Question
Program to determine whether a given number is a Harshad number.
Program to determine whether a given number is a Harshad number.
(A number is said to be the Harshad number if it is divisible by the sum of its digit.)
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Code
import java.util.Scanner;
public class HarshadNumberInArray
{
public static void main(String[] args)
{
/* Initialize array */
int [] arr;
int n=0,i=0,sum=0,rem=0,temp=0;
Scanner sc = new Scanner(System.in);
System.out.println("Enter a number of elements in the array");
n = sc.nextInt();
arr=new int[n];
System.out.println("Enter numbers in array");
for(i=0;i< n;i++)
{
arr[i]=sc.nextInt();
}
/* printing Harshad elements in an array */
System.out.println("Harshad Elements in an array");
for(i=0;i< n;i++)
{
/*Make a copy of arr[i] and store it in variable temp*/
temp = arr[i];
sum=0;
/*Calculates sum of digits*/
while(temp> 0)
{
rem = temp%10;
sum = sum + rem;
temp = temp/10;
}
//Checks whether number is divisible by sum of digits
if((arr[i]%sum) == 0)
{
System.out.println(arr[i]+ " ");
}
}
}
}