Real-life examples of Logical Operators in Programming

📚 Quick Study Guide

• 🍎 Logical operators are used to combine or modify conditions in programming.
• ➕ The three basic logical operators are AND, OR, and NOT.
• AND: Returns true only if both conditions are true.
• OR: Returns true if at least one condition is true.
• NOT: Returns the opposite of the condition. If true, returns false, and vice versa.
• 💡 Example in Python: (x > 5) and (y < 10)
• 💡 Example in JavaScript: (a == b) || (c != d)
• 🔑 Truth tables are useful for understanding how logical operators work.

  Operator	Input 1	Input 2	Output
  AND	True	True	True
  AND	True	False	False
  AND	False	True	False
  AND	False	False	False
  OR	True	True	True
  OR	True	False	True
  OR	False	True	True
  OR	False	False	False
  NOT	True		False
  NOT	False		True

🧪 Practice Quiz

1. What is the result of the expression (5 > 3) AND (10 < 20)?
   1. True
   2. False
   3. Error
   4. Null
2. Which logical operator returns True if at least one of the conditions is True?
   1. AND
   2. OR
   3. NOT
   4. XOR
3. What does the NOT operator do?
   1. Returns the absolute value
   2. Inverts the condition
   3. Multiplies the condition by -1
   4. Returns the original condition
4. In most programming languages, what symbol is used to represent the AND operator?
   1. ||
   2. &&
   3. !
   4. |&
5. What is the result of NOT (5 == 5)?
   1. True
   2. False
   3. Error
   4. 1
6. Consider the expression: (age > 18) OR (isStudent == True). When will this expression return True?
   1. Only when age is greater than 18
   2. Only when isStudent is True
   3. When age is greater than 18 or isStudent is True, or both
   4. Never
7. If x = 10 and y = 5, what is the result of (x > 5) AND (y < 3)?
   1. True
   2. False
   3. Error
   4. Null