Java Questions :Digits - II

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Java Questions :Digits - II

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Write a program to read a non-negative integer n, compute the sum of its digits. If sum is greater than 9 repeat the process and calculate the sum once again until the final sum comes to single digit.Return the single digit.

Include a class UserMainCode with a static method getDigitSum which accepts the integer value. The return type is integer.
Create a Class Main which would be used to accept the string and call the static method present in UserMainCode.

Input and Output Format:
Input consists of a integer.
Output consists of integer.
Refer sample output for formatting specifications.

Sample Input 1:
9999
Sample Output 1:
9

Sample Input 2:
698
Sample Output 2:
5

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import java.io.*;

import java.util.*;

public class Main {

public static void main(String[] args) {

int rem,sum=0,dsum=0,rem1;

Scanner sc=new Scanner(System.in);

int digit=sc.nextInt();

while(digit!=0)

{

rem=digit%10;

sum=sum+rem;

digit/=10;

}

if(sum<9)

{

System.out.println(sum);

}

else

{

while(sum!=0)

{

rem1=sum%10;

dsum+=rem1;

sum/=10;

}

System.out.println(dsum);

}

}

}

 

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