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enumerated to enums + Vending Machine Fix

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This commit is contained in:
Bruce Eckel 2015-05-31 10:42:27 -07:00
parent 8f5f2eeb7e
commit ddb18c645d
41 changed files with 244 additions and 239 deletions
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39
enumerated/build.xml
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@ -1,39 +0,0 @@
<?xml version="1.0" ?>
<project default="run">
<property name="chapter" value="enumerated"/>
<property name="excludedfiles" value="VendingMachine.java"/>
<import file="../Ant-Common.xml"/>
<import file="../Ant-Clean.xml"/>
<target name="run" description="Compile and run" depends="build">
<jrun cls="BigEnumSet" />
<jrun cls="enumerated.Burrito" dirpath="../enumerated" />
<jrun cls="CarWash" />
<jrun cls="ConstantSpecificMethod" />
<jrun cls="EnumClass" />
<jrun cls="enumerated.EnumMaps" dirpath="../enumerated" />
<jrun cls="enumerated.EnumSets" dirpath="../enumerated" />
<jrun cls="NonEnum" />
<jrun cls="OverrideConstantSpecific" />
<jrun cls="OzWitch" />
<jrun cls="PostOffice" />
<jrun cls="RandomTest" />
<jrun cls="Reflection" />
<jrun cls="enumerated.RoShamBo1" dirpath="../enumerated" />
<jrun cls="enumerated.RoShamBo2" dirpath="../enumerated" />
<jrun cls="enumerated.RoShamBo3" dirpath="../enumerated" />
<jrun cls="enumerated.RoShamBo4" dirpath="../enumerated" />
<jrun cls="enumerated.RoShamBo5" dirpath="../enumerated" />
<jrun cls="enumerated.RoShamBo6" dirpath="../enumerated" />
<jrun cls="SecurityCategory" />
<jrun cls="SpaceShip" />
<jrun cls="TrafficLight" />
<jrun cls="UpcastEnum" />
<jrun cls="enumerated.cartoons.EnumImplementation" dirpath="../enumerated/cartoons" />
<jrun cls="enumerated.menu.Meal" dirpath="../enumerated/menu" />
<jrun cls="enumerated.menu.Meal2" dirpath="../enumerated/menu" />
<jrun cls="enumerated.menu.TypeOfFood" dirpath="../enumerated/menu" />
</target>
</project>

18
enumerated/menu/Course.java
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@ -1,18 +0,0 @@
//: enumerated/menu/Course.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated.menu;
import net.mindview.util.*;
public enum Course {
APPETIZER(Food.Appetizer.class),
MAINCOURSE(Food.MainCourse.class),
DESSERT(Food.Dessert.class),
COFFEE(Food.Coffee.class);
private Food[] values;
private Course(Class<? extends Food> kind) {
values = kind.getEnumConstants();
}
public Food randomSelection() {
return Enums.random(values);
}
} ///:~

22
enumerated/menu/Food.java
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@ -1,22 +0,0 @@
//: enumerated/menu/Food.java
// ©2015 MindView LLC: see Copyright.txt
// Subcategorization of enums within interfaces.
package enumerated.menu;
public interface Food {
enum Appetizer implements Food {
SALAD, SOUP, SPRING_ROLLS;
}
enum MainCourse implements Food {
LASAGNE, BURRITO, PAD_THAI,
LENTILS, HUMMOUS, VINDALOO;
}
enum Dessert implements Food {
TIRAMISU, GELATO, BLACK_FOREST_CAKE,
FRUIT, CREME_CARAMEL;
}
enum Coffee implements Food {
BLACK_COFFEE, DECAF_COFFEE, ESPRESSO,
LATTE, CAPPUCCINO, TEA, HERB_TEA;
}
} ///:~

41
enumerated/menu/Meal.java
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@ -1,41 +0,0 @@
//: enumerated/menu/Meal.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated.menu;
public class Meal {
public static void main(String[] args) {
for(int i = 0; i < 5; i++) {
for(Course course : Course.values()) {
Food food = course.randomSelection();
System.out.println(food);
}
System.out.println("---");
}
}
} /* Output:
SPRING_ROLLS
VINDALOO
FRUIT
DECAF_COFFEE
---
SOUP
VINDALOO
FRUIT
TEA
---
SALAD
BURRITO
FRUIT
TEA
---
SALAD
BURRITO
CREME_CARAMEL
LATTE
---
SOUP
BURRITO
TIRAMISU
ESPRESSO
---
*///:~

