Question

* WAP to Check whether a number is Armstrong or not ​

Answer 1

Answer:

Check Armstrong Number of n digits Enter an integer: 1634 1634 is an Armstrong number. In this program, the number of digits of an integer is calculated first and stored in n . And, the pow() function is used to compute the power of individual digits in each iteration of the second for loop.

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Answer 2

An Armstrong number is a number whose sum of cubes of digits is equal to the number itself.

For example:

153 = 1³+5³+3³

1+125+27

=153

Program:

import java. util.*;

class Armstrong

{

public static void main (string args [])

{

Scanner sc = new Scanner

int n, r, p, s=0, m;

System.out.println ("Enter a number");

n=sc.nextInt();

while

{

r=n%10

p=r*r*r;

s=s+p;

n=n/10;

}

if (m==s)

System.out.println (m+"is Armstrong");

else

System.out.println (m+"is not Armstrong");

}

}