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Java Articles
Page 387 of 450
How to create LabelValue Tuple in Java?
You can create a LabelValue tuple using the with() method or using just the constructor. Let us first see what we need to work with JavaTuples. To work with LabelValue class in JavaTuples, you need to import the following packageimport org.javatuples.LabelValue;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 JavaTuplesSteps: How to run JavaTuples program in EclipseThe following is an example to create ...
Read MoreIntStream.Builder build() method in Java
The build() method builds the stream. It transitions the builder to the built state. It returns the built stream. First, add elements to the streamIntStream.Builder builder = IntStream.builder(); builder.add(10); builder.add(25); builder.add(33);Now the stream is in the built phasebuilder.build().forEach(System.out::println);The syntax is as followsIntStream build()The following is an example to implement IntStream.Builder build() 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 MoreThe listIterator() method of CopyOnWriteArrayList in Java starting at a specified position
The listIterator() method CopyOnWriteArrayList class returns a list iterator over the elements in this list, beginning at the specified position in the list.The syntax is as followspublic ListIterator listIterator(int index)Here, index is the index of the first element to be returned from the list iterator.To work with CopyOnWriteArrayList class, you need to import the following packageimport java.util.concurrent.CopyOnWriteArrayList;The following is an example to implement CopyOnWriteArrayList class listIterator() method in Java. We have set the index as 3, therefore, the list would be iterated from index 3Example Live Demoimport java.util.Iterator; import java.util.ListIterator; import java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] ...
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 followsExample Live Demoimport 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 MoreIntStream map() method in Java
The IntStream map() method returns the new stream consisting of the results of applying the given function to the elements of this stream.The syntax is as followsIntStream map(IntUnaryOperator mapper)Here, mapper parameter is a non-interfering, stateless function to apply to each elementCreate an IntStream and add some elementsIntStream intStream1 = IntStream.of(20, 35, 40, 55, 60);Now, map it with the new IntStream and display the updated stream elements applying the condition in the map() functionIntStream intStream2 = intStream1.map(a -> (a + a));The following is an example to implement IntStream map() method in JavaExample Live Demoimport java.util.*; import java.util.stream.IntStream; public class Demo { ...
Read MoreIntStream flatMap() method in Java
The flatMap() method of the IntStream class returns a stream consisting of the results of replacing each element of this stream with the contents of a mapped stream produced by applying the provided mapping function to each element.The syntax is as followsIntStream flatMap(IntFunction
Read MoreThe contains() method of CopyOnWriteArrayList in Java
The contains() method of the CopyOnWriteArrayList class is used to get the specified element. It returns TRUE if the element is in the List, else FALSE is returned.The syntax is as followsboolean contains(Object ob)Here, ob is the element to be checked for existence. To work with CopyOnWriteArrayList class, you need to import the following packageimport java.util.concurrent.CopyOnWriteArrayList;The following is an example to implement CopyOnWriteArrayList class contains() method in JavaExample Live Demoimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); arrList.add(100); arrList.add(250); ...
Read MoreThe add() method of CopyOnWriteArrayList in Java
Two types of add() methods are available in the CopyOnWriteArrayList class: add(E e) methodTo add elements in CopyOnWriteArrayList class in Java, use the add() method. Here, the element is appended to the end of the list.The syntax is as followsboolean add(E e)Here, the parameter e is the element to be appended to this list.To work with CopyOnWriteArrayList class, you need to import the following packageimport java.util.concurrent.CopyOnWriteArrayList;The following is an example to add elements in the CopyOnWriteArrayList class in JavaExample Live Demoimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); ...
Read MoreInsert the specified element at the specified position in Java CopyOnWriteArrayList
Using the add() method, insert the specified element at the specified position in the CopyOnWriteArrayList.The syntax is as followsvoid add(int index, E ele)Here, the parameter index is where you want to insert the element and ele is the element to be inserted to this list. To work with CopyOnWriteArrayList class, you need to import the following packageimport java.util.concurrent.CopyOnWriteArrayList;The following is an example to add elements in the CopyOnWriteArrayList class in JavaExample Live Demoimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); arrList.add(100); arrList.add(250); ...
Read MoreDoubleStream 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:Example Live Demoimport java.util.stream.DoubleStream; public class Demo { public static void ...
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