JAVA Program to print hailstone sequence of a numer

Save as "Hail.java"



import java.util.*;

public class Hail
{
public static void main(String[] args)
{
int i,n;
Scanner in = new Scanner(System.in);
int[] arr = new int[20];
System.out.println("Enter the number from which Hailstone sequence is to be found:");
n = in.nextInt();
System.out.println("The Hailstone sequence is:");
while(n!=1)
{
if(n%2==0)
{ n =n/2;
System.out.println(n);
}
else
{
n = ((n*3)+1);
System.out.println(n);
}
}
}
}