C#

C# has a wide array of file operations. These operations include opening a file, reading or writing to a file. There can be instances wherein you want to work with files directly, in which case you would use the file operations available in C#. Some of the basic file operations are mentioned below. Reading –…

Accessing Data from a database is one of the important aspects of any programming language. It is an absolute necessity for any programming language to have the ability to work with databases. C# is no different. It can work with different types of databases. It can work with the most common databases such as Oracle…

So far we have seen how to work with C# to create console based applications. But in a real-life scenario team normally use Visual Studio and C# to create either Windows Forms or Web-based applications. A windows form application is an application, which is designed to run on a computer. It will not run on…

What is Hashtable in C#? A hash table is a special collection that is used to store key-value items. So instead of storing just one value like the stack, array list and queue, the hash table stores 2 values. These 2 values form an element of the hash table. Below are some example of how…

What is Queue in C#? The Queue is a special case collection which represents a first in first out concept. Imagine a queue of people waiting for the bus. Normally, the first person who enters the queue will be the first person to enter the bus. Similarly, the last person to enter the queue will…

What is Stack in C#? The stack is a special case collection which represents a last in first out (LIFO) concept. To first understand LIFO, let’s take an example. Imagine a stack of books with each book kept on top of each other. The concept of last in first out in the case of books…

What is ArrayList in C#? The ArrayList collection is similar to the Arrays data type in C#. The biggest difference is the dynamic nature of the array list collection. For arrays, you need to define the number of elements that the array can hold at the time of array declaration. But in the case of…

What is Abstract Class in C#? Abstract Class can never be instantiated and is marked by the keyword abstract. An abstract class contains zero or more abstract methods in it. Abstract class acts as a base class and is designed to be inherited by subclasses that either implement or either override its method. Let’s learn…