Char type and Unicode behavior in C Sharp (C#) - Mini Project: Build & Apply

Char type and Unicode behavior

📖 Scenario: Imagine you are working with characters in a program that needs to handle letters and symbols from different languages and emojis. You want to understand how the char type in C# works with Unicode characters.

🎯 Goal: You will create a small program that stores characters using the char type, checks their Unicode values, and prints them out to see how C# handles these characters.

📋 What You'll Learn

Create char variables with specific Unicode characters

Use an int variable to store the Unicode code point of a char

Print the characters and their Unicode values

💡 Why This Matters

🌍 Real World

Handling characters from different languages and symbols is important in apps that support international users or emojis.

💼 Career

Understanding how characters and Unicode work helps you build software that can display and process text correctly worldwide.

1

Create char variables with Unicode characters

Create three char variables called letterA, symbolHeart, and emojiSmiley with the values 'A', '\u2665' (heart symbol), and '\u263A' (smiley face) respectively.

C Sharp (C#)

# Your code here

Need a hint?

Use single quotes for char values and Unicode escape sequences like \u2665 for special symbols.

2

Store Unicode code points in int variables

Create three int variables called codeA, codeHeart, and codeSmiley. Assign each the Unicode code point of letterA, symbolHeart, and emojiSmiley respectively by casting the char variables to int.

C Sharp (C#)

char letterA = 'A';
char symbolHeart = '\u2665';
char emojiSmiley = '\u263A';
// Your code here

Need a hint?

Use (int) before the char variable to get its Unicode number.

3

Print characters and their Unicode values

Use Console.WriteLine to print each character and its Unicode code point in the format: Character: [char], Unicode: [int]. Print for letterA and codeA, then symbolHeart and codeHeart, and finally emojiSmiley and codeSmiley.

C Sharp (C#)

char letterA = 'A';
char symbolHeart = '\u2665';
char emojiSmiley = '\u263A';

int codeA = (int)letterA;
int codeHeart = (int)symbolHeart;
int codeSmiley = (int)emojiSmiley;
// Your code here

Need a hint?

Use Console.WriteLine with $"...{variable}..." to print variables inside strings.

4

Run the program and observe the output

Run the program to see the printed characters and their Unicode code points. The output should show each character followed by its Unicode number.

C Sharp (C#)

char letterA = 'A';
char symbolHeart = '\u2665';
char emojiSmiley = '\u263A';

int codeA = (int)letterA;
int codeHeart = (int)symbolHeart;
int codeSmiley = (int)emojiSmiley;

Console.WriteLine($"Character: {letterA}, Unicode: {codeA}");
Console.WriteLine($"Character: {symbolHeart}, Unicode: {codeHeart}");
Console.WriteLine($"Character: {emojiSmiley}, Unicode: {codeSmiley}");
// Run the program

Need a hint?

Check the console output carefully to see the characters and their Unicode numbers.