44
enumerated/menu/Meal2.java
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@ -1,44 +0,0 @@
//: enumerated/menu/Meal2.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated.menu;
import net.mindview.util.*;
public enum Meal2 {
APPETIZER(Food.Appetizer.class),
MAINCOURSE(Food.MainCourse.class),
DESSERT(Food.Dessert.class),
COFFEE(Food.Coffee.class);
private Food[] values;
private Meal2(Class<? extends Food> kind) {
values = kind.getEnumConstants();
}
public interface Food {
enum Appetizer implements Food {
SALAD, SOUP, SPRING_ROLLS;
}
enum MainCourse implements Food {
LASAGNE, BURRITO, PAD_THAI,
LENTILS, HUMMOUS, VINDALOO;
}
enum Dessert implements Food {
TIRAMISU, GELATO, BLACK_FOREST_CAKE,
FRUIT, CREME_CARAMEL;
}
enum Coffee implements Food {
BLACK_COFFEE, DECAF_COFFEE, ESPRESSO,
LATTE, CAPPUCCINO, TEA, HERB_TEA;
}
}
public Food randomSelection() {
return Enums.random(values);
}
public static void main(String[] args) {
for(int i = 0; i < 5; i++) {
for(Meal2 meal : Meal2.values()) {
Food food = meal.randomSelection();
System.out.println(food);
}
System.out.println("---");
}
}
} /* Same output as Meal.java *///:~

13
enumerated/menu/TypeOfFood.java
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@ -1,13 +0,0 @@
//: enumerated/menu/TypeOfFood.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated.menu;
import static enumerated.menu.Food.*;
public class TypeOfFood {
public static void main(String[] args) {
Food food = Appetizer.SALAD;
food = MainCourse.LASAGNE;
food = Dessert.GELATO;
food = Coffee.CAPPUCCINO;
}
} ///:~

4
enumerated/AlarmPoints.java → enums/AlarmPoints.java
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@ -1,6 +1,6 @@
//: enumerated/AlarmPoints.java
//: enums/AlarmPoints.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated;
package enums;
public enum AlarmPoints {
STAIR1, STAIR2, LOBBY, OFFICE1, OFFICE2, OFFICE3,
OFFICE4, BATHROOM, UTILITY, KITCHEN

2
enumerated/BigEnumSet.java → enums/BigEnumSet.java
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@ -1,4 +1,4 @@
//: enumerated/BigEnumSet.java
//: enums/BigEnumSet.java
// ©2015 MindView LLC: see Copyright.txt
import java.util.*;

6
enumerated/Burrito.java → enums/Burrito.java
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@ -1,7 +1,7 @@
//: enumerated/Burrito.java
//: enums/Burrito.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated;
import static enumerated.Spiciness.*;
package enums;
import static enums.Spiciness.*;
public class Burrito {
Spiciness degree;

2
enumerated/CarWash.java → enums/CarWash.java
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@ -1,4 +1,4 @@
//: enumerated/CarWash.java
//: enums/CarWash.java
// ©2015 MindView LLC: see Copyright.txt
import java.util.*;
import static net.mindview.util.Print.*;

4
enumerated/Competitor.java → enums/Competitor.java
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@ -1,7 +1,7 @@
//: enumerated/Competitor.java
//: enums/Competitor.java
// ©2015 MindView LLC: see Copyright.txt
// Switching one enum on another.
package enumerated;
package enums;
public interface Competitor<T extends Competitor<T>> {
Outcome compete(T competitor);

2
enumerated/ConstantSpecificMethod.java → enums/ConstantSpecificMethod.java
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@ -1,4 +1,4 @@
//: enumerated/ConstantSpecificMethod.java
//: enums/ConstantSpecificMethod.java
// ©2015 MindView LLC: see Copyright.txt
import java.util.*;
import java.text.*;

