Armstrong.java

import java.util.*;
class Armstrong
{
 int arm(int n)
 {
 int c,s=0;
 while(n>0)
 {
 c=n%10;
 s=s+(int)(Math.pow(c,3));
 n=n/10;
 }
 return s;
 }
 void range(int l,int u)
 {
 int i;
 for(i=l;i<=u;i++)
 {
 if(i==arm(i))
 System.out.println(i+" ");
 }
 }
 public static void main()
 {
 Scanner sc=new Scanner(System.in);
 Armstrong ob=new Armstrong();
 int lo,up;
 System.out.println("Enter the lower and the upper limits");
 lo=sc.nextInt();
 up=sc.nextInt();
 ob.range(lo,up);
 }
}