Tag: tutorials

Lock keyword in C#

AbundantCode 3 weeks ago in C# 0

Want to get the mutual exclusion lock for a given object or a block of statement? If yes, you can use the lock keyword in C# which marks the start of the critical section. The lock keyword may be useful especially when you are using threading in your application. It ensures that only one thread can enter and use the critical section. If another thread…

ElasticSearch – How to Interact with ElasticSearch using JSON over HTTP ?

AbundantCode 3 weeks ago in Elastic Search 0

Problem Statement You need to communicate with ElasticSearch to perform the search or the CRUD operations. Solution You can interact with ElasticSearch using the RESTful API over port 9200. Additionally , ElasticSearch has the official clients for various programming languages like .NET , Java , Ruby etc. The format of the request of ElasticSearch is as specified below. <VERB> <PROTOCOL> ://<HOST>/<PATH>?<QUERYSTRING> Additionally , it can…

F# Program to display "Hello, World!"

AbundantCode 3 weeks ago in F# 0

Problem Write a program in F# to display “Hello, World!” on the screen. F# Program to display “Hello, World!” in Console Window. This is a simple F# program that displays “Hello, World!” on the console window. Output Hello, World!

How to add Items to ListBox control in Xaml ?

AbundantCode 3 weeks ago in XAML 0

You can add the Items to a List Box control in Xaml using the Items property . The Items property is an ItemCollection which implements IList. How to add Items to ListBox control in Xaml ? Below is a sample code snippet demonstrating the adding of the Items to ListBox in Xaml of a Windows 10 UWP App. The above showed how to add items…

How to read the complete content of the Text File in C#?

AbundantCode 3 weeks ago in C# 0

Here’s an easy way to read the complete content of the text file in c# with just one line of code. This is achieved using the System.IO.File.ReadAllText function. Below is a sample code snippet demonstrating how to read the complete content of the Text File in C#? The test1.txt contains the file which needs to be displayed. The test1.txt contains the text “Welcome to Abundantcode.com”….

Java – How to Convert Numbers to Objects and vice versa ?

AbundantCode 3 weeks ago in Java 0

Problem Statement You need convert numbers to objects and vice versa in your Java program. Solution There are times when you need to pass an object for a function where you have a numeric values. To convert numbers to objects and vice versa , you can use the corresponsing wrapper classes. For example , if you want to convert an int to Integer object or…

C Program to display Inverted half-pyramid using numbers

AbundantCode 3 weeks ago in C 0

Problem Write a program in C to print Inverted half-pyramid using numbers as shown below.The program should take the number of rows as input. 1 2 3 4 1 2 3 1 2 1 How to create and display Inverted half-pyramid pattern in C using numbers ? Output Abundantcode.com Coding samples Enter number of rows: 4 1 2 3 4 1 2 3          1 2           …

C++ Program to add two integers

AbundantCode 3 weeks ago in C++ 0

Problem Write a program in C++ to add two integers and display the result on the screen. C++ Program to add two integers Output Enter first number : 8                                                                                                                                                            Enter second number : 2                                                                                                                                                                  8 + 2 = 10

Java – How to round floating point number to integer ?

AbundantCode 3 weeks ago in Java 0

Problem Statement You need to round the floating-point numbers to integers in Java. Solution When you cast a floating value to integer in Java , the value gets truncated. For example , the value 7.8989 when casted to integer will become 7. In order to round he floating-point numbers correctly , you can use the Math.round() method. The Math.round method has a 2 overloaded forms….

How to Combine URL in C#?

AbundantCode 3 weeks ago in C# 1

The .NET Framework includes the Path.Combine feature which can be used to combine the strings into a path. How about having the same functionality to combine URL? How to Combine URL in C#? This is where the Uri class comes handy. The Uri class includes the constructor which can be used to combine URL. For example, if I need to combine “http://www.abundantcode.com” and “blogs/article1.html”, I…

How to mark a class as Obsolete or Deprecated in C# ?

AbundantCode 3 weeks ago in C# 0

Sometimes , you may want to mark a class or method as deprecated so that the you dont want to use the class any more and also want to let know , other developers that the class is obsolete . You can do that by using the Obsolete attribute as shown below . The Obsolete attribute also includes 2nd parameter (boolean) . When this valus…

How to Sort Array Elements in Descending Order in C#?

AbundantCode 3 weeks ago in C# 0

The Array class includes static method called Sort which can be used to sort the array in ascending order. After using the Sort method, one can use the Reverse method to sort the array back to descending order. How to Sort Array Elements in Descending Order in C#? Below is a sample code snippet demonstrating sorting of array elements in Descending order in C#.

Python Program to display "Hello, World!"

AbundantCode 3 weeks ago in Python 0

Problem Write a program in Python to display “Hello, World!” on the screen. Python Program to display “Hello, World!” in Console Window. This is a simple Python program that displays “Hello, World!” on the console window. Output Hello, World! The above Python program uses the print() function to display the Hello,World! string to the screen. Note that the strings are enclosed inside the single quotes…

Sending SMS from a Windows Phone 8.1 App

AbundantCode 3 weeks ago in C# 1

Do you want to send SMS from your Windows Phone 8.1 App ? . You can use the ChatMessage class in Windows Runtime to do it. Sending SMS from a Windows Phone 8.1 App Here’s a code that demonstrates how to send SMS from a Windows Phone 8.1 App .