import java.util.Random;  //Warn Java we want to use Random

/**
 * The Die class models a die of the sort you'd roll:  It
 * can be created with as many sides as you wish, and has
 * a roll method that returns an appropriate random result.
 */
public class Die
{
    private int numSides;  // The number of sides on this die
    private Random rng;    // The die's random number generator
    
    /**
     * Constructor for objects of class Die.  The default constructor
     * (this one, since it takes no parameters) will create a six-sided
     * die.
     */
    public Die()
    {
        rng = new Random();
        numSides = 6;
    }
    
    /**
     * This constructor creates a Die object with the specified number
     * of sides.
     * @param sides The number of sides our virtual Die should have.
     */
    public Die(int sides)
    {
        rng = new Random();
        numSides = sides;
    }

    /**
     * Simulates a roll of this Die instance.  
     * @return A random value in the range [1..number of sides]
     */
    public int roll()
    {
        int value = rng.nextInt(numSides)+1; 
        //System.out.println("Roll is about to return "+value);
        return value;
    }
    
    /**
     * Returns the number of sides on this die.
     * @return The number of sides.
     */
    public int getNumSides() 
    {
        return numSides;
    }
}