1    
2    /* 
3     *Model a die in terms of two properties: 
4     * -order, the number of faces 
5     * top, the value of the top face 
6     */
7    package chance;
8    
9    public class Die {
10       //THE INSTANCE VARIABLES (STATE)
11       private int order;
12       private int top;
13   
14       //THE CONSTRUCTORS
15   
16       public Die() {
17           order = 6;
18           top = (int) ((Math.random() * 6) + 1);
19       }
20   
21       public Die(int nrOfSides) {
22           order = nrOfSides;
23           top = (int) ((Math.random() * order) + 1);
24       }
25   
26       //THE METHODS (BEHAVIOR)
27   
28       public int top() {
29           return top;
30       }
31   
32       public void roll(){
33           top = (int) ((Math.random() * order) +1);
34       }
35   
36   }