It is always good practice to insert comments into your code so that you (as well as others) can understand what your code is doing. You can place a single line comment after a line of code, or on a line of it’s own using the “//” notation. If you […]

Here is a quick switch statement demo: [csharp] using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SwitchStatementDemo { class Program { static void Main(string[] args) { Console.Write("enter a number: "); //the parse converts the input into an integer. int input = int.Parse(Console.ReadLine()); switch (input) { case 1: […]

Sometimes a method will ask for an input parameter, but that input parameter is optional. In these situation you can still trigger the method, without passing an input parameter, and instead pass in a “null” object in it’s place: [csharp] using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; […]

When programming it is essential to organize and structure your code, otherwise it will become unwieldy to work with. c# offer a number of ways to structure and and organize our code using: methods classes namespaces Methods are used for storing blocks of codes and each method is designed to […]

A enum constant is a special kind of variable that can only take a set number of values, e.g.: [csharp] using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApp { class EnumConstantDemo { // notice that you have to place this outside the method, othewise the method […]

Sometimes you might have a block of “dangerous code” in your program. These are code that could fail. When these blocks of “dangerous codes” fail, it will stop the program straight, and won’t attempt to carry on any further, and instead it will just output an error message. However sometimes […]

Whenever you create an object (aka an instance of a class), you often want to store data within that object. You can think of this info as the object’s metadata. For example, lets say want to have a class called “Employee”, and you want to use that class to create […]

If you declare (and initialize) a variable within an if-else statement, then that variable’s value will only exist within that if-else statement. However if you want to initialize (i.e. assign a value to) the variable within the if-else statement, but want to make the variable accessible outside the if-else scope, […]

We previously came across the concept of inheritance, which is where a child class (implicitly) inherits the properties and methods from it’s parent class. However what if you don’t want a class to inherit methods and properties, but we do want class to have certain members (properties and methods) with […]

Previously we looked at how to store data in an object using fields. Fields are easy to use, but only if you set them to public. Having public fields is bad practice. To overcome this we can set the fields to private and then write (public) methods within the class […]