This example demonstrate about How to save an Android Activity state using save instance stateStep 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.   ... Read More

A dynamic 2D array is basically an array of pointers to arrays. Here is a diagram of a 2D array with dimenation 3 x 4.AlgorithmBegin    Declare dimension of the array.    Dynamic allocate 2D array a[][] using new.    Fill the array with the elements.    Print the array. ... Read More

This example demonstrate about How to update RecyclerView Adapter DataStep 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 ... Read More

MongoDB is a cross-platform, document oriented database that provides, high performance, high availability, and easy scalability. MongoDB works on concept of collection and document.Before you start connecting MongoDB in you need to make sure that you have MongoDB JDBC driver. If not, download the jar from the path Download mongo.jar ... Read More

In this, we are going to see how differently we can display our text in a very unique way using python.So let suppose I want to display “Hello, Python” and out many ways I could display my text/string (“Hello, Python”) like:Input“Hello, Python”Output 1___ ___ .__ .__ / | \ ____ ... Read More

This example demonstrate about How to use GridLayoutManager in RecyclerViewStep 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.           ... Read More

Python XML parser parser provides one of the easiest ways to read and extract useful information from the XML file. In this short tutorial we are going to see how we can parse XML file, modify and create XML documents using python ElementTree XML API.Python ElementTree API is one of ... Read More

This example demonstrate about How to use LocalBroadcastManagerStep 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 ... Read More

This example demonstrate about How to use context in a fragmentStep 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.           ... Read More

In this we are going to see different ways of I/O methods for competitive programming in Python. In competitive programming it is important to read the input as fast as possible so as take advantage over others.Suppose you’re in a codeforces or similar online jude (like SPOJ) and you have ... Read More