for java ?(Business: check ISBN-13)ISBN-13 is a new standard for identifying books. It uses 13 digits d1d2d3d4d5d6d7d8d9d10d11d12d13. The last digit d13 is a checksum, which is calculated from the other digits using the following formula:10 - (d1 + 3d2 + d3 + 3d4 + d5 + 3d6 + d7 + 3d8 + d9 + 3d10 + d11 + 3d12) % 10If the checksum is 10, replace it with 0. Your program should read the input as a string.Display "invalid input" if the input is incorrect.Sample Run 1Enter the first 12 digits of an ISBN-13 as a string: 978013213080The ISBN-13 number is 9780132130806Sample Run 2Enter the first 12 digits of an ISBN-13 as a string: 978013213079The ISBN-13 number is 9780132130790Sample Run 3Enter the first 12 digits of an ISBN-13 as a string: 9780132097801320 is an invalid inputClass Name: Exercise05_47

Question

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MrRoyal MrRoyal · Answer 1 · 2021-03-30T16:44:26+02:00

Answer:

In Java:

import java.util.*;

public class Main{

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

String isbn;

System.out.print("First 1:2 digits: ");

isbn = input.nextLine();

if(isbn.length()==12){

int chksum = 0;

for(int i = 0; i<12;i++){

if((i+1)%2==0){ chksum+= 3 * Character.getNumericValue(isbn.charAt(i)); }

else{ chksum+=Character.getNumericValue(isbn.charAt(i)); } }

chksum%=10;

chksum=10-chksum;

if(chksum==10){

System.out.print("The ISBN-13 number is "+isbn+"0");}

else{

System.out.print("The ISBN-13 number is "+isbn+""+chksum); } }

else{

System.out.print("Invalid Input");

} }}

Explanation:

See attachment for explanation where comments are used to explain each line