2
enumerated/EnumClass.java → enums/EnumClass.java
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@ -1,4 +1,4 @@
//: enumerated/EnumClass.java
//: enums/EnumClass.java
// ©2015 MindView LLC: see Copyright.txt
// Capabilities of the Enum class
import static net.mindview.util.Print.*;

6
enumerated/EnumMaps.java → enums/EnumMaps.java
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@ -1,9 +1,9 @@
//: enumerated/EnumMaps.java
//: enums/EnumMaps.java
// ©2015 MindView LLC: see Copyright.txt
// Basics of EnumMaps.
package enumerated;
package enums;
import java.util.*;
import static enumerated.AlarmPoints.*;
import static enums.AlarmPoints.*;
import static net.mindview.util.Print.*;
interface Command { void action(); }

6
enumerated/EnumSets.java → enums/EnumSets.java
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@ -1,9 +1,9 @@
//: enumerated/EnumSets.java
//: enums/EnumSets.java
// ©2015 MindView LLC: see Copyright.txt
// Operations on EnumSets
package enumerated;
package enums;
import java.util.*;
import static enumerated.AlarmPoints.*;
import static enums.AlarmPoints.*;
import static net.mindview.util.Print.*;
public class EnumSets {

2
enumerated/Input.java → enums/Input.java
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@ -1,4 +1,4 @@
//: enumerated/Input.java
//: enums/Input.java
// ©2015 MindView LLC: see Copyright.txt
import java.util.*;

2
enumerated/NonEnum.java → enums/NonEnum.java
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@ -1,4 +1,4 @@
//: enumerated/NonEnum.java
//: enums/NonEnum.java
// ©2015 MindView LLC: see Copyright.txt
public class NonEnum {

2
enumerated/NotClasses.java → enums/NotClasses.java
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@ -1,4 +1,4 @@
//: enumerated/NotClasses.java
//: enums/NotClasses.java
// ©2015 MindView LLC: see Copyright.txt
// {Exec: javap -c LikeClasses}
import static net.mindview.util.Print.*;

4
enumerated/Outcome.java → enums/Outcome.java
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@ -1,4 +1,4 @@
//: enumerated/Outcome.java
//: enums/Outcome.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated;
package enums;
public enum Outcome { WIN, LOSE, DRAW } ///:~

2
enumerated/OverrideConstantSpecific.java → enums/OverrideConstantSpecific.java
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@ -1,4 +1,4 @@
//: enumerated/OverrideConstantSpecific.java
//: enums/OverrideConstantSpecific.java
// Š2015 MindView LLC: see Copyright.txt
import static net.mindview.util.Print.*;

2
enumerated/OzWitch.java → enums/OzWitch.java
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@ -1,4 +1,4 @@
//: enumerated/OzWitch.java
//: enums/OzWitch.java
// ©2015 MindView LLC: see Copyright.txt
// The witches in the land of Oz.
import static net.mindview.util.Print.*;

2
enumerated/PostOffice.java → enums/PostOffice.java
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@ -1,4 +1,4 @@
//: enumerated/PostOffice.java
//: enums/PostOffice.java
// ©2015 MindView LLC: see Copyright.txt
// Modeling a post office.
import java.util.*;

2
enumerated/RandomTest.java → enums/RandomTest.java
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@ -1,4 +1,4 @@
//: enumerated/RandomTest.java
//: enums/RandomTest.java
// Š2015 MindView LLC: see Copyright.txt
import net.mindview.util.*;

2
enumerated/Reflection.java → enums/Reflection.java
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@ -1,4 +1,4 @@
//: enumerated/Reflection.java
//: enums/Reflection.java
// ©2015 MindView LLC: see Copyright.txt
// Analyzing enums using reflection.
import java.lang.reflect.*;

4
enumerated/RoShamBo.java → enums/RoShamBo.java
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@ -1,7 +1,7 @@
//: enumerated/RoShamBo.java
//: enums/RoShamBo.java
// ©2015 MindView LLC: see Copyright.txt
// Common tools for RoShamBo examples.
package enumerated;
package enums;
import net.mindview.util.*;
public class RoShamBo {

6
enumerated/RoShamBo1.java → enums/RoShamBo1.java
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@ -1,9 +1,9 @@
//: enumerated/RoShamBo1.java
//: enums/RoShamBo1.java
// ©2015 MindView LLC: see Copyright.txt
// Demonstration of multiple dispatching.
package enumerated;
package enums;
import java.util.*;
import static enumerated.Outcome.*;
import static enums.Outcome.*;
interface Item {
Outcome compete(Item it);

