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The ftp_exec() function is used to execute a command on the FTP server.Syntaxftp_exec(con, command)Parameterscon − The FTP connectioncommand − The command to execute.ReturnThe ftp_exec() function returns TRUE if the command was executed successfully, else FALSE.ExampleThe following is an example that executes a command on the FTP server −
The file extension is the suffix that is attached to the computer file and it denotes the format of the file. A program that demonstrates getting the file extension name is given as follows −Example Live Demoimport java.io.File; public class Demo { private static String fileExtension(File file) { String name = file.getName(); if(name.lastIndexOf(".") != -1 && name.lastIndexOf(".") != 0) return name.substring(name.lastIndexOf(".") + 1); else return ""; } public static void main(String[] args) { File file = new File("demo1.txt"); ... Read More
To display at most 10 characters in a string, work with the Formatter class.Import the following package for Formatter class in Java −import java.util.Formatter;Create a new Formatter object −Formatter f = new Formatter();Let us now display at most 10 characters in a string −f = new Formatter(); System.out.println("Displaying at most 10 characters: "+f.format("%.10s", "This is demo text!"));The following is an example −Example Live Demoimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); String str = "This is demo ... Read More
Use the remove() method to remove specified elements from TreeSet.At first, create a TreeSet and add elements −TreeSet set = new TreeSet(); set.add("34"); set.add("12"); set.add("67"); set.add("54"); set.add("76"); set.add("49");Now, remove the specified element i.e. 34 here −set.remove("34")The following is an example to remove specified element from TreeSet −Example Live Demoimport java.util.*; public class Demo { public static void main(String args[]){ TreeSet set = new TreeSet(); set.add("34"); set.add("12"); set.add("67"); set.add("54"); ... Read More
The concat operator can be used in ORACLE. MySQL use concat() function to perform concatenation.To understand the concat() function, let us create a table. The query to create a table is as follows −mysql> create table ConcatenationDemo −> ( −> Id int, −> Name varchar(100) −> ); Query OK, 0 rows affected (0.86 sec)Insert some records in the table using insert command. The query is as follows −mysql> insert into ConcatenationDemo values(100, 'John'); Query OK, 1 row affected (0.19 sec) mysql> insert into ConcatenationDemo values(101, 'Sam'); Query ... Read More
Before getting into example we should know what is tab host in android. Tab host holds set of tabs. Each tab contains either fragment or activity as per project specification. The user can scroll tabs from left to right or right to left.This example demonstrates how to use tab host in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ... Read More
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” −
RuntimeMXBean in the management interface for the runtime system of the Java virtual machine.RuntimeMXBean runtimeMX = ManagementFactory.getRuntimeMXBean();To get the system properties, use the getSystemProperties() method −System.out.println("System properties from RuntimeMXBean: "+runtimeMX.getSystemProperties());The following is an example −Example Live Demoimport java.lang.management.ManagementFactory; import java.lang.management.RuntimeMXBean; import java.util.Date; public class Demo { public static void main(String args[]) throws Exception { RuntimeMXBean runtimeMX = ManagementFactory.getRuntimeMXBean(); System.out.println("System properties from RuntimeMXBean: "+runtimeMX.getSystemProperties()); } }OutputSystem properties from RuntimeMXBean: {awt.toolkit=sun.awt.X11.XToolkit, file.encoding.pkg=sun.io, java.specification.version=1.8, sun.cpu.isalist=, sun.jnu.encoding=UTF-8, java.class.path=/home/cg/root/GNUstep/Library/Libraries/Java:/usr/GNUstep/Local/Library/Libraries/Java:/usr/G NUstep/System/Library/Libraries/Java::/usr/share/java/mysql-connector- java.jar:.:/var/www/html/lib:/var/www/html/lib/dom4j-1.6.jar:/var/www/html/lib/guava- 18.0.jar:/var/www/html/lib/jackson-all.jar:/var/www/html/lib/jaxen- 1.1.4.jar:/var/www/html/lib/jcommon.jar:/var/www/html/lib/jdom2- 2.0.5.jar:/var/www/html/lib/jfreechart.jar:/var/www/html/lib/junit-4.12.jar:/var/www/html/lib/spymemcached- 2.10.3.jar:/var/www/html/lib/stax-1.2.0.jar:/var/www/html/lib/xstream-1.4.7.jar:/var/www/html/lib/gson- 2.3.1.jar:/var/www/html/lib/hamcrest-core-1.3.jar, java.vm.vendor=Oracle Corporation, ... Read More
To implement a keyword search in MySQL, you can use LIKE operator. The syntax is as follows −SELECT *FROM yourTableName where yourColumnName Like ‘%anyKeywordName%’ or yourColumnName Like ‘%anyKeywordName%’;To understand it further, let us first create a table. The following is the query to create a table −mysql> create table KeywordSearchDemo −> ( −> StudentId int −> , −> StudentName varchar(100) −> ); Query OK, 0 rows affected (0.86 sec)Insert some records in the table using INSERT command. The query to insert record is as follows −mysql> insert into KeywordSearchDemo values(100, 'Adam John'); Query OK, 1 ... Read More
The ftp_fget() function is used to upload from an open file and saves it to a file on the FTP server.Syntaxftp_fput(con,remote_file,open_file,mode,startpos);Parameterscon − The FTP connectionremote_file − The file path to upload toopen_file − The open local filemode − The transfer modestartpos − The position to begin downloading fromReturnThe 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” −