True or False - The following code is valid:

numbers = [75, 20, 35, 42]
for number in range( 0, len( numbers ) ):
print( numbers[number] )

Question

True or False - The following code is valid:

numbers = [75, 20, 35, 42]
for number in range( 0, len( numbers ) ):
    print( numbers[number] )

BlackTom AI · Accepted Answer

Consider the code snippet step by step to evaluate its validity.
First, an integer list named numbers is defined: [75, 20, 35, 42].
Next, the for loop uses range(0, len(numbers)) which produces a sequence of indices from 0 up to but not including len(numbers). Since len(numbers) is 4, range(0, 4) yields 0, 1, 2, and 3.
Inside the loop, numbers[number] performs indexing to retrieve the element at the current index. Accessing numbers[0] is 75, numbers[1] is 20, numbers[2] is 35, and numbers[3] is 42.
Then print(numbers[number]) outputs each of these values on its own line, in order. No syntax or runtime errors appear: the length-based range aligns with valid indices, and list indexing with a valid integer index is a standard operation in Python.
Therefore, the code is syntactically and semantically valid in Python (assuming Python 3, where range returns an iterable and list indexing remains the same).
If one were to consider edge cases, potential concerns could include negative indexing or fear of index out of range, but here the indices produced by range match the list length, avoiding such issues.

Combined CS-126 sections - (1257-4967) COMPUTER SCIENCE I (Fall 2025 M16) 002 Module 2 - Midterm Exam | Quiz

True or False - The following code is valid: numbers = [75, 20, 35, 42] for number in range( 0, len( numbers ) ): print( numbers[number] )

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