6
enumerated/RoShamBo2.java → enums/RoShamBo2.java
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@ -1,8 +1,8 @@
//: enumerated/RoShamBo2.java
//: enums/RoShamBo2.java
// ©2015 MindView LLC: see Copyright.txt
// Switching one enum on another.
package enumerated;
import static enumerated.Outcome.*;
package enums;
import static enums.Outcome.*;
public enum RoShamBo2 implements Competitor<RoShamBo2> {
PAPER(DRAW, LOSE, WIN),

6
enumerated/RoShamBo3.java → enums/RoShamBo3.java
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@ -1,8 +1,8 @@
//: enumerated/RoShamBo3.java
//: enums/RoShamBo3.java
// ©2015 MindView LLC: see Copyright.txt
// Using constant-specific methods.
package enumerated;
import static enumerated.Outcome.*;
package enums;
import static enums.Outcome.*;
public enum RoShamBo3 implements Competitor<RoShamBo3> {
PAPER {

4
enumerated/RoShamBo4.java → enums/RoShamBo4.java
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@ -1,6 +1,6 @@
//: enumerated/RoShamBo4.java
//: enums/RoShamBo4.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated;
package enums;
public enum RoShamBo4 implements Competitor<RoShamBo4> {
ROCK {

6
enumerated/RoShamBo5.java → enums/RoShamBo5.java
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@ -1,9 +1,9 @@
//: enumerated/RoShamBo5.java
//: enums/RoShamBo5.java
// ©2015 MindView LLC: see Copyright.txt
// Multiple dispatching using an EnumMap of EnumMaps.
package enumerated;
package enums;
import java.util.*;
import static enumerated.Outcome.*;
import static enums.Outcome.*;
enum RoShamBo5 implements Competitor<RoShamBo5> {
PAPER, SCISSORS, ROCK;

6
enumerated/RoShamBo6.java → enums/RoShamBo6.java
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@ -1,8 +1,8 @@
//: enumerated/RoShamBo6.java
//: enums/RoShamBo6.java
// ©2015 MindView LLC: see Copyright.txt
// Enums using "tables" instead of multiple dispatch.
package enumerated;
import static enumerated.Outcome.*;
package enums;
import static enums.Outcome.*;
enum RoShamBo6 implements Competitor<RoShamBo6> {
PAPER, SCISSORS, ROCK;

2
enumerated/SecurityCategory.java → enums/SecurityCategory.java
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@ -1,4 +1,4 @@
//: enumerated/SecurityCategory.java
//: enums/SecurityCategory.java
// ©2015 MindView LLC: see Copyright.txt
// More succinct subcategorization of enums.
import net.mindview.util.*;

2
enumerated/SpaceShip.java → enums/SpaceShip.java
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@ -1,4 +1,4 @@
//: enumerated/SpaceShip.java
//: enums/SpaceShip.java
// ©2015 MindView LLC: see Copyright.txt
public enum SpaceShip {
SCOUT, CARGO, TRANSPORT, CRUISER, BATTLESHIP, MOTHERSHIP;

4
enumerated/Spiciness.java → enums/Spiciness.java
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@ -1,6 +1,6 @@
//: enumerated/Spiciness.java
//: enums/Spiciness.java
// ©2015 MindView LLC: see Copyright.txt
package enumerated;
package enums;
public enum Spiciness {
NOT, MILD, MEDIUM, HOT, FLAMING

2
enumerated/TrafficLight.java → enums/TrafficLight.java
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@ -1,4 +1,4 @@
//: enumerated/TrafficLight.java
//: enums/TrafficLight.java
// ©2015 MindView LLC: see Copyright.txt
// Enums in switch statements.
import static net.mindview.util.Print.*;

2
enumerated/UpcastEnum.java → enums/UpcastEnum.java
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@ -1,4 +1,4 @@
//: enumerated/UpcastEnum.java
//: enums/UpcastEnum.java
// ©2015 MindView LLC: see Copyright.txt
// No values() method if you upcast an enum

