This example demonstrate about Custom Notification Sounds for Android Oreo and BeyondStep 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 ... Read More

This is a C++ program in which we generate a undirected random graph for the given edges ‘e’. This algorithm basically implements on a big network and time complexity of this algorithm is O(log(n)).AlgorithmBegin    Function GenerateRandomGraphs(), has ‘e’ as the number edges in the argument list.    Initialize i ... Read More

Here we will see how the copy constructors are implemented in C++. Before discussing that we should know what is the copy constructor.The copy constructor is a constructor which creates an object by initializing it with an object of the same class, which has been created previously. The copy constructor ... Read More

You can use $eq as well as $ne operator for boolean values. Let us first create a collection with documents −> db.booleanQueryDemo.insertOne({"UserName":"John", "UserAge":23, "isMarried":true}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cc815c08f9e6ff3eb0ce44a") } > db.booleanQueryDemo.insertOne({"UserName":"Chris", "UserAge":21, "isMarried":false}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cc815d08f9e6ff3eb0ce44b") } > db.booleanQueryDemo.insertOne({"UserName":"Robert", ... Read More

For this, create a vertical progress bar −JProgressBar progressBar = new JProgressBar(JProgressBar.VERTICAL); progressBar.setEnabled(true);Also, set the bounds −progressBar.setBounds(70, 50, 120, 30);The following is an example to create vertical progress bar occupying the entire frame −Examplepackage my; import java.awt.BorderLayout; import java.awt.Color; import javax.swing.JFrame; import javax.swing.JProgressBar; public class SwingDemo {    public static ... Read More

To merge, use $setUnion operator. Let us first create a collection with documents −> db.mergeTwoArrayFieldDemo.insertOne({"NaturalNumbers":[1, 2, 3, 8, 10, 20, 30], "WholeNumbers":[0, 1, 2, 63, 78, 20, 45]}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cd68e4057806ebf1256f11d") }Following is the query to display all documents from a collection with the ... Read More

This example demonstrate about Start an Activity from a Notification in AndroidStep 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 ... Read More

Text modeBinary modeIn text mode various character translations are performed i.e;“\r+\f” is converted into “”In binary mode, such translations are not performed.To write in the files:ofstream ofs (“file.txt”);Orofstream ofs;ofs.open(“file.txt”);to write in the files: ofstream ofs(“file.txt”, ios::binary);orofstream ofs;ofs.open(“file.txt”, ios::binary);To add text at the end of the file:Ofstream ofs(“file.txt”, ios::app);orofstream ofs;ofs.open(“file.txt”, ios::app);To add text ... Read More

You can use $set operator for this. Let us first create a collection with documents −> db.pullAllElementDemo.insertOne( ...    { ...       "StudentId":101, ...       "StudentDetails" : [ ...          { ... ...             "StudentName": "Carol", ...   ... Read More

At first, set multiple number input fields −JTextField text1 = new JTextField(10); JTextField text2 = new JTextField(10); JTextField text3 = new JTextField(10); JTextField text4 = new JTextField(10); JTextField text5 = new JTextField(10); JTextField text6 = new JTextField(10); JTextField text7 = new JTextField(10); JTextField text8 = new JTextField(10); panel.add(text1); panel.add(text2); panel.add(text3); ... Read More