1    /* Model a die in terms of two properties: 
2     * * - order, the number of faces* 
3     * - top, the value of the top face*/
4    
5    package chance;
6            public class Die {
7                //THE INSTANCE VARIABLES (STATE)
8                private int order;
9                private int top;
10   
11               //THE CONSTRUCTORS
12               public Die() {
13                   order = 6;
14                   top = (int) ((Math.random() * 6) + 1);
15               }
16               public Die (int nrOfSides){
17                   order = nrOfSides;
18                   top = (int) ((Math.random() * nrOfSides )+ 1);
19               }
20               //THE METHODS (BEHAVIOR)
21               public int top()
22               {return top;}
23   
24               public void roll() {
25                   top = (int) ( ( Math.random() * order ) + 1);}}
26