forked from rawbenny/ThinkInJava4
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCollectionSequence.java
More file actions
executable file
·33 lines (31 loc) · 1020 Bytes
/
Copy pathCollectionSequence.java
File metadata and controls
executable file
·33 lines (31 loc) · 1020 Bytes
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
//: holding/CollectionSequence.java
package holding;
import java.util.AbstractCollection;
import java.util.Iterator;
import typeinfo.pets.Pet;
import typeinfo.pets.Pets;
public class CollectionSequence
extends AbstractCollection<Pet> {
private Pet[] pets = Pets.createArray(8);
public int size() { return pets.length; }
public Iterator<Pet> iterator() {
return new Iterator<Pet>() {
private int index = 0;
public boolean hasNext() {
return index < pets.length;
}
public Pet next() { return pets[index++]; }
public void remove() { // Not implemented
throw new UnsupportedOperationException();
}
};
}
public static void main(String[] args) {
CollectionSequence c = new CollectionSequence();
InterfaceVsIterