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//: enumerated/CarWash.java

import java.util.*;

import static net.mindview.util.Print.*;

public class CarWash {

public enum Cycle {

UNDERBODY {

void action() { print("Spraying the underbody"); }

},

WHEELWASH {

void action() { print("Washing the wheels"); }

},

PREWASH {

void action() { print("Loosening the dirt"); }

},

BASIC {

void action() { print("The basic wash"); }

},

HOTWAX {

void action() { print("Applying hot wax"); }

},

RINSE {

void action() { print("Rinsing"); }

},

BLOWDRY {

void action() { print("Blowing dry"); }

};

abstract void action();

}

EnumSet<Cycle> cycles =

EnumSet.of(Cycle.BASIC, Cycle.RINSE);

public void add(Cycle cycle) { cycles.add(cycle); }

public void washCar() {

for(Cycle c : cycles)

c.action();

}

public String toString() { return cycles.toString(); }

public static void main(String[] args) {

CarWash wash = new CarWash();

print(wash);

wash.washCar();

// Order of addition is unimportant:

wash.add(Cycle.BLOWDRY);

wash.add(Cycle.BLOWDRY); // Duplicates ignored

wash.add(Cycle.RINSE);

wash.add(Cycle.HOTWAX);

print(wash);

wash.washCar();

}

} /* Output:

[BASIC, RINSE]

The basic wash

Rinsing

[BASIC, HOTWAX, RINSE, BLOWDRY]

The basic wash

Applying hot wax

Rinsing

Blowing dry

*///:~