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Articles by Chandu yadav
Page 4 of 81
DoubleStream forEachOrdered() method in Java
The forEachOrdered() method of the DoubleStream class in Java performs an action for each element of this stream. This assures that each element is processed in encounter order for streams that have a defined encounter order.The syntax is as followsvoid forEachOrdered(DoubleConsumer action)Here, DoubleConsumer represents an operation that accepts a single double-valued argument and returns no result. The parameter action is a non-interfering action to perform on the elements.To use the DoubleStream class in Java, import the following packageimport java.util.stream.DoubleStream;The following is an example to implement DoubleStream forEachOrdered() method in Java:Exampleimport java.util.stream.DoubleStream; public class Demo { public static void main(String[] ...
Read MoreHTML <area> type Attribute
The type attribute of the element sets the MIME (Multipurpose Internet Mail Extensions) type of the target url. Following is the syntax −Above, type_of_media is the standard media type of the linked document, for example, image/bmp, image/tiff, image/tff, etc.Let us now see an example to implement the type attribute of the element −Example Learning Learn these technologies with ease.... OutputNow, when you will click on the HTML area, then the following png image would be visible. We have set the media type in that as image/png for the same −
Read MoreThe toArray() method of Java AbstractCollection class
The toArray() method of the AbstractCollection class is used to return the elements in this collection. The elements are returned in the form of an array.The syntax is as followspublic Object[] toArray()To work with AbstractCollection class in Java, import the following packageimport java.util.AbstractCollection;At first, declare AbstractCollection and add some elementsAbstractCollection absCollection = new ArrayList(); absCollection.add("Laptop"); absCollection.add("Tablet"); absCollection.add("Mobile"); absCollection.add("E-Book Reader");Now, use the toArray() method to return the elements in the form of an arrayObject[] myArr = absCollection.toArray();The following is an example to implement AbstractCollection toArray() method in JavaExampleimport java.util.ArrayList; import java.util.AbstractCollection; public class Demo { public static void main(String[] args) ...
Read MoreLongStream forEach() method in Java
The forEach() method of the LongStream class in Java performs an action for each element of this stream.The syntax is as followsvoid forEach(LongConsumer action)Here, the parameter action is a non-interfering action to perform on the elements. LongConsumer represents an operation that accepts a single long-valued argument and returns no result.To use the LongStream class in Java, import the following packageimport java.util.stream.LongStream;The following is an example to implement LongStream forEach() method in JavaExampleimport java.util.*; import java.util.stream.LongStream; public class Demo { public static void main(String[] args) { LongStream longStream = LongStream.of(1000L, 12000L, 30000L); ...
Read MoreArrayBlockingQueue add() method in Java
To add elements to the ArrayBlockingQueue class, use the add() method.The syntax is as followsboolean add(E ele)Here, ele is the element to be added to the queue. To work with ArrayBlockingQueue class, you need to import the following packageimport java.util.concurrent.ArrayBlockingQueue;The following is an example to add elements in Java ArrayBlockingQueue classExampleimport java.util.concurrent.ArrayBlockingQueue; public class Demo { public static void main(String[] args) { ArrayBlockingQueue q = new ArrayBlockingQueue(7); q.add(100); q.add(250); q.add(300); q.add(450); q.add(550); q.add(600); q.add(700); System.out.println("ArrayBlockingQueue = " + q); } }OutputArrayBlockingQueue = [100, 250, 300, 450, 550, 600, 700]
Read MoreIterate through a LinkedList using an Iterator in Java
An Iterator can be used to loop through an LinkedList. The method hasNext( ) returns true if there are more elements in LinkedList and false otherwise. The method next( ) returns the next element in the LinkedList and throws the exception NoSuchElementException if there is no next element.A program that demonstrates this is given as follows.Exampleimport java.util.LinkedList; import java.util.Iterator; public class Demo { public static void main(String[] args) { LinkedList l = new LinkedList(); l.add("John"); l.add("Sara"); l.add("Susan"); l.add("Betty"); l.add("Nathan"); ...
Read MoreLongStream mapToInt() method in Java
The mapToInt() method returns an IntStream consisting of the results of applying the given function to the elements of this stream.The syntax is as followsmapToInt(LongToIntFunction mapper)Here, the parameter mapper is the stateless function applied to each element.Declare LongStream and add some elementsLongStream longStream = LongStream.of(1000L, 13000L, 18000L);Now, use the IntStream and mapToInt()IntStream intStream = longStream.mapToInt(val -> (int) val);The following is an example to implement LongStream mapToInt() in JavaExampleimport java.util.*; import java.util.stream.IntStream; import java.util.stream.LongStream; public class Demo { public static void main(String[] args) { LongStream longStream = LongStream.of(1000L, 13000L, 18000L); IntStream intStream = longStream.mapToInt(val ...
Read MoreLongStream asDoubleStream() method in Java
The asDoubleStream() method of the LongStream class in Java returns a DoubleStream consisting of the elements of this stream, converted to double.The syntax is as follows.DoubleStream asDoubleStream()Here, DoubleStream is a sequence of primitive double-valued elements. To use the LongStream class in Java, import the following package.import java.util.stream.LongStream;Create LongStream and add elements.LongStream longStream = LongStream.of(2000L, 35000L, 45000L);Now, convert it to double and return using asDoubleStream() method.DoubleStream s = longStream.asDoubleStream();The following is an example to implement LongStream asDoubleStream() method.Exampleimport java.util.stream.LongStream; import java.util.stream.DoubleStream; public class Demo { public static void main(String[] args) { LongStream longStream = LongStream.of(2000L, 35000L, 45000L); ...
Read MoreWhat is the Keys property of Hashtable class in C#?
Gets an ICollection containing the keys in the Hashtable. It displays all the keys in the collection. In the below code, to get all the keys we have used a loop to loop through the collection.foreach (int k in h.Keys) { Console.WriteLine(k); }The above displays all the keys as shown in the following code −Exampleusing System; using System.Collections; class Program { static void Main() { Hashtable h = new Hashtable(); h.Add(1, "India"); h.Add(2, "US"); h.Add(3, "UK"); h.Add(4, "Australia"); h.Add(5, "Netherland"); foreach (int k in h.Keys) { Console.WriteLine(k); } } }Output5 4 3 2 1
Read MoreC# Enum IsDefined Method
The IsDefined method returns true if a given integral value, or its name as a string, is present in a specified enum.The following is our enum −enum Subjects { Maths, Science, English, Economics };The above is initialized by default i.e.Maths = 0, Science = 1, English = 2, Economics = 3Therefore, when we will find 3 using IsDefined(), then it will return True as shown below −Exampleusing System; public class Demo { enum Subjects { Maths, Science, English, Economics }; public static void Main() { object ob; ob = 3; Console.WriteLine("{0} = {1}", ob, Enum.IsDefined(typeof(Subjects), ob)); } }Output3 = True
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