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The method java.io.File.getAbsolutePath() is used to obtain the absolute path of a file in the form of a string. This method requires no parameters.A program that demonstrates this is given as follows −Example Live Demoimport java.io.File; public class Demo { public static void main(String[] args) { File file = new File("C:" + File.separator + "jdk11.0.2" + File.separator, "demo1.java"); System.out.println("The absolute path name is: " + file.getAbsolutePath()); } }The output of the above program is as follows −OutputThe absolute path name is:/C:/jdk11.0.2/demo1.javaNow let us understand the above program.The absolute pathname of the file is ... Read More
RuntimeMXBean in the management interface for the runtime system of the Java virtual machine −RuntimeMXBean runtimeMX = ManagementFactory.getRuntimeMXBean();Let us get the JVM uptime using the getUptime() method −runtimeMX.getUptime()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("JVM Uptime = "+runtimeMX.getUptime() + " ms"); } }OutputJVM Uptime = 81 msLet us run the code again, to get the following output −JVM Uptime = 78 ms
Use the clear() method to remove all elements from TreeSet.First, create a TreeSet and add elements −TreeSet set = new TreeSet(); set.add("65"); set.add("45"); set.add("19"); set.add("27"); set.add("89"); set.add("57");Now, remove all the elements −set.clear();The following is an example to remove all elements from TreeSet −Example Live Demoimport java.util.*; public class Demo { public static void main(String args[]){ TreeSet set = new TreeSet(); set.add("65"); set.add("45"); set.add("19"); set.add("27"); ... Read More
To begin auto increment from a specific point, use ALTER command. The syntax is as follows −ALTER TABLE yourTableName auto_increment = anySpecificPoint;To understand the above concept, let us create a table. The query to create a table is as follows −mysql> create table AutoIncrementSpecificPoint −> ( −> BookId int auto_increment not null, −> Primary key(BookId) −> ); Query OK, 0 rows affected (0.56 sec)Now you can insert records using insert command.The query is as follows −mysql> insert into AutoIncrementSpecificPoint values(); Query OK, 1 row affected (0.17 sec) ... Read More
LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. The LASER action was first proposed by Einstein.Applications of a LASERA LASER can be used in many fields. Some of its usages are given here.Used In Welding and Melting: The laser beam welding is mainly used for joining components using high welding speeds and low thermal distortion.Used In Holography: The reason that a hologram cannot be made without a LASER source is that coherence length for laser source can be very high due to which sustained interference pattern will be recorded on a hologram. This suggests the indispensable ... Read More
This example demonstrate about How to make Android character by character display text animation.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 src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Typewriter writer = new Typewriter(this); setContentView(writer); writer.setCharacterDelay(150); writer.animateText("Sample String...Sample String...Sample String..."); } }In the above code, ... Read More
Zero (0) is used as a number and also as the numerical digit. Zero gives the additive identity of the integers, real numbers, and many algebraic structures. It is used as a placeholder for writing numbers.Natural numbers start from 1, then 2 and so on. We cannot count backward with them. Integers, on the other hand, allows us to count backward. Zero winds up being a good choice for the number that should come after 1 as we count backward. Integers can go in both directions, to a positive infinity and also in the reverse direction to a negative infinity. ... Read More
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 −
The path for a file can be obtained using the method java.io.File.getPath(). This method returns the abstract pathname in the form of a pathname string and it requires no parameters.A program that demonstrates this is given as follows −Example Live Demoimport java.io.File; public class Demo { public static void main(String[] args) { File file = new File("C:" + File.separator + "jdk11.0.2" + File.separator, "demo1.java"); System.out.println("Path = " + file.getPath()); } }The output of the above program is as follows −OutputPath = C:/jdk11.0.2/demo1.javaNow let us understand the above program.The path name of the file ... Read More
RuntimeMXBean in the management interface for the runtime system of the Java virtual machine.RuntimeMXBean runtimeMX = ManagementFactory.getRuntimeMXBean();To get the class path, use the getClassPath() method −runtimeMX.getClassPath()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("Class path = "+runtimeMX.getClassPath()); } }OutputClass path = /home/cg/root/GNUstep/Library/Libraries/Java:/usr/GNUstep/Local/Library/Libraries/Java:/usr/GNUstep/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.jarRead More