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Object Oriented Programming Articles
Page 246 of 589
The set() method of AbstractList class in Java
The set() method of the AbstractList class is used to replace the element at the specified position in this list with the specified element. It returns the element that gets replaced.The syntax is as follows:public E set(int index, E ele)Here, the parameter index is the index of the element to replace, whereas ele is the element to be stored at the specified position.To work with the AbstractList class, import the following package:import java.util.AbstractList;The following is an example to implement set() method of the AbstractlList class in Java:Exampleimport java.util.LinkedList; import java.util.AbstractList; public class Demo { public static void main(String[] args) ...
Read MoreThe contains() method of Java AbstractCollection class
The contains() method of the AbstractCollection class checks whether an element is in the AbstractCollection or not. It returns a Boolean i.e. TRUE if the element is in the collection, else FALSE is returned.The syntax is as follows:public boolean contains(Object ele)Here, ele is the element to be checked for existence.To work with AbstractCollection class in Java, import the following package:import java.util.AbstractCollection;The following is an example to implement AbstractCollection contains() method in Java:Exampleimport java.util.ArrayList; import java.util.AbstractCollection; public class Demo { public static void main(String[] args) { AbstractCollection absCollection = new ArrayList(); absCollection.add("Football"); ...
Read MoreThe remove() method of AbstractList class in Java
Remove an element at a specified position from the list using the remove() method. The position is to be set as index parameter in the method itself. It returns the element which is removed.The syntax is as follows:public E remove(int index)Here, index is the index from where you want to delete the element.To work with the AbstractList class, import the following package:import java.util.AbstractList;The following is an example to implement remove() method of the AbstractlList class in Java:Exampleimport java.util.ArrayList; import java.util.AbstractList; public class Demo { public static void main(String[] args) { AbstractList myList = new ArrayList(); ...
Read MoreThe get() method of CopyOnWriteArrayList in Java
The get() method of CopyOnWriteArrayList class returns the element at the specified position in this list.The syntax is as follows:E get(int index)Here, the parameter index is the position from where you want the element.To work with CopyOnWriteArrayList class, you need to import the following package:import java.util.concurrent.CopyOnWriteArrayList;The following is an example to implement CopyOnWriteArrayList class get() method in Java:Exampleimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); arrList.add(100); arrList.add(250); arrList.add(400); arrList.add(500); arrList.add(650); ...
Read MoreDoubleStream 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 MoreThe add() method of Java AbstractSequentialList class
The AbstractSequentialList class has the add(int index, E ele) method to add element to the specific position. You can also use the add() method inherited from AbstractList class.add(int index, E ele) methodThe syntax is as follows:add(int index, E ele)Here, index is where the element is to be inserted. The ele is the element to be inserted.To work with the AbstractSequentialList class in Java, you need to import the following package:import java.util.AbstractSequentialList;The following is an example to implement AbstractSequentialList add() method in Java:Exampleimport java.util.LinkedList; import java.util.AbstractSequentialList; public class Demo { public static void main(String[] args) { AbstractSequentialList ...
Read MoreThe clear() method of CopyOnWriteArrayListin Java
To remove all the elements from the CopyOnWriteArrayList, use the clear() method. It empties the list.The syntax is as follows:void clear()To work with CopyOnWriteArrayList class, you need to import the following package:import java.util.concurrent.CopyOnWriteArrayList;The following is an example to implement CopyOnWriteArrayList class clear() method in Java:Exampleimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); arrList.add(220); arrList.add(250); arrList.add(400); arrList.add(500); arrList.add(650); arrList.add(700); arrList.add(800); System.out.println("CopyOnWriteArrayList String Representation = ...
Read MoreLongStream range() method in Java
The range() method of the LongStream class in Java returns a sequential ordered LongStream from startInclusive to endExclusive by an incremental step of 1. This is inclusive of the initial element and exclusive of the last element.The syntax is as follows:static LongStream range(long startInclusive, long endExclusive)Here, startInclusive is the first value, whereas the endExclusive is the last.To use the LongStream class in Java, import the following package:import java.util.stream.LongStream;The following is an example to implement LongStream range() method in Java:Exampleimport java.util.stream.LongStream; public class Demo { public static void main(String[] args) { LongStream longStream = LongStream.range(20L, 25L); ...
Read MoreIntStream sequential() method in Java
The sequential() method of the IntStream class in Java is used to return a sequential IntStream. The syntax is as follows:IntStream sequential()First, create an IntStream and elements in a range using the range() method:IntStream intStream1 = IntStream.range(11, 21);Now, for a sequential IntStream, use the sequential() method like this:IntStream intStream2 = intStream1.sequential();The following is an example to implement IntStream sequential() method in Java:Exampleimport java.util.*; import java.util.stream.IntStream; public class Demo { public static void main(String[] args) { IntStream intStream1 = IntStream.range(11, 21); IntStream intStream2 = intStream1.sequential(); intStream2.forEach(System.out::println); } }Output11 12 13 14 15 16 17 18 19 20
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