Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles by Krantik Chavan
Page 6 of 18
DoubleStream forEach() method in Java
The forEach() method of the DoubleStream class performs an action for each element of this stream.The syntax is as follows:void forEach(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 package:import java.util.stream.DoubleStream;Create a DoubleStream and add some elements to the stream:DoubleStream doubleStream = DoubleStream.of(45.7, 67.8, 89.7, 95.6);Now, display the elements:doubleStream.forEach(System.out::println);The following is an example to implement DoubleStream forEach() method in Java:Exampleimport java.util.stream.DoubleStream; public class Demo { public static void main(String[] args){ ...
Read MoreArrayBlockingQueue put() method in Java
The put() method of the ArrayBlockingQueue class inserts the specified element at the tail of this queue. It waits for the space to become available, if the queue is full.The syntax is as follows:void put(E e)Here, e is the element to be inserted.To work with ArrayBlockingQueue class, you need to import the following package:import java.util.concurrent.ArrayBlockingQueue;The following is an example to implement put() method of Java ArrayBlockingQueue class:Exampleimport java.util.concurrent.ArrayBlockingQueue; public class Demo { public static void main(String[] args) throws InterruptedException { ArrayBlockingQueue q = new ArrayBlockingQueue(7); q.put(200); q.put(310); ...
Read MoreMonthDay isSupported() Method in Java
It can be checked if a ChronoField is supported by the MonthDay class or not by using the isSupported() method in the MonthDay class in Java. This method requires a single parameter i.e. the ChronoField to check. It returns true if the ChronoField is supported by the MonthDay class and false otherwise.A program that demonstrates this is given as followsExampleimport java.time.*; import java.time.temporal.*; public class Demo { public static void main(String[] args) { MonthDay md = MonthDay.now(); System.out.println("The MonthDay is: " + md); boolean flag = md.isSupported(ChronoField.MONTH_OF_YEAR); ...
Read MoreWhat is the IntStream.Builder accept() method in Java
Insert an element into IntStream using the IntStream.Builder accept() method. It adds element to the stream being built.The syntax is as follows:void accept(int t)Here, parameter t is the input argument.The elements are inserted as shown below in the stream:builder.accept(10); builder.accept(15); builder.accept(25); builder.accept(39); builder.accept(45);The following is an example to implement IntStream.Builder accept() method in Java:Exampleimport java.util.stream.IntStream; public class Demo { public static void main(String[] args) { IntStream.Builder builder = IntStream.builder(); System.out.println("Elements of the stream..."); builder.accept(10); builder.accept(15); builder.accept(25); builder.accept(39); builder.accept(45); ...
Read MoreIntStream.Builder add() method in Java
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 JavaExampleimport 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 MoreStringJoiner merge() method in Java 8
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:Exampleimport java.util.StringJoiner; public class Demo { public static void main(String[] args) { // StringJoiner 1 StringJoiner strJoin1 = new StringJoiner(" "); ...
Read MoreDoubleStream empty() method in Java
The empty() method of the DoubleStream class in Java returns an empty sequential DoubleStream.The syntax is as follows:static DoubleStream empty()To use the DoubleStream class in Java, import the following package:import java.util.stream.DoubleStream;Let us create an empty DoubleStream:DoubleStream doubleStream = DoubleStream.empty();Now, let us check the number of elements in the stream. It will be 0, since the stream is set to empty:doubleStream.count()The following is an example to implement DoubleStream empty() method in Java:Exampleimport java.util.stream.DoubleStream; public class Demo { public static void main(String[] args) { DoubleStream doubleStream = DoubleStream.empty(); System.out.println("Number of elements in the stream = ...
Read MoreFormat a message with date in Java
To format the message with date in Java, we use the MessageFormat class and the Date class. The MessageFormat class gives us a way to produce concatenated messages which are not dependent on the language. The MessageFormat class extends the Serializable and Cloneable interfaces.Declaration - The java.text.MessageFormat class is declared as follows −public class MessageFormat extends FormatThe MessageFormat.format(pattern, params) method formats the message and fills in the missing parts using the objects in the params array matching up the argument numbers and the array indices.The format method has two arguments, a pattern and an array of arguments. The pattern contains placeholder ...
Read MoreDisplay the amount of free memory in the Java Virtual Machine
In order to display the amount of free memory in the Java Virtual Machine, we use the freeMemory() method. It is a method of the java.lang.Runtime Class. It returns the amount of free memory in the Java Virtual Machine. If we call the gc method, there is a possibility of increase of free memory.Declaration − The java.lang.Runtime.freeMemory() method is declared as follows −public long freeMemory()Let us see a program to display the amount of free memory in the Java Virtual Machine −Examplepublic class Example { public static void main(String[] args) { // print statement at the ...
Read MoreGet number of available processors in Java
In order to get the number of available processors in Java, we use the availableProcessors() method. The java.lang.Runtime.availableProcessors() method returns the number of processors which are available to the Java virtual machine. This number may vary during a particular call of the virtual machine.Declaration − The java.lang.Runtime.availableProcessors() method is declared as follows −public int availableProcessors()Let us see a program to get the number of available processors in Java −Examplepublic class Example { public static void main(String[] args) { // print statement at the start of the program System.out.println("Start..."); System.out.print("Number of ...
Read More