Logical operators in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if both conditions are true.

C Sharp (C#)

bool result = (a > 5) [1] (b < 10);

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

A^

B||

C|

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using || instead of && causes the condition to be true if either side is true.

The && operator checks if both conditions are true.

2fill in blank

medium

Complete the code to check if at least one condition is true.

C Sharp (C#)

bool result = (x == 0) [1] (y == 1);

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

A||

B^

C&

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using && instead of || causes the condition to require both sides true.

The || operator returns true if either condition is true.

3fill in blank

hard

Fix the error in the code to negate the condition.

C Sharp (C#)

bool isFalse = [1](flag);

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

A!

Bflag

C!!

Dnot

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'not' keyword which is not valid in C#.

Using double exclamation marks (!!) which is invalid syntax.

The ! operator negates a boolean value in C#.

4fill in blank

hard

Fill both blanks to create a condition that is true only if a is true and b is false.

C Sharp (C#)

bool result = (a [1] true) [2] (b [3] false);

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

A==

B&&

C||

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using || instead of && changes the logic to 'or' instead of 'and'.

Using != instead of == for comparisons causes wrong results.

Use == to compare values, && to combine conditions with 'and', and != to check inequality.

5fill in blank

hard

Fill all three blanks to create a condition that is true if x is greater than 10 or y is less than 5 and z is not equal to 0.

C Sharp (C#)

bool check = (x [1] 10) [2] (y [3] 5) && (z != 0);

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

A>

B<

D||

Attempts:

3 left

💡 Hint

Common Mistakes

Using && instead of || changes the logic to require both conditions true.

Using >= or <= instead of > or < changes the condition meaning.

Use > to check if x is greater than 10, || for 'or', and < to check if y is less than 5.