FilesExpand file tree

 master

/

PetCount.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

executable file

·

59 lines (58 loc) · 1.83 KB

 master

/

PetCount.java

Copy path

Top

File metadata and controls

• Code
• Blame

executable file

·

59 lines (58 loc) · 1.83 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

//: typeinfo/PetCount.java

package typeinfo; /* Added by Eclipse.py */

// Using instanceof.

import typeinfo.pets.*;

import java.util.*;

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

public class PetCount {

static class PetCounter extends HashMap<String,Integer> {

public void count(String type) {

Integer quantity = get(type);

if(quantity == null)

put(type, 1);

else

put(type, quantity + 1);

}

}

public static void

countPets(PetCreator creator) {

PetCounter counter= new PetCounter();

for(Pet pet : creator.createArray(20)) {

// List each individual pet:

printnb(pet.getClass().getSimpleName() + " ");

if(pet instanceof Pet)

counter.count("Pet");

if(pet instanceof Dog)

counter.count("Dog");

if(pet instanceof Mutt)

counter.count("Mutt");

if(pet instanceof Pug)

counter.count("Pug");

if(pet instanceof Cat)

counter.count("Cat");

if(pet instanceof Manx)

counter.count("EgyptianMau");

if(pet instanceof Manx)

counter.count("Manx");

if(pet instanceof Manx)

counter.count("Cymric");

if(pet instanceof Rodent)

counter.count("Rodent");

if(pet instanceof Rat)

counter.count("Rat");

if(pet instanceof Mouse)

counter.count("Mouse");

if(pet instanceof Hamster)

counter.count("Hamster");

}

// Show the counts:

print();

print(counter);

}

public static void main(String[] args) {

countPets(new ForNameCreator());

}

} /* Output:

Rat Manx Cymric Mutt Pug Cymric Pug Manx Cymric Rat EgyptianMau Hamster EgyptianMau Mutt Mutt Cymric Mouse Pug Mouse Cymric

{Pug=3, Cat=9, Hamster=1, Cymric=7, Mouse=2, Mutt=3, Rodent=5, Pet=20, Manx=7, EgyptianMau=7, Dog=6, Rat=2}

*///:~