public class Die
{
    public Die(int value)
    {
        this.value = value;
    }

    public void flip()
    {
        if (flippable)
            value = 7 - value;
    }

    public String toString()
    {
        return "" + value;
    }

    public int getValue()
    {
        return value;
    }

    public boolean isFlippable()
    {
        return flippable;
    }

    public void setFlippable(boolean newValue)
    {
        flippable = newValue;
    }

    private int value;
    private boolean flippable;
}