Write a program CheckDigit.java that takes a 12 or 13-digit long as a command-line argument and displays the digit computed as follows:Take for an example the number 048231312622Sum every other digit of the code, starting from the right. In the example, that is 2 + 6 + 1 + 1 + 2 + 4 = 16. Discard the tens digit and keep the ones digit, 6. Start with the second to last digit and do the same thing. Sum the digits, discard the tens digit and keep the ones digit. In this example this is 2 + 2 + 3 + 3 + 8 + 0=18. Discarding the 10 leaves 8. Multiply this number by 3 and again discard the tens digit. 8×3 = 24, leaving 4.Add the numbers from steps 1 and 2. Again drop the tens digit. 6 + 4 = 10, leaving the digit 0 (zero).Hint 1: the maximum value that can be stored in an integer variable is 2147483647 which is only 10 digits long. To read a 12 or 13-digit integer from command line argument you will need to store it in a long variable. Use: long number = Long.parseLong(args[0]); to read a long from the command line.Hint 2: to extract the rightmost digit of a number use the modulus operator.Hint 3: to remove the rightmost digit of a number use the integer division by 10Hint 4: for full credit use a loop to compute the sumsAssume the input value used to test your program is a 12 or 13-digit positive integer.

Program plan: Initialize the variables sum1, sum2. define the variable long number. Iterate over…

Answered: Write a program CheckDigit.java that…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a program CheckDigit.java that takes a 12 or 13-digit long as a command-line argument and displays the digit computed as follows:
- - Take for an example the number 048231312622
  - Sum every other digit of the code, starting from the right. In the example, that is 2 + 6 + 1 + 1 + 2 + 4 = 16. Discard the tens digit and keep the ones digit, 6.
  - Start with the second to last digit and do the same thing. Sum the digits, discard the tens digit and keep the ones digit. In this example this is 2 + 2 + 3 + 3 + 8 + 0=18. Discarding the 10 leaves 8. Multiply this number by 3 and again discard the tens digit. 8×3 = 24, leaving 4.
  - Add the numbers from steps 1 and 2. Again drop the tens digit. 6 + 4 = 10, leaving the digit 0 (zero).
- - Hint 1: the maximum value that can be stored in an integer variable is 2147483647 which is only 10 digits long. To read a 12 or 13-digit integer from command line argument you will need to store it in a long variable. Use: long number = Long.parseLong(args[0]); to read a long from the command line.
  - Hint 2: to extract the rightmost digit of a number use the modulus operator.
  - Hint 3: to remove the rightmost digit of a number use the integer division by 10
  - Hint 4: for full credit use a loop to compute the sums
- Assume the input value used to test your program is a 12 or 13-digit positive integer.

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