Question

An Armstrong number is a number such that the sum of its digits raised to the third power is equal to the number itself. Write a program to check if an integer k is an Armstrong Number or Not.

Answer 1

An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is ... such that the sum ! of its digits raised to the third power is equal to the number !

Answer 2

the number we want to check for armstrong is k in the following program.

import java.util.*;

class armstrong  

{

public static void main(String args[])

{

Scanner sc=new Scanner(System.in);

int s=0,d,di;

System.out.println("enter a no.");

int k=sc.nextInt();

int x=k;

while(x!=0)

{

d=x%10;

di=d*d*d;

s=s+di;

x=x/10;

}

if(s==k)

System.out.println("armstrong");

else

System.out.println("not armstrong");

}

}

Hope it helps!!!^_^

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