350-401 · Question #1070
Refer to the exhibit. What is the output of this code?
The correct answer is A. 1st_item#######: 645298791871446. The Python code performs string slicing on a numeric string and concatenates a specific portion of it with a predefined prefix.
Question
Refer to the exhibit. What is the output of this code?
Exhibits
Options
- A1st_item#######: 645298791871446
- B1st_item#######: 6452987918
- C1st_item#######: 8791871446
- D645298791871446
How the community answered
(45 responses)- A76% (34)
- B4% (2)
- C7% (3)
- D13% (6)
Why each option
The Python code performs string slicing on a numeric string and concatenates a specific portion of it with a predefined prefix.
The `long_number` string is '645298791871446'. The slice `long_number[1:]` extracts all characters from index 1 (the second character, which is '4') to the end, resulting in '45298791871446'. The print statement then concatenates '1st_item#######: 6' with this sliced string, yielding the final output '1st_item#######: 645298791871446'.
The slice `long_number[1:]` starts from '4', not implicitly including '6', and the result '6452987918' is an incorrect length for the slice combined with the prefix.
The slice `long_number[1:]` results in '45298791871446', not '8791871446', indicating an incorrect starting index for the slice.
This option shows only the original `long_number` string without applying the string slicing or the prefix concatenation performed by the Python code.
Concept tested: Python string slicing and concatenation
Source: https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str
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