Java Articles - Page 420 of 745

The count() method of the LongStream class in Java is used to return the count of elements in this stream.The syntax is as follows.long count()To use the LongStream class in Java, import the following package.import java.util.stream.LongStream;Create a LongStream and add some elements.LongStream longStream = LongStream.of(50L, 30L, 80L, 40L, 15L, 60L);Now, get the count of elements.longStream.count()The following is an example to implement LongStream count() method in Java.Example Live Demoimport java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream longStream = LongStream.of(50L, 30L, 80L, 40L, 15L, 60L);       System.out.println("The number of elements in the ... Read More

The day of the month for a particular LocalDate can be obtained using the getDayOfMonth() method in the LocalDate class in Java. This method requires no parameters and it returns the day of the month which can be in the range of 1 to 31.A program that demonstrates this is given as followsExample Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalDate ld = LocalDate.parse("2019-02-14");       System.out.println("The LocalDate is: " + ld);       System.out.println("The day of the month is: " + ld.getDayOfMonth());    } }OutputThe LocalDate is: 2019-02-14 ... Read More

The distinct() method in the LongStream class returns a stream consisting of the distinct elements of this stream.The syntax is as follows.LongStream distinct()To use the LongStream class in Java, import the following package.import java.util.stream.LongStream;Create a LongStream and add elements.LongStream longStream = LongStream.of(100L, 150L, 100L, 300L, 150L, 500L);Now, get the distinct elements.longStream.distinct().The following is an example to implement LongStream distinct() method in Java. Here, we have repeated elements in the stream.Example Live Demoimport java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream longStream = LongStream.of(100L, 150L, 100L, 300L, 150L, 500L);       System.out.println("Distinct elements..."); ... Read More

A Decade class is a Tuple with 10 elements. It is in the JavaTuples library. The following is the declaration −public final class Decade extends Tuple implements IValue0, IValue1 , IValue2, IValue3, IValue4, IValue5, IValue6, IValue7, IValue8, IValue9Let us first see what we need to work with JavaTuples. To work with Decade class in JavaTuples, you need to import the following package −import org.javatuples.Decade;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. ... Read More

The day of the week for a particular LocalDate can be obtained using the getDayOfWeek() method in the LocalDate class in Java. This method requires no parameters and it returns the day of the week.A program that demonstrates this is given as followsExample Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalDate ld = LocalDate.parse("2019-02-14");       System.out.println("The LocalDate is: " + ld);       System.out.println("The day of the week is: " + ld.getDayOfWeek());    } }OutputThe LocalDate is: 2019-02-14 The day of the week is: THURSDAYNow let us understand ... Read More

An immutable copy of the LocalDate where the years are subtracted from it can be obtained using the minusYears() method in the LocalDate class in Java. This method requires a single parameter i.e. the number of years to be subtracted and it returns the instant with the subtracted years.A program that demonstrates this is given as followsExample Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalDate ld1 = LocalDate.parse("2019-02-14");       System.out.println("The LocalDate is: " + ld1);       LocalDate ld2 = ld1.minusYears(2);       System.out.println("The LocalDate after subtracting ... Read More

Use the fromCollection() method to create a Decade tuple from a List collection in Java. Let us first see what we need to work with JavaTuples. To work with Decade class in JavaTuples, you need to import the following package.import org.javatuples.Decade;Note Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for all the steps to run JavaTuples.Steps: How to run JavaTuples program in EclipseThe following is an example to create ... Read More

To add value in Ennead class in JavaTuples, you need to use the addAtX() method. Here, X represents the index wherein you need to add the value i.e. for index 2, use addAt2() method. Add the specific value as the parameter value of the method. For example −addAt2(“John”);Let us first see what we need to work with JavaTuples. To work with Ennead class in JavaTuples, you need to import the following package −import org.javatuples.Ennead;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> ... Read More

The LongStream builder() class in Java is used to return a builder for a LongStream.The syntax is as follows.static LongStream.Builder builder()Here, LongStream.Builder is a mutable builder for a LongStream.To use the LongStream class in Java, import the following package.import java.util.stream.LongStream;The following is an example to implement LongStream builder() method in Java.Example Live Demoimport java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream longStream = LongStream.builder().add(5).build();       longStream.forEach(System.out::println);    } }Output5

The contains() method of the Ennead Tuple in Java is used to search for a value in the Tuple. To find the existence of a value, you need to just set it as a parameter of the method. It returns a boolean value i.e. TRUE is returned for the existence of a value, else FALSE.Let us first see what we need to work with JavaTuples. To work with Ennead class in JavaTuples, you need to import the following package −import org.javatuples.Ennead;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project ... Read More