A. Stored procedures are sub routines, segment of SQL statements which are stored in SQL catalog. All the applications that can access Relational databases (Java, Python, PHP etc.), can access stored procedures.Stored procedures contain IN and OUT parameters or both. They may return result sets in case you use SELECT ... Read More

Before getting into an example, we should know what CopyOnWriteArraySet is. It is a thread-safe variant of ArrayList and operations add, set, and so on by making a fresh copy of the underlying array.This example demonstrates about How to use retainAll() in android CopyOnWriteArraySetStep 1 − Create a new project ... Read More

This example demonstrate about How to get current Wi-Fi BSSID 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. ... Read More

Here we will see how to extract all integers from strings in C++. We can put a string where numbers and no-numbers are present. We will extract all numeric values from it.To solve this problem, we will use the stringstream class in C++. We will cut the string word by ... Read More

Multimap is similar to map with an exception that multiple elements can have same keys. The key value and mapped value pair has to be unique in multimap.Function is used here -mm::find() – Returns an iterator to the element with key value ‘b’ in the multimap if found, else returns ... Read More

A multiset is a type of associative container in which has multiple elements can have same values.Functions and descriptions:Functions are used here:    ms.size() = Returns the size of multiset.    ms.insert) = It is used to insert elements to the multiset.    ms.erase() = Removes the value from the ... Read More

Like procedures, you can also create function in a database and store them.SyntaxFollowing is the syntax of creating a function in a(MySQL) database:CREATE FUNCTION Function_Name(input_arguments) RETURNS output_parameter BEGIN declare variables; statements . . . . . . . . . . ... Read More

Before getting into the example, we should know what LinkedBlockingDeque is. It is implemented by Collection interface and the AbstractQueue class. It provides optional boundaries based on linked nodes. It going to pass memory size to a constructor and helps to provide memory wastage in android.This example demonstrates about How ... Read More

Pair is a simple container which consists of two data object:‘first’ = The first element is referenced as ‘first’ ‘second’ = the second element and the order is fixed (first, second).Pair can be assigned, compared and copied. It is used to combine together two values which may be different in ... Read More

Before getting into the example, we should know what ConcurrentLinkedQueue is, it is an unbounded queue based on linked nodes. Multiple threads can access queue elements with safety. Elements travel based on queue strategy as FIFO and elements going to insert from a tail. It does not allow null values.This ... Read More