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

Method Return Values

In the last two chapters, we learned how to pass data into the functions but now we will learn how to retrieve data from the method back to the place where it was executed.

The process of retrieving data from methods is also called returning data and the data or value which is returned is called the return value.

The syntax for creating a method with a return value is the following:

main.cs

The valueToReturn represents a variable, value, or expression which must be of the same type as the returnDatatype. Following is the correct example:

main.cs

If the wrong type of data is returned, it will show an error:

main.cs

The value which is returned from the sumOfThree method can be stored into a variable:

main.cs

We can also directly output the return value using Console.WriteLine:

main.cs

We can also directly write expressions as return values. In that case, the expression is first evaluated and then the resulting value is returned. Following are some examples:

Product of Three Integers:

main.cs

Average:

main.cs

Все було зрозуміло?

Секція 6. Розділ 6

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

Method Return Values

In the last two chapters, we learned how to pass data into the functions but now we will learn how to retrieve data from the method back to the place where it was executed.

The process of retrieving data from methods is also called returning data and the data or value which is returned is called the return value.

The syntax for creating a method with a return value is the following:

main.cs

The valueToReturn represents a variable, value, or expression which must be of the same type as the returnDatatype. Following is the correct example:

main.cs

If the wrong type of data is returned, it will show an error:

main.cs

The value which is returned from the sumOfThree method can be stored into a variable:

main.cs

We can also directly output the return value using Console.WriteLine:

main.cs

We can also directly write expressions as return values. In that case, the expression is first evaluated and then the resulting value is returned. Following are some examples:

Product of Three Integers:

main.cs

Average:

main.cs

Все було зрозуміло?

Секція 6. Розділ 6