Format specifiers for numbers and dates in C Sharp (C#) - Mini Project: Build & Apply

Format specifiers for numbers and dates

📖 Scenario: You are creating a simple program to display prices and dates in a clear and friendly way for a small shop.

🎯 Goal: Learn how to use format specifiers in C# to show numbers as currency and dates in a readable format.

📋 What You'll Learn

Create variables for price and date with exact values

Add a format specifier variable for currency

Format the price using the currency format specifier

Format the date using a date format specifier

Print the formatted price and date

💡 Why This Matters

🌍 Real World

Formatting prices and dates is common in shopping apps, invoices, and reports to make information clear and professional.

💼 Career

Knowing how to format numbers and dates is essential for software developers working on user interfaces, financial software, and data presentation.

1

Create price and date variables

Create a decimal variable called price and set it to 1234.56m. Create a DateTime variable called saleDate and set it to new DateTime(2024, 6, 15).

C Sharp (C#)

# Create a decimal variable called price and set it to 1234.56m
# Create a DateTime variable called saleDate and set it to new DateTime(2024, 6, 15)

Need a hint?

Use decimal for money values and DateTime for dates.

2

Add currency format specifier

Create a string variable called currencyFormat and set it to "C" to format numbers as currency.

C Sharp (C#)

decimal price = 1234.56m;
DateTime saleDate = new DateTime(2024, 6, 15);
# Create a string variable called currencyFormat and set it to "C"

Need a hint?

The "C" format specifier shows numbers as currency.

3

Format price and date

Create a string variable called formattedPrice and set it to price.ToString(currencyFormat). Create a string variable called formattedDate and set it to saleDate.ToString("MMMM dd, yyyy") to show the full month name, day, and year.

C Sharp (C#)

decimal price = 1234.56m;
DateTime saleDate = new DateTime(2024, 6, 15);
string currencyFormat = "C";
# Format price using currencyFormat and assign to formattedPrice
# Format saleDate as "MMMM dd, yyyy" and assign to formattedDate

Need a hint?

Use ToString with format specifiers to convert numbers and dates to strings.

4

Print formatted price and date

Write two Console.WriteLine statements to print formattedPrice and formattedDate on separate lines.

C Sharp (C#)

decimal price = 1234.56m;
DateTime saleDate = new DateTime(2024, 6, 15);
string currencyFormat = "C";
string formattedPrice = price.ToString(currencyFormat);
string formattedDate = saleDate.ToString("MMMM dd, yyyy");
# Print formattedPrice
# Print formattedDate

Need a hint?

Use Console.WriteLine to show the results on the screen.