Magic number | Magic number in java
A number is said to a magic number if the sum of its digit
when calculated till a single digit is come recursively adding the summation
of its digits and it is equal to 1.
Example, 19, 29, 91, 991, 226 etc
19 --> 1 + 9 = 10 = 1 + 0 = 1
91--> 9 + 1 =
10 = 1 + 0 =1
991--> 9 + 9 +
1 = 19 = 1 + 9 = 10 = 1 + 0 = 1
import java.util.Scanner;
// Magic Number check
public class MagicNumberCheck
{
public static
void main(String[] args)
{
int
number; // Number to check magic or
not
int rem =
1; // reminder
int
num; // store number
int sum =
0; // summation
Scanner sc
= new Scanner(System.in);
System.out.print("Enter number to Check Magic Number: ");
number =
sc.nextInt();
num =
number;
while (num
> 9)
{
while
(num > 0)
{
rem
= num % 10;
sum = sum + rem;
num
= num / 10;
}
num =
sum;
sum =
0;
}
if (num ==
1)
{
System.out.println("Magic Number");
}
else
{
System.out.println("Not Magic Number");
}
}
}
