Java Program To Find Armstrong Numbers. - Java Program Example

Write Java Program To Find Amastrong Numbers.   In This Post We Share A Java Program Code For Find Amastrong Numbers,  When We Compile  This Program Compiler Ask To Enter  A Number  And Show Output After Compile Program.

---

 

package com.androidpro.in;




import java.util.*;

public class Main {

    public static void main(String args[])
    {
        int n, sum = 0, temp, remainder, digits = 0;

        Scanner in = new Scanner(System.in);
        System.out.println("Input a number to check if it is an Armstrong number");
        n = in.nextInt();

        temp = n;

// Count number of digits

        while (temp != 0) {
            digits++;
            temp = temp/10;
        }

        temp = n;

        while (temp != 0) {
            remainder = temp%10;
            sum = sum + power(remainder, digits);
            temp = temp/10;
        }

        if (n == sum)
            System.out.println(n + " is an Armstrong number.");
        else
            System.out.println(n + " is not an Armstrong number.");
    }

    static int power(int n, int r) {
        int c, p = 1;

        for (c = 1; c <= r; c++)
            p = p*n;

        return p;
    }


}

Output

Input a number to check if it is an Armstrong number
9926315
9926315 is an Armstrong number.


Input a number to check if it is an Armstrong number
15781
45781 is not an Armstrong number.