The findAny() method of the LongStream class in Java returns an OptionalLong describing some element of the stream, or an empty OptionalLong if the stream is empty.The syntax is as follows:OptionalLong findAny()Here, OptionalLong is a container object which may or may not contain a long value.To use the LongStream class in Java, import the following package:import java.util.stream.LongStream;The following is an example to implement LongStream findAny() method. The isPresent() method of the OptionalLong class returns true if the value is present:Exampleimport java.util.OptionalLong; import java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream longStream = ... Read More

To create Ennead Tuple, you can use the with() method. With that, you can also add elements to it. 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 → 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 ... Read More

The toArray() method of the ArrayBlockingQueue class returns an array containing all of the elements in this queue.The syntax is as follows:Object[] toArray()To work with ArrayBlockingQueue class, you need to import the following package:import java.util.concurrent.ArrayBlockingQueue;The following is an example to implement toArray() method of Java ArrayBlockingQueue class:Example Live Demoimport java.util.ArrayList; import java.util.concurrent.ArrayBlockingQueue; public class Demo {    public static void main(String[] args) throws InterruptedException {       ArrayBlockingQueue q = new ArrayBlockingQueue(10);       q.add(200);       q.add(310);       q.add(400);       q.add(450);       q.add(500);       q.add(550);       q.add(700); ... Read More

The addAll() method of the AbstractSequentialList class inserts all the elements in the specified collection into this list at the specified position. Set the specified position as the parameter.The syntax is as follows:boolean addAll(int index, Collection

The size() method of the AbstractCollection class returns the numbers of elements in the collection. The method returns Integer.MAX_VALUE if the total number of elemnts in the collection exceeds the Interger.MAX_VALUE.The syntax is as follows:public abstract int size()To work with AbstractCollection class in Java, import the following package:import java.util.AbstractCollection;The following is an example to implement AbstractCollection size() method in Java:Example Live Demoimport java.util.ArrayList; import java.util.AbstractCollection; public class Demo {    public static void main(String[] args) {       AbstractCollection absCollection = new ArrayList();       absCollection.add("Laptop");       absCollection.add("Tablet");       absCollection.add("Mobile");       absCollection.add("E-Book Reader"); ... Read More

The length() method of the StringJoiner class in Java 8 is used to get the length of the current value of StringJoiner.To work with the StringJoiner in Java 8, import the following package:import java.util.StringJoiner;The syntax is as follows:public int length()First, create a StringJoiner:StringJoiner strJoin = new StringJoiner(", "); strJoin.add("US"); strJoin.add("India"); strJoin.add("Netherlands"); strJoin.add("Australia");Now, find the length of the StringJoiner i.e. the number of elements in it using the length() method:strJoin.length());The following is an example to implement StringJoiner length() method in Java:Example Live Demoimport java.util.StringJoiner; public class Demo {    public static void main(String[] args) {       // StringJoiner     ... Read More

An Octetclass is a Tuple of 8 element. It is in the JavaTuples library. The following is the declaration of the Octet class:public final class Octet extends Tuple implements IValue0, IValue1, IValue2, IValue3, IValue4, IValue5, IValue6, IValue7Let us first see what we need to work with JavaTuples. To work with Octet class in JavaTuples, you need to import the following package:import org.javatuples.Octet;Some of its features include:TypesafeSerializableComparableIterableImmutableNote: 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 ... Read More

If you want to remove an element from the AbstractCollection classs, use the remove() method. It returns TRUE if the elements requested to be removed is successfully removed from the collection.The syntax is as follows:public boolean remove(Object ob)Here, ob is the element to be removed the from this Collection. Whereas, the class Object is the root of the class hierarchy.To work with AbstractCollection class in Java, import the following package:import java.util.AbstractCollection;The following is an example to implement AbstractCollection remove() method in Java:Example Live Demoimport java.util.Iterator; import java.util.ArrayList; import java.util.AbstractCollection; public class Demo {    public static void main(String[] args) {   ... Read More

The merge() method of the StringJoiner class in Java 8 is used to merge the contents of the StringJoiner str, which is passed as a parameter. The content gets added as the next element.The syntax is as follows:public StringJoiner merge(StringJoiner str)Here, str is the StringJoiner content to be merged.To work with the StringJoiner in Java 8, import the following package:import java.util.StringJoiner;The following is an example to implement StringJoiner merge() method in Java:Example Live Demoimport java.util.StringJoiner; public class Demo {    public static void main(String[] args) {       // StringJoiner 1       StringJoiner strJoin1 = new StringJoiner(" "); ... Read More

To insert element into the stream, you need to use the add() method of the IntStream.Builder.The syntax is as follows:default IntStream.Builder add(int t)Here, parameter t is the element to be inserted.Declare IntStream.Builder:IntStream.Builder builder = IntStream.builder();Add some elements to the Builder using add() method:builder.add(10); builder.add(25); builder.add(33); builder.add(42);The following is an example to implement IntStream.Builder add() method in JavaExample Live Demoimport java.util.stream.IntStream; public class Demo {    public static void main(String[] args) {       IntStream.Builder builder = IntStream.builder();       System.out.println("Elements in the stream...");       builder.add(10);       builder.add(25);       builder.add(33);       builder.add(42); ... Read More