32 lines
926 B
Java
32 lines
926 B
Java
// enums/Input.java
|
|
// (c)2021 MindView LLC: see Copyright.txt
|
|
// We make no guarantees that this code is fit for any purpose.
|
|
// Visit http://OnJava8.com for more book information.
|
|
import java.util.*;
|
|
|
|
public enum Input {
|
|
NICKEL(5), DIME(10), QUARTER(25), DOLLAR(100),
|
|
TOOTHPASTE(200), CHIPS(75), SODA(100), SOAP(50),
|
|
ABORT_TRANSACTION {
|
|
@Override public int amount() { // Disallow
|
|
throw new RuntimeException("ABORT.amount()");
|
|
}
|
|
},
|
|
STOP { // This must be the last instance.
|
|
@Override public int amount() { // Disallow
|
|
throw new
|
|
RuntimeException("SHUT_DOWN.amount()");
|
|
}
|
|
};
|
|
int value; // In cents
|
|
Input(int value) { this.value = value; }
|
|
Input() {}
|
|
int amount() { return value; }; // In cents
|
|
static Random rand = new Random(47);
|
|
public static Input randomSelection() {
|
|
// Don't include STOP:
|
|
return
|
|
values()[rand.nextInt(values().length - 1)];
|
|
}
|
|
}
|