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Programming Articles
Page 1524 of 2547
DoubleStream.Builder build() method in Java
The build() method of the DoubleStream.Builder class builds the stream. It transitions this builder to the built state.The syntax is as followsDoubleStream build()To use the DoubleStream.Builder class in Java, import the following packageimport java.util.stream.DoubleStream;The following is an example to implement DoubleStream.Builder build() method in Java:Exampleimport java.util.stream.DoubleStream; public class Demo { public static void main(String[] args) { DoubleStream.Builder builder = DoubleStream.builder(); builder.add(34.5); builder.add(87.1); builder.add(35.6); builder.add(66.1); builder.add(36.8); builder.add(77.4); builder.add(88.2); builder.add(68.9); builder.build().forEach(System.out::println); } }Output34.5 87.1 35.6 66.1 36.8 77.4 88.2 68.9
Read MoreJava program to print a given matrix in Spiral Form.
Following is a Java program to print the spiral form of a given matrix.Examplepublic class PrintMatrixInSpiralForm { public static void main(String args[]){ int a[][]={{1,2,3},{4,5,6},{7,8,9}}; int w = 0; int x = a.length-1; int y = 0; int z = a[0].length-1; while(w
Read MoreCheck if a particular element exists in Java LinkedHashSet
Use the contains() method to check if a specific element exists in LinkedHashSet or not.Let us first create a LinkedHashSet and add some elements −LinkedHashSet l = new LinkedHashSet(); l.add(new String("1")); l.add(new String("2")); l.add(new String("3")); l.add(new String("4")); l.add(new String("5")); l.add(new String("6")); l.add(new String("7"));Now, check whether it contains element “5” or not −l.contains("5")The following is an example to check if a particular element exists in LinkedHashSet −Exampleimport java.util.*; public class Demo { public static void main(String[] args) { LinkedHashSet l = new LinkedHashSet(); l.add(new String("1")); l.add(new String("2")); l.add(new ...
Read MoreProgram to print a matrix in Diagonal Pattern.
Following is the Java program to print diagonal pattern of a given matrix.Examplepublic class DiagonalMatrix { public static void main(String args[]){ int a[][]={{1,2,3},{4,5,6},{7,8,9}}; int rows = a.length; int columns = a[0].length; for (int i = 0; i < rows; i++) { for (int r = i, c = 0; r >= 0 && c < columns; r--, c++){ System.out.print(a[r][c] + " "); } System.out.println(); } for (int i = 1; i < columns; i++) { for (int r = rows-1, c = i; r >= 0 && c < columns; r--, c++) { System.out.print(a[r][c] + " "); } System.out.println(); } } }Output1 4 2 7 5 3 8 6 9
Read MoreConvert elements in a HashSet to an array in Java
First, create a HashSet and elements to it −HashSet hs = new HashSet(); // add elements to the hash set hs.add("B"); hs.add("A"); hs.add("D"); hs.add("E"); hs.add("C"); hs.add("F"); hs.add("K");Let us now convert the above HashSet to an array −Object[] ob = hs.toArray();The following is an example to convert elements in a HashSet to an array −Exampleimport java.util.*; public class Demo { public static void main(String args[]) { // create a hash set HashSet hs = new HashSet(); // add elements to ...
Read MoreArrayBlockingQueue remainingCapacity() Method in Java
The remainingCapacity() method of the ArrayBlockingQueue class in Java is used to return the number of additional elements that the queue can adopt without blocking.The syntax is as followsint remainingCapacity()To work with ArrayBlockingQueue class, you need to import the following packageimport java.util.concurrent.ArrayBlockingQueue;The following is an example to implement remainingCapacity() method of Java ArrayBlockingQueue classExampleimport java.util.concurrent.ArrayBlockingQueue; public class Demo { public static void main(String[] args) throws InterruptedException { ArrayBlockingQueue q = new ArrayBlockingQueue(10); q.add(120); q.add(400); q.add(450); q.add(500); System.out.println("ArrayBlockingQueue = " + q); ...
Read MoreProgram for converting Alternate characters of a string to Upper Case.
You can convert a character to upper case using the toUpperCase() method of the character class.ExampleFollowing program converts alternate characters of a string to Upper Case.import java.util.Scanner; public class UpperCase { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter a string :"); String str = sc.nextLine(); str = str.toLowerCase(); char[] ch = str.toCharArray(); for(int i=0; i
Read MoreC++ Program to Apply Above-Below-on Test to Find the Position of a Point with respect to a Line
This is a C++ program to apply Above-Below-on Test to find the position of a point with respect to a Line. For any point t (xt, yt) on the plane, its position with respect to the line L connecting m and n is found by calculating the scalar s −Y = A xt + B yt + CIf Y< 0, t lies in the clockwise halfplane of L; if Y>0, t lies on the counter-clockwise halfplane; if Y= 0, t lies on L.AlgorithmBegin Take the points as input. For generating equation of the line, generate random numbers for ...
Read MoreConvert a Set into a List in Java
First, create a Set and add elements −Set s = new HashSet(); s.add("P"); s.add(new Date()); s.add(new Long(898999)); s.add("Q"); s.add("R"); s.add(new Integer(1));Convert the above Set to a List −List l = new ArrayList(s);The following is an example to convert a set into a list in Java −Exampleimport java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Set; import java.util.HashSet; public class Demo { public static void main(String[] args) { Set s = new HashSet(); s.add("P");; s.add(new Date()); s.add(new Long(898999)); s.add("Q"); s.add("R"); s.add(new ...
Read MoreThe hashCode() method of CopyOnWriteArrayList method in Java
To get the hash code value of the list, you need to use the hashCode() method of the CopyOnWriteArrayList class.The syntax is as followspublic int hashCode()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 hashCode() method in JavaExampleimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); arrList.add(30); arrList.add(40); arrList.add(60); arrList.add(70); arrList.add(90); arrList.add(100); arrList.add(120); ...
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