└── MagicNumber.java


/MagicNumber.java:
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 1 | import java.util.Scanner;
 2 | 
 3 | public class MagicNumber {
 4 |     public static void main(String[] args) {
 5 |         Scanner scanner = new Scanner(System.in);
 6 |         System.out.print("Enter a number: ");
 7 |         int number = scanner.nextInt();
 8 |         
 9 |         if (isMagicNumber(number)) {
10 |             System.out.println(number + " is a Magic Number!");
11 |         } else {
12 |             System.out.println(number + " is NOT a Magic Number.");
13 |         }
14 |         
15 |         scanner.close();
16 |     }
17 | 
18 |     public static boolean isMagicNumber(int num) {
19 |         int sum = num;
20 |         
21 |         // Reduce the number to a single digit
22 |         while (sum > 9) {
23 |             sum = digitSum(sum);
24 |         }
25 |         
26 |         return sum == 1;
27 |     }
28 | 
29 |     public static int digitSum(int num) {
30 |         int sum = 0;
31 |         while (num > 0) {
32 |             sum += num % 10; // Add the last digit
33 |             num /= 10;       // Remove the last digit
34 |         }
35 |         return sum;
36 |     }
37 | }
38 | 


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