In the abstract, rest assured that a problem was solved.

C# (C Sharp) One Page

C# operates. This one page presents points to bear in mind when entering a technical exam.

Concepts

Generic Programming: Write code that handles a collection "in the general" and C# handles the specifics for each different type of collection.

Functional Programming: Specify what you want to accomplish in a task, but not how to accomplish it.

Collectively, .NET's predefined namespaces are known as the .NET Framework Class Library

A class name is an identifier.

String Interpolation: Enables you to insert values in string literals to create formatted strings. An interpolated string must begin with a $ (dollar sign).

C# is an extensible programming language becasuse Each class you create becomes a new type you can use to create objects.

Member access operator (.)

Expression body definition:

    member => expression;

Another form for this same token is the lambda expression lambda operator, where it separates the input parameters on the left side from the lambda body on the right side.

Boilerplate

    using System;

    class SquareRootTest
    using System;

    class SquareRootTest {
        static void Main(string[] args) {
            var continueLoop = true;

            do {
                try {
                    continueLoop = false;
                } catch (Exception specificException) {
                    Console.WriteLine("\n" + specificException.Message);
                }
            } while (continueLoop);
        }

        public static double SquareRoot(double value) {
            if (value < 0) {
                throw new Exception("Unpermitted action performed.");
            } else {
                return Math.Sqrt(value); // compute square root
            }
        }
    }

Methods

    string s = "You win some. You lose some.";

    string[] subs = s.Split(' ');

    foreach (var sub in subs)
    {
        Console.WriteLine($"Substring: {sub}");
    }

Loops

    private decimal TotalFees()
    {
        decimal total = 0;

        foreach (Record rec in recordsList)
        {
            total += rec.CourseFee;
        }

        return total;
    }

Unicode Console Characters

My favourite part!

    DateTime currentTime = DateTime.Now;
    Console.OutputEncoding = System.Text.Encoding.UTF8;