Assignemnt #76: Collatz Sequence

Code

    /// Name: Kelsey Lieberman
    /// Period 5
    /// Program Name: CollatzSequence
    /// File Name: CollatzSequence.java
    /// Date Finished: 12/16/2015
    
import java.util.Scanner;

public class CollatzSequence
{
    public static void main(String[] args) throws Exception
    {
        
        Scanner key = new Scanner(System.in);
        
        int i, col;
        
        System.out.print("Give me any natural number to start with: ");
        i = key.nextInt();
        System.out.println("Starting number is " + i + ".");
        Thread.sleep(1000);
        col = 1;
        
        while (i != 1)
        {
            if (i%2 == 0)
            {
                i = i / 2;
                System.out.print(i + "\t");
            }
            
            else if (i%2 != 0)
            {
                i = ((3 * i) + 1);
                System.out.print(i + "\t");
            }
            
            if (col == 5)
            {
                System.out.println();
                col = 0;
            }
            
            col ++;
        }
        System.out.println();
    }
}
    

Picture of the output