Logical patterns (and, or, not) 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||

Bor

C|

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using || instead of &&

Using single & which is a bitwise operator

The && operator checks if both conditions are true.

2fill in blank

medium

Complete the code to check if either 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&&

Dand

Attempts:

3 left

💡 Hint

Common Mistakes

Using && instead of ||

Using single & which is a bitwise operator

The || operator checks if at least one 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!

Bnot

C~

Dnegate

Attempts:

3 left

💡 Hint

Common Mistakes

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

Using bitwise complement operator ~ which is for integers

The ! operator negates a boolean value in C#.

4fill in blank

hard

Fill all three blanks to check if number is between 10 and 20 inclusive.

C Sharp (C#)

bool inRange = (num [1] 10) [2] (num [3] 20);

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

A>=

B&&

C<=

D||

Attempts:

3 left

💡 Hint

Common Mistakes

Using || instead of && which allows numbers outside the range

Using > or < instead of >= or <=

The code checks if num is greater than or equal to 10 and less than or equal to 20 using &&.

5fill in blank

hard

Fill all three blanks to check if a character is a vowel (a, e, i, o, u).

C Sharp (C#)

bool isVowel = (ch == 'a') [1] (ch == 'e') [2] (ch == 'i') [3] (ch == 'o') || (ch == 'u');

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

A||

B&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using && which requires all conditions to be true (impossible here)

Mixing && and || operators incorrectly

Use || to check if ch equals any vowel character.