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Articles by Nishtha Thakur
Page 33 of 40
How to remove object from array in MongoDB?
You can use $pull operator to remove the object from an array in MongoDB. To understand the concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.removeObjectFromArrayDemo.insertOne( ... { ... ... "StudentName": "John", ... "StudentAcademicProjectDetails": ... [{ ... "StudentProjectId": 101, ... "StudentProjectName": "Pig Dice Game" ... }, ... { ... "StudentProjectId": 110, ... "StudentProjectName": "Library Management System" ... ...
Read MoreGet the size of the LabelValue Tuple in Java
To get the size of the LabelValue tuple in Java, use the getSize() method. Let us first see what we need to work with JavaTuples. To work with LabelValue class in JavaTuples, you need to import the following package −import 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 JavaTuples −Steps − How to run JavaTuples program in EclipseThe following is an ...
Read MoreHow to detect iOS device UDID, Name, Version, Model by programmatically?
Device UDID stands for Unique device identifier. Every iOS Device has UDID which is a sequence of 40 letters and numbers that is guaranteed to be specific to your device.Device name is generally a name which will find in the device Setting→ General→ About.iOS Version is the version on which your current iPhone runs, latest iOS version in 12.2iOS Model describes whether the iOS device which user is using is an iPhone/iPad.Now will see how to detect UDID, Name, Version and Model programatically.Open Xcode → New Project and add the below code in ViewController’s viewDidLoad method.override func viewDidLoad() { ...
Read MoreHow to encrypt password and store in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to encrypt pass word and store in Android sqliteStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required ...
Read MoreInspect live objects in Python
Functions in this module provide usefule information about live objects such as modules, classes, methods, functions, code objects etc. These functions perform type checking, retrieve source code, inspect classes and functions, and examine the interpreter stack.getmembers()− This function returns all the members of an object in a list of name, value pairs sorted by name. If the optional predicate is supplied, only members for which the predicate returns a true value are included. getmodulename() −This function returns the name of the module named by the file path, without including the names of enclosing packagesWe shall be using following script for ...
Read MoreHow to get current country code from Network provider in android?
This example demonstrates about How to get the current country code from Network provider in android.Step 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. In the above code, we have taken a text view to show the current country code.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.Manifest; import android.content.pm.PackageManager; import android.location.Address; import android.location.Geocoder; import android.location.Location; import android.location.LocationManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; ...
Read MoreIterate through LabelValue Tuple in Java
To iterate through the LabelValue tuple value, use a simple for loop just like what we do in other collections. Let us first see what we need to work with JavaTuples. To work with LabelValue class in JavaTuples, you need to import the following package −import 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 JavaTuples −Steps − How to run JavaTuples ...
Read MoreHow to lock Screen Orientation programmatically in iOS?
You might come across a scenario where you need to show the UI in a specific orientation may be Landscape or Portrait.We will be seeing how to lock orientation programmatically using Swift in iOS.Open Xcode → New Project → ViewController.swift write the below code.// Set the shouldAutorotate to False override open var shouldAutorotate: Bool { return false } // Specify the orientation. override open var supportedInterfaceOrientations: UIInterfaceOrientationMask { return .portrait }
Read MoreHow to get current postal code from Network provider in android?
This example demonstrates about How to get the current postal code from Network provider in android.Step 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. In the above code, we have taken a text view to show postal code information.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.Manifest; import android.content.pm.PackageManager; import android.location.Address; import android.location.Geocoder; import android.location.Location; import android.location.LocationManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import ...
Read MoreForeach in C++ vs Java
In C++ and Java, there is another kind of loop, called the foreach loop. This is basically a modification of for loop. This loop is used to access the data from some container. This can access the elements of some array quickly without performing initialization. This loop is used to do something for each element of a container, not doing things n times.Now let us see how the foreach loop is used in C++ and Java.Example#include using namespace std; int main() { int arr[] = { 11, 22, 33, 44, 55, 66, 77, 88, 99 }; for (int a : arr) //foreach loop cout
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