resource bundles helps in providing content specific to locale.A Java resource bundle file contains a series of key-to-string mappings. The method that we ...
Read MoreHow to restrict UITextField to take only numbers in Swift?
In iOS apps sometimes we need to restrict our text field to take only numbers as an input, this can be done in several ways, let’s see some of them.Method 1: Changing the Text Field Type from storyboard.Select the text field that you want to restrict to numeric input.Go to its attribute inspector.Select the keyboard type and choose number pad from there.Method 2: Programmatically limiting inputs to number.Select the text fieldCreate its outlet in the view controller.Conform the view controller to UITextFieldDelegateSet the text field’s delegateAdd the following functionfunc textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool ...
Read MoreCounting number of positive and negative votes in MySQL?
To count number of positive and negative votes, you can use CASE statement along with aggregate function SUM().Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Vote int ); Query OK, 0 rows affected (1.70 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Vote) values(-10); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable(Vote) values(100); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(Vote) values(45); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(Vote) values(-6); Query OK, 1 row ...
Read Moreftp_close() function in PHP
The ftp_close() function closes an FTP connection.Syntaxftp_close(con);Parameterscon − The connection to close.ReturnThe ftp_close() function returns TRUE on success or FALSE on failureExampleThe following is an example that login to a connection, works in it to change the directory and then connection is closed −
Read Moreftp_fget() function in PHP
The ftp_fget() function is used to downloads file from the FTP server and save it into an open local fileSyntaxftp_fget(con,open_file,server_file,mode,startpos);Parameterscon − The FTP connectionopen_file − A file where the data is storedserver_file − The server file to downloadmode − The transfer modestartpos − The position to begin downloading from. Added in PHP 4.3.0.ReturnThe ftp_fget() function returns TRUE on success and FALSE on failure.ExampleThe following is an example wherein we will download server file “demo.txt” and save it to open local file “new.txt” −
Read Moreftp_get_option() function in PHP
The ftp_get_option() function returns runtime options of the FTP connection.Syntaxftp_get_option(con,option);Parameterscon − The FTP connection.option − The runtime option to return.The following are the possible values −FTP_TIMEOUT_SEC - The timeout used for network operationsFTP_AUTOSEEK - Returns TRUE if this option is on, FALSE otherwiseReturnThe ftp_get_option() function returns the value on success, or FALSE if the given option is not supported.ExampleThe following is an example −
Read Moreftp_nb_continue() function in PHP
The ftp_nb_continue() function continues to receive or send a file to the FTP server. That means the download continues.Syntaxftp_nb_continue(con);Parameterscon − The FTP connection.ReturnThe ftp_nb_continue() function returns any of the following values −FTP_FAILED − send/receive failedFTP_FINISHED − send/receive completedFTP_MOREDATA − send/receive in progressExampleThe following is an example. Here., “new.txt” is a local file, whereas server file is “server.txt” −
Read Moreftp_nb_fput() function in PHP
The ftp_nb_fput() function uploads from an open file and saves it to a file on the FTP server.Syntaxftp_nb_fput(con, remote_file, open_file, transfer_mode, beg_pos);Parameterscon − The FTP connectionremote_file − The file to upload toopen_file − The pointer to the open filetransfer_mode − This is the transfer mode. The following are the possible values:- FTP_ASCII, or- FTP_BINARYbeg_pos − The position to begin the downloadingReturnThe ftp_nb_fput() function returns any of the following values −FTP_FAILED − send/receive failedFTP_FINISHED − send/receive completedFTP_MOREDATA − send/receive in progressExampleThe following is an example −
Read More