Question

Write a java program to input a number. Use a function intArmstrong(int n) to receive the number and check whether it is an Armstrong number or not. The function returns 1 if the number is Armstrong otherwise returns 0

Answer 1

28

import java.util.Scanner;

class ArmstrongRecursion

{

int x;

int findArmstrong(int n,int a)

{

if(n!=0)

{

x=n%10;

a=a+(x*x*x);

n/=10 ;

return findArmstrong(n,a);

}

return a;

}

public static void main(String[] arg)

{

ArmstrongRecursion A=new ArmstrongRecursion();

int arm;

System.out.println("Armstrong numbers between 1 to 1000");

for(int num=1;num<500;num++)

{

arm=A.findArmstrong(num,0);

if(arm==num)

System.out.println(num);

}

}

}