Relational patterns in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if the number is greater than 10 using a relational pattern.

C Sharp (C#)

if (number is > [1]) {
    Console.WriteLine("Number is greater than 10");
}

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

A5

B10

C15

D20

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong number to compare.

Using a less than operator instead of greater than.

The relational pattern is > 10 checks if number is greater than 10.

2fill in blank

medium

Complete the code to check if the age is less than or equal to 18 using a relational pattern.

C Sharp (C#)

if (age is [1] 18) {
    Console.WriteLine("Minor age");
}

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

A<=

B>

C<

D>=

Attempts:

3 left

💡 Hint

Common Mistakes

Using greater than or less than without equal.

Swapping the operator direction.

The pattern is <= 18 checks if age is less than or equal to 18.

3fill in blank

hard

Fix the error in the relational pattern to check if temperature is not equal to 0.

C Sharp (C#)

if (temperature is not [1]) {
    Console.WriteLine("Temperature is not zero");
}

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

A==

B<

C>

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' inside 'is not' which is incorrect.

Using less than or greater than operators.

The correct pattern to check 'not equal' is is not 0.

4fill in blank

hard

Fill both blanks to check if score is between 50 and 100 inclusive using relational patterns.

C Sharp (C#)

if (score is >= [1] and <= [2]) {
    Console.WriteLine("Score is in the passing range");
}

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

A50

B40

C100

D110

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong boundary numbers.

Swapping the lower and upper bounds.

The pattern checks if score is greater than or equal to 50 and less than or equal to 100.

5fill in blank

hard

Fill all three blanks to create a pattern that checks if value is greater than 0, less than 10, and not equal to 5.

C Sharp (C#)

if (value is > [1] and < [2] and not [3]) {
    Console.WriteLine("Value is valid");
}

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

A0

B10

Cis

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'is' instead of 5 for not equal.

Mixing up the boundary numbers.

The pattern checks if value is greater than 0, less than 10, and not equal to 5 using relational patterns.