16
enumerated/VendingMachine.java → enums/VendingMachine.java
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@ -1,16 +1,17 @@
//: enumerated/VendingMachine.java
//: enums/VendingMachine.java
// ©2015 MindView LLC: see Copyright.txt
// {CompileTimeError} Not working in Java 8
// {Args: VendingMachineInput.txt}
import java.util.*;
import net.mindview.util.*;
import static net.mindview.util.Print.*;
enum Category {
MONEY(NICKEL, DIME, QUARTER, DOLLAR),
ITEM_SELECTION(TOOTHPASTE, CHIPS, SODA, SOAP),
QUIT_TRANSACTION(ABORT_TRANSACTION),
SHUT_DOWN(STOP);
MONEY(Input.NICKEL, Input.DIME,
Input.QUARTER, Input.DOLLAR),
ITEM_SELECTION(Input.TOOTHPASTE, Input.CHIPS,
Input.SODA, Input.SOAP),
QUIT_TRANSACTION(Input.ABORT_TRANSACTION),
SHUT_DOWN(Input.STOP);
private Input[] values;
Category(Input... types) { values = types; }
private static EnumMap<Input,Category> categories =
@ -126,7 +127,8 @@ class RandomInputGenerator implements Generator<Input> {
class FileInputGenerator implements Generator<Input> {
private Iterator<String> input;
public FileInputGenerator(String fileName) {
input = new TextFile(fileName, ";").iterator();
// Skip the comment line in the input file:
input = new TextFile(fileName, ";").listIterator(1);
}
@Override
public Input next() {

2
enumerated/VendingMachineInput.txt → enums/VendingMachineInput.txt
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@ -1,4 +1,4 @@
//: enumerated/VendingMachineInput.txt
//: enums/VendingMachineInput.txt
QUARTER; QUARTER; QUARTER; CHIPS;
DOLLAR; DOLLAR; TOOTHPASTE;
QUARTER; DIME; ABORT_TRANSACTION;

40
enums/build.xml Normal file
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@ -0,0 +1,40 @@
<?xml version="1.0" ?>
<project default="run">
<property name="chapter" value="enums"/>
<property name="excludedfiles" value=""/>
<import file="../Ant-Common.xml"/>
<import file="../Ant-Clean.xml"/>
<target name="run" description="Compile and run" depends="build">
<jrun cls="BigEnumSet" />
<jrun cls="enums.Burrito" dirpath="../enums" />
<jrun cls="CarWash" />
<jrun cls="ConstantSpecificMethod" />
<jrun cls="EnumClass" />
<jrun cls="enums.EnumMaps" dirpath="../enums" />
<jrun cls="enums.EnumSets" dirpath="../enums" />
<jrun cls="NonEnum" />
<jrun cls="OverrideConstantSpecific" />
<jrun cls="OzWitch" />
<jrun cls="PostOffice" />
<jrun cls="RandomTest" />
<jrun cls="Reflection" />
<jrun cls="enums.RoShamBo1" dirpath="../enums" />
<jrun cls="enums.RoShamBo2" dirpath="../enums" />
<jrun cls="enums.RoShamBo3" dirpath="../enums" />
<jrun cls="enums.RoShamBo4" dirpath="../enums" />
<jrun cls="enums.RoShamBo5" dirpath="../enums" />
<jrun cls="enums.RoShamBo6" dirpath="../enums" />
<jrun cls="SecurityCategory" />
<jrun cls="SpaceShip" />
<jrun cls="TrafficLight" />
<jrun cls="UpcastEnum" />
<jrun cls="VendingMachine" arguments="VendingMachineInput.txt" />
<jrun cls="enums.cartoons.EnumImplementation" dirpath="../enums/cartoons" />
<jrun cls="enums.menu.Meal" dirpath="../enums/menu" />
<jrun cls="enums.menu.Meal2" dirpath="../enums/menu" />
<jrun cls="enums.menu.TypeOfFood" dirpath="../enums/menu" />
</target>
</project>

