Understanding Common Logical Errors in Programming

What is the correct operator to use if you need to check if a number is less than or equal to 10?

• < 10

• > 10

• <= 10

• >= 10

Which method can help remember the correct comparison operator to use?

• Counting on fingers

• Using variable names

• Writing pseudocode

• Visualizing a crocodile mouth

What happens if you incorrectly use the assignment operator in a swap operation?

• Syntax error occurs

• One variable is overwritten

• Variables are correctly swapped

• Both variables retain their original values

How can you correctly swap the values of two variables, 'firstNum' and 'secondNum'?

• firstNum += secondNum; secondNum = firstNum - secondNum; firstNum -= secondNum;

• temp = firstNum; firstNum = secondNum; secondNum = temp;

• swap(firstNum, secondNum);

• firstNum = secondNum; secondNum = firstNum;

Which of the following is a valid method to prevent overwriting data when swapping variables?

• Direct assignment without a temporary variable

• Using a temporary variable for storage

• Renaming variables

• None of the above

What is a common mistake when using for loops in programming?

• Ignoring zero-based indexing

• Using while loops instead of for loops

• Using too many iterations

• Not using loops

How many iterations will occur in a loop structured as 'for x = 0 to 5'?

• 5

• 6

• 4

• 7

What is the correct way to accumulate a total in a loop?

• total = num

• total += num

• total = total + num

• total = total - num

What logical error is made if 'total = num' is used inside a loop meant to sum numbers?

• A syntax error is thrown

• The loop will not execute

• Each new number replaces the previous total

• The total will correctly accumulate

In a for loop, if you need exactly five iterations starting from zero, how should you structure the loop?

• for x = 1 to 6

• for x = 1 to 5

• for x = 0 to 5

• for x = 0 to 4