(UPCS) verifies the 12-digit code scanned by comparing the code's last digit (called a check digit ) to its own computation of the check digit from the first 11 digits as Eollows: . [step 1]Calculate the sum of the digits in the odd-numbered positions (the first, third, ---! eleventh digits) and multiply this sum by 3. II. [step 21Calculate the sum of the digits in the even-numbered positions (the second, fourth, tenth digits) and add this to the previous result (result of stepl). II. [step 3]If the last digit of the result from step 2 is 0, then o is the check digit. Otherwise, subtract the last digit from 10 to calculate the check digit. IV. [step 4]If the check digit matches the final digit of the 12-digit UPC, the UPc is assumed correct. 1. Write main function that prompts the user to enter the 12 digits of a barcode. The program should store the digits in an integer array. 2. Write a "check" function to calculate the check digit, and compare it to the final barcode digit. If the digits match, output the barcode with the message "validated." If not, output the barcode with the message "error in barcode." Also, output with labels the results from steps 1 and 2 of the check-digit calculations. Note that the "first" digit of the barcode will be stored in element 0 of the array. (clue: "check" function takes two argument and it doesnt return any value)
(UPCS) verifies the 12-digit code scanned by comparing the code's last digit (called a check digit ) to its own computation of the check digit from the first 11 digits as Eollows: . [step 1]Calculate the sum of the digits in the odd-numbered positions (the first, third, ---! eleventh digits) and multiply this sum by 3. II. [step 21Calculate the sum of the digits in the even-numbered positions (the second, fourth, tenth digits) and add this to the previous result (result of stepl). II. [step 3]If the last digit of the result from step 2 is 0, then o is the check digit. Otherwise, subtract the last digit from 10 to calculate the check digit. IV. [step 4]If the check digit matches the final digit of the 12-digit UPC, the UPc is assumed correct. 1. Write main function that prompts the user to enter the 12 digits of a barcode. The program should store the digits in an integer array. 2. Write a "check" function to calculate the check digit, and compare it to the final barcode digit. If the digits match, output the barcode with the message "validated." If not, output the barcode with the message "error in barcode." Also, output with labels the results from steps 1 and 2 of the check-digit calculations. Note that the "first" digit of the barcode will be stored in element 0 of the array. (clue: "check" function takes two argument and it doesnt return any value)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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![scan
(UPCS) verifies the 12-digit code scanned by comparing the
code's last digit (called a check digit ) to its own
computation of the check digit from the first 11 digits as
follows:
I. [step 1]Calculate the sum of the digits in the
odd-numbered positions
eleventh digits) and multiply this sum by 3.
(the first,
third,
II. [step 2]Calculate the sum of the digits in the
even-numbered positions (the second, fourth, .,
tenth digits) and add this to the previous
result (result of stepl).
III. [step 3]If the last digit of the result from step
2 is 0, then o is the check digit. Otherwise,
subtract the last digit from 10 to calculate the
check digit.
IV. [step 4]If the check digit matches the final digit
of the 12-digit UPC, the UPC is assumed correct.
1. Write main function that prompts the user to enter
the 12 digits of a barcode. The program should
store the digits in an integer array.
2. Write a "check" function to calculate the check
digit, and compare it to the final barcode digit.
If the digits match, output the barcode with the
message "validated." If not, output the barcode
with the message "error in barcode." Also, output
with labels the results from steps 1 and 2 of the
check-digit calculations. Note that the "first"
digit of the barcode will be stored in element 0
of the array. (clue: "check" function takes
argument and it doesnt return any value)
two](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd8daf07a-15ff-4837-85a9-efaf7657a616%2Fba402b04-77bb-4ea4-99e7-fe96a8033516%2Fkkl48zc_processed.png&w=3840&q=75)
Transcribed Image Text:scan
(UPCS) verifies the 12-digit code scanned by comparing the
code's last digit (called a check digit ) to its own
computation of the check digit from the first 11 digits as
follows:
I. [step 1]Calculate the sum of the digits in the
odd-numbered positions
eleventh digits) and multiply this sum by 3.
(the first,
third,
II. [step 2]Calculate the sum of the digits in the
even-numbered positions (the second, fourth, .,
tenth digits) and add this to the previous
result (result of stepl).
III. [step 3]If the last digit of the result from step
2 is 0, then o is the check digit. Otherwise,
subtract the last digit from 10 to calculate the
check digit.
IV. [step 4]If the check digit matches the final digit
of the 12-digit UPC, the UPC is assumed correct.
1. Write main function that prompts the user to enter
the 12 digits of a barcode. The program should
store the digits in an integer array.
2. Write a "check" function to calculate the check
digit, and compare it to the final barcode digit.
If the digits match, output the barcode with the
message "validated." If not, output the barcode
with the message "error in barcode." Also, output
with labels the results from steps 1 and 2 of the
check-digit calculations. Note that the "first"
digit of the barcode will be stored in element 0
of the array. (clue: "check" function takes
argument and it doesnt return any value)
two
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