5
enumerated/cartoons/EnumImplementation.java → enums/cartoons
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@ -1,7 +1,7 @@
//: enumerated/cartoons/EnumImplementation.java
//: enums/cartoons/EnumImplementation.java
// Š2015 MindView LLC: see Copyright.txt
// An enum can implement an interface
package enumerated.cartoons;
package enums.cartoons;
import java.util.*;
import net.mindview.util.*;
@ -28,3 +28,4 @@ public class EnumImplementation {
} /* Output:
BOB, PUNCHY, BOB, SPANKY, NUTTY, PUNCHY, SLAPPY, NUTTY, NUTTY, SLAPPY,
*///:~


139
enums/menu Normal file
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@ -0,0 +1,139 @@
//: enums/menu/Course.java
// ©2015 MindView LLC: see Copyright.txt
package enums.menu;
import net.mindview.util.*;
public enum Course {
APPETIZER(Food.Appetizer.class),
MAINCOURSE(Food.MainCourse.class),
DESSERT(Food.Dessert.class),
COFFEE(Food.Coffee.class);
private Food[] values;
private Course(Class<? extends Food> kind) {
values = kind.getEnumConstants();
}
public Food randomSelection() {
return Enums.random(values);
}
} ///:~
//: enums/menu/Food.java
// ©2015 MindView LLC: see Copyright.txt
// Subcategorization of enums within interfaces.
package enums.menu;
public interface Food {
enum Appetizer implements Food {
SALAD, SOUP, SPRING_ROLLS;
}
enum MainCourse implements Food {
LASAGNE, BURRITO, PAD_THAI,
LENTILS, HUMMOUS, VINDALOO;
}
enum Dessert implements Food {
TIRAMISU, GELATO, BLACK_FOREST_CAKE,
FRUIT, CREME_CARAMEL;
}
enum Coffee implements Food {
BLACK_COFFEE, DECAF_COFFEE, ESPRESSO,
LATTE, CAPPUCCINO, TEA, HERB_TEA;
}
} ///:~
//: enums/menu/Meal.java
// ©2015 MindView LLC: see Copyright.txt
package enums.menu;
public class Meal {
public static void main(String[] args) {
for(int i = 0; i < 5; i++) {
for(Course course : Course.values()) {
Food food = course.randomSelection();
System.out.println(food);
}
System.out.println("---");
}
}
} /* Output:
SPRING_ROLLS
VINDALOO
FRUIT
DECAF_COFFEE
---
SOUP
VINDALOO
FRUIT
TEA
---
SALAD
BURRITO
FRUIT
TEA
---
SALAD
BURRITO
CREME_CARAMEL
LATTE
---
SOUP
BURRITO
TIRAMISU
ESPRESSO
---
*///:~
//: enums/menu/Meal2.java
// ©2015 MindView LLC: see Copyright.txt
package enums.menu;
import net.mindview.util.*;
public enum Meal2 {
APPETIZER(Food.Appetizer.class),
MAINCOURSE(Food.MainCourse.class),
DESSERT(Food.Dessert.class),
COFFEE(Food.Coffee.class);
private Food[] values;
private Meal2(Class<? extends Food> kind) {
values = kind.getEnumConstants();
}
public interface Food {
enum Appetizer implements Food {
SALAD, SOUP, SPRING_ROLLS;
}
enum MainCourse implements Food {
LASAGNE, BURRITO, PAD_THAI,
LENTILS, HUMMOUS, VINDALOO;
}
enum Dessert implements Food {
TIRAMISU, GELATO, BLACK_FOREST_CAKE,
FRUIT, CREME_CARAMEL;
}
enum Coffee implements Food {
BLACK_COFFEE, DECAF_COFFEE, ESPRESSO,
LATTE, CAPPUCCINO, TEA, HERB_TEA;
}
}
public Food randomSelection() {
return Enums.random(values);
}
public static void main(String[] args) {
for(int i = 0; i < 5; i++) {
for(Meal2 meal : Meal2.values()) {
Food food = meal.randomSelection();
System.out.println(food);
}
System.out.println("---");
}
}
} /* Same output as Meal.java *///:~
//: enums/menu/TypeOfFood.java
// ©2015 MindView LLC: see Copyright.txt
package enums.menu;
import static enums.menu.Food.*;
public class TypeOfFood {
public static void main(String[] args) {
Food food = Appetizer.SALAD;
food = MainCourse.LASAGNE;
food = Dessert.GELATO;
food = Coffee.CAPPUCCINO;
}
} ///:~