Each fortune cookie will have an array of 10 strings that will hold different fo
ID: 3743258 • Letter: E
Question
Each fortune cookie will have an array of 10 strings that will hold different fortunes. You can make up the 10 fortunes. One of those fortunes will be the active one. That active fortune will be selected by generating a random number for an index in the array. The UML class diagram for the Fortune Cookie class looks like the following:
FortuneCookie
-rand_index : int
- fortunes[10] : string
+ openFortuneCookie() : void
+generateNewFortune() : void
+<<constructor>>FortuneCookie() :
The fortune cookie will have the following methods:
void generateNewFortune();
Summary: This function creates a new random index that
represents a different fortune. The fortunes are stored
in a string array called fortunes, of size 10.
void openFortuneCookie();
Summary: This function displays the fortune at rand_index in the array of strings. Sample output
shown below:
|=========================|
| You will get great news!|
|=========================|
FortuneCookie();
Summary: The default constructor assigns a fortune to each
index in the fortunes array. It also initializes the rand_index
to a random number from 0 to 9.
FortuneCookie
-rand_index : int
- fortunes[10] : string
+ openFortuneCookie() : void
+generateNewFortune() : void
+<<constructor>>FortuneCookie() :
Explanation / Answer
import java.util.Random;
public class FortuneCookie {
private int rand_index;
private String[] fortunes={"1","2","3","4","5","6","7","8","9","10"};
FortuneCookie()
{
rand_index = new Random().nextInt(10);
}
void openFortuneCookie()
{
System.out.println("|=============|");
System.out.println(this.fortunes[this.rand_index]);
System.out.println("|=============|");
}
void generateNewFortune()
{
rand_index = new Random().nextInt(10);
}
public static void main(String args[])
{
FortuneCookie fc = new FortuneCookie();
fc.openFortuneCookie();
fc.generateNewFortune();
fc.openFortuneCookie();
}
}
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