Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
The HTML DOM FileUpload files property returns a FileList object which contains all the files that are selected by the file upload button.SyntaxFollowing is the syntax −object.filesExampleLet us see an example of FileUpload files property − Live Demo body{ text-align:center; background-color:#52B2CF; color:#fff; } .btn{ background-color:coral; border:none; height:2rem; border-radius:50px; width:60%; margin:1rem auto; display:block; color:#fff; outline:none; } .show{ ... Read More
The HTML DOM Input Email pattern property sets/returns the regular expression corresponding to Email Input. The pattern attribute’s value is checked against the text typed in an email field.SyntaxFollowing is the syntax −Returning regular expressioninputEmailObject.patternSetting pattern to regular expressioninputEmailObject.pattern = ‘RegExp’ExampleLet us see an example of Input Email pattern property − Live Demo Input Email pattern form { width:70%; margin: 0 auto; text-align: center; } * { padding: 2px; margin:5px; } input[type="submit"] { border-radius: 10px; ... Read More
Given a 2d array of n*n and the task is to find the antispiral arrangement of the given matrixInput : arr[4][4]={1,2,3,4, 5,6,7,8, 9,10,11,12 13,14,15,16} Output : 1 6 11 16 4 7 10 13AlgorithmSTART Step 1 -> declare start variables as r=4, c=4, i and j Step 2 -> initialize array as mat[r][c] with elements Step 3 -> Loop For i=0 and i print Step 5 -> Loop For i=0 and i
Let us first create a List:List list = Arrays.asList(25, 50, 100, 200, 250, 300, 400, 500);Now, create a stream from the List:Stream stream = list.stream(); Arrays.toString(stream.toArray()));The following is an example to retrieve a Stream from a ListExampleimport java.util.Arrays; import java.util.List; import java.util.stream.Stream; public class Demo { public static void main(String[] args) { List list = Arrays.asList(25, 50, 100, 200, 250, 300, 400, 500); System.out.println("List elements..."); for (int res : list) { System.out.println(res); } Stream stream = list.stream(); System.out.println("Stream = "+Arrays.toString(stream.toArray())); } }OutputList elements... 25 50 100 200 250 300 400 500 Stream = [25, 50, 100, 200, 250, 300, 400, 500]
This example demonstrate about Android Notification Example with Vibration, Sound, Action and Big View StylesStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.javapackage app.tutorialspoint.com.notifyme; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.support.v4.app.NotificationCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { private final static String default_notification_channel_id = "default"; @Override protected void onCreate (Bundle ... Read More
To get the same result like AND in MongoDB, use the $all operator. Let us first create a collection with documents −> db.andQueryDemo.insertOne({"StudentName":"Carol Taylor", "FavouriteSubject":["C", "Java", "MongoDB", "MySQL"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cc73e7a8f9e6ff3eb0ce433") } > db.andQueryDemo.insertOne({"StudentName":"David Miller", "FavouriteSubject":["C++", "Java", "MongoDB", "SQL Server"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cc73ea48f9e6ff3eb0ce434") } > db.andQueryDemo.insertOne({"StudentName":"Carol Taylor", "FavouriteSubject":["Python", "PL/SQL"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cc73ed38f9e6ff3eb0ce435") }Following is the query to display all documents from a collection with the help of find() method −> db.andQueryDemo.find().pretty();This will produce the following output −{ "_id" : ObjectId("5cc73e7a8f9e6ff3eb0ce433"), ... Read More
Here we will see how to get the sorted sequence using B-Tree. The B-tree is n-ary tree. To get the sorted sequences, we can create a B-tree, then add the numbers into it. Here the B-tree can hold maximum 5 nodes. If number of nodes increases, split the node and form new level. As the nodes are holding few number of elements like 5 (at most), we are using Bubble sorting techniques to sort them. as the number of elements is very low, then it will not affect too much on its performance.After traversing the tree, we will get all ... Read More
To set the alignment of the label content along the Y axis, use the setVerticalAlignment() method. Let us first set a label component. We have set the label background color as well so that we can check the alignment of the label’s content properly −JLabel label = new JLabel("Product Name "); label.setPreferredSize(new Dimension(190, 100)); label.setOpaque(true); label.setBackground(Color.ORANGE);Now, we will align the label content along the Y axis −label.setVerticalAlignment(JLabel.CENTER);The following is an example to set the alignment of the JLabel content along the Y axis −Examplepackage my; import java.awt.Color; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Font; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextArea; import javax.swing.WindowConstants; public class SwingDemo { public static void main(String[] args) { JFrame frame = new JFrame("Our Frame ... Read More
You can use $in operator. Let us first create a collection with documents −> db.tagCountDemo.insertOne({"ListOfNames":["John", "Sam", "Carol"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cd64b387924bb85b3f48944") } > db.tagCountDemo.insertOne({"ListOfNames":["Bob", "David", "John"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cd64b4b7924bb85b3f48945") } > db.tagCountDemo.insertOne({"ListOfNames":["Mike", "Robert", "Chris"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cd64b5d7924bb85b3f48946") } > db.tagCountDemo.insertOne({"ListOfNames":["James", "Carol", "Jace"]}); { "acknowledged" : true, "insertedId" : ObjectId("5cd64b717924bb85b3f48947") }Following is the query to display all documents from a collection with the help of find() method −> db.tagCountDemo.find().pretty();This will produce the following output −{ "_id" : ObjectId("5cd64b387924bb85b3f48944"), "ListOfNames" : ... Read More
In this section we will see the isnormal() function in C++. This function is present in the cmath library. This function is used to check whether a number is normal or not. The numbers that are considered as non-normal are zeros, infinity or NAN.This function takes float, double or long double values as argument. Returns 1 if the number is normal, otherwise returns 0.Example Live Demo#include #include using namespace std; int main() { cout