Java_Fundamentals/CheckArmstrong.java at main · devdeepak06/Java_Fundamentals · GitHub

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Check Armstrong

Write a Program to determine if the given number is Armstrong number or not. Print true if number is armstrong, otherwise print false.

An Armstrong number is a number (with digits n) such that the sum of its digits raised to nth power is equal to the number itself.

For example,

371, as 3^3 + 7^3 + 1^3 = 371

1634, as 1^4 + 6^4 + 3^4 + 4^4 = 1634

import java.util.Scanner;

public class CheckArmstrong {

public static void main(String[] args) {

Scanner s=new Scanner(System.in);

int a,b,c,r,f,sum=0,i,n=0;

c=s.nextInt();

a=c;

b=c;

while(c>0)

{

c=c/10;

n++;

}

while(a>0)

{

f=1;

r=a%10;

for(i=1;i<=n;i++)

f=f*r;

sum=sum+f;

a=a/10;

}

if(b==sum)

System.out.println("true");

else

System.out.println("false");

}

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