Boolean type behavior in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a Boolean variable with the value true.

C Sharp (C#)

bool isActive = [1];

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

Atrue

BTrue

C1

D"true"

Attempts:

3 left

💡 Hint

Common Mistakes

Using capitalized True instead of lowercase true.

Using numeric values like 1 instead of Boolean literals.

Using string "true" instead of Boolean literal.

In C#, the Boolean literal for true is true in lowercase.

2fill in blank

medium

Complete the code to check if the Boolean variable is false.

C Sharp (C#)

if (isEnabled == [1]) {
    Console.WriteLine("Disabled");
}

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

A0

Bfalse

CFalse

DTrue

Attempts:

3 left

💡 Hint

Common Mistakes

Using capitalized False instead of lowercase false.

Using numeric 0 instead of Boolean literal.

Using True instead of false.

The Boolean literal for false in C# is false in lowercase.

3fill in blank

hard

Fix the error in the code to correctly assign a Boolean value.

C Sharp (C#)

bool isReady = [1];

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

A"true"

BTrue

Ctrue

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using string "true" instead of Boolean literal.

Using capitalized True which is invalid in C#.

Using numeric 1 instead of Boolean literal.

Boolean values must be assigned using lowercase true or false without quotes.

4fill in blank

hard

Fill both blanks to create a Boolean expression that checks if x is greater than 10.

C Sharp (C#)

bool result = (x [1] 10) [2] true;

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

A>

B==

C<

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using < instead of > for greater than.

Using != instead of == for equality check.

Omitting the comparison to true.

The expression x > 10 == true checks if x is greater than 10.

5fill in blank

hard

Fill all three blanks to create a Boolean expression that checks if y is less than or equal to 5 and isActive is true.

C Sharp (C#)

bool check = (y [1] 5) [2] (isActive [3] true);

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

A<=

B&&

C==

D||

Attempts:

3 left

💡 Hint

Common Mistakes

Using < instead of <= for less than or equal.

Using || instead of && for logical AND.

Omitting == when comparing Boolean values.

The expression (y <= 5) && (isActive == true) checks both conditions correctly.