Зміст курсу

C# Basics

1. Getting Started

Why C#?C# Syntax Displaying Output Challenge: Outputting a Triangle Comments Challenge: Comments Variables Identifiers Challenge: Variable Declaration Basic Operators & Expressions Challenge: Operators

2. Dealing with Data Types

Integer Data Types Declaring Explicitly Typed Variables Floating-Point and Double Booleans Character String Strings Challenge Basic String Formatting String Formatting Practice Declaring Constants Basic Type Casting Type Casting Practice Basic Type Conversion Basic Coding Practice

3. Control Structures

Comparison Operators Logical Operators Operators Challenge Order of Operations if statement if-condition Challenge else Keyword else Keyword Practice if-else Chain Task (if, else-if, else)switch Statement Practicing Switch

4. Loops

For Loop Practicing For Loop While Loop Do-While Loop Practicing Do-While Loop break statement continue statement Practicing break and continue

5. Arrays

What are Arrays?Practicing Array Declaration Indexing Indexing Practice Multi-Dimensional Arrays Practicing Multi-Dimensional Arrays Looping through Arrays Array Loops Challenge

6. Methods

What are Methods?Creating and Calling Methods Methods Creation Practice Method Parameters Practicing Method with Parameters Method Return Values Practicing Return Values Local & Global Scopes Practicing Scopes What's Next?

C# Basics

Indexing Practice

Find the mean between the largest and the smallest element of the numbers array.

Mean, also called average, represents the central number between two or more than two numbers. For-example the mean value between 1 and 5 is 3.

The formula for finding mean between two numbers sum of the two numbers divided by 2: (num1 + num2) / 2

Use indexing to access the smallest and the largest elements of the array.

main.cs

1. The sum variable should contain the sum of the two values;
2. Figure out the index of the smallest and the largest elements of the numbers array and access those elements via indexing (numbers[index]), then store their sum in the sum variable;
3. The mean will be the the sum divided by 2.


using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int[] numbers = { 5, 9, 27, 17, 19, 21, 0, -7, 10 };

            int sum = numbers[2] + numbers[7];
            int mean = sum / 2;

            Console.WriteLine(mean);
        }
    }
}

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Секція 5. Розділ 4

Зміст курсу

C# Basics

1. Getting Started

2. Dealing with Data Types

3. Control Structures

4. Loops

For Loop Practicing For Loop While Loop Do-While Loop Practicing Do-While Loop break statement continue statement Practicing break and continue

5. Arrays

What are Arrays?Practicing Array Declaration Indexing Indexing Practice Multi-Dimensional Arrays Practicing Multi-Dimensional Arrays Looping through Arrays Array Loops Challenge

6. Methods

C# Basics

Indexing Practice

Find the mean between the largest and the smallest element of the numbers array.

Mean, also called average, represents the central number between two or more than two numbers. For-example the mean value between 1 and 5 is 3.

The formula for finding mean between two numbers sum of the two numbers divided by 2: (num1 + num2) / 2

Use indexing to access the smallest and the largest elements of the array.

main.cs


using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int[] numbers = { 5, 9, 27, 17, 19, 21, 0, -7, 10 };

            int sum = numbers[2] + numbers[7];
            int mean = sum / 2;

            Console.WriteLine(mean);
        }
    }
}

Все було зрозуміло?

Секція 5. Розділ 4