String interpolation in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the variable name using string interpolation.

C Sharp (C#)

string name = "Alice";
Console.WriteLine($"Hello, [1]!");

Drag options to blanks, or click blank then click option'

Aname.ToString()

B"name"

CName

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the variable name in quotes, which prints the word instead of the value.

Using incorrect casing for the variable name.

Using string interpolation, you place the variable name inside curly braces within the string prefixed by $. So, {name} inserts the value of the variable.

2fill in blank

medium

Complete the code to include the variable age in the output string using string interpolation.

C Sharp (C#)

int age = 30;
Console.WriteLine($"You are [1] years old.");

Drag options to blanks, or click blank then click option'

Aage

B"age"

CAge

Dage.ToString()

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around the variable name, which prints the text instead of the value.

Using incorrect capitalization.

Inside the interpolated string, use {age} to insert the integer variable's value directly.

3fill in blank

hard

Fix the error in the string interpolation to correctly print the full name.

C Sharp (C#)

string firstName = "John";
string lastName = "Doe";
Console.WriteLine($"Full name: [1] {{lastName}}");

Drag options to blanks, or click blank then click option'

AfirstName

B"firstName"

CFirstName

DfirstName.ToString()

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the variable name in quotes inside the interpolation.

Using incorrect capitalization of the variable.

Inside the interpolated string, use {firstName} to insert the variable's value. Quotes would print the text literally.

4fill in blank

hard

Fill both blanks to create a greeting with the person's name and age using string interpolation.

C Sharp (C#)

string name = "Emma";
int age = 25;
Console.WriteLine($"Hello, [1]! You are [2] years old.");

Drag options to blanks, or click blank then click option'

Aname

Bage

C"age"

D"name"

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around variable names inside the interpolation.

Mixing up the variables or using incorrect casing.

Use {name} and {age} inside the interpolated string to insert the variable values directly.

5fill in blank

hard

Fill all three blanks to print a formatted message with name, age, and city using string interpolation.

C Sharp (C#)

string name = "Liam";
int age = 40;
string city = "Paris";
Console.WriteLine($"Name: [1], Age: [2], City: [3]");

Drag options to blanks, or click blank then click option'

Aname

Bage

Ccity

D"city"

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around variable names, which prints the text instead of values.

Incorrect capitalization of variable names.

Inside the interpolated string, use {name}, {age}, and {city} to insert the variable values directly without quotes.