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 ... Read More

This example demonstrates about How to use a Linked hash set 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    android:orientation="vertical">   ... Read More

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 ... Read More

An expression tree is basically a binary which is used to represent expressions. In expression tree, internal nodes correspond to operators and each leaf node corresponds to an operand. Here is a C++ Program to implement the Expression Tree Algorithm which takes the postfix expression as an input and generates ... Read More

To find the string which has a length greater than a particular value in MongoDB, use the $where operator. The syntax is as follows −db.yourCollectionName.find({$where:'this.yourStringFieldName.length > yourIntegerValue'}).pretty();To understand the above concept, let us create a collection with the document. The query to create a collection with a document is as ... Read More

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 ... Read More

Here we will see how to initialize the private static member variables initialization in C++. We can put static members (Functions or Variables) in C++ classes. For the static variables, we have to initialize them after defining the class.To initialize we have to use the class name then scope resolution ... Read More

The counting() method of the Java 8 Collectors class returns a Collector accepting elements of type T that counts the number of input elements.The syntax is as follows −static Collector counting()Here, the parameter −T − type of input elementsLong − This class value of the primitive type long in ... Read More

In this section we will see what is the conversion constructor or converting constructor in C++ class. A constructor is a special type of function of class. It has some unique property like, its name will be same as class name, it will not return any value etc. The constructors ... Read More

You can use positional operator $ for this. To understand the above concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.incrementValueInNestedArrayDemo.insertOne(    ... {"UniqueId":1,       ... "StudentDetails":       ... [     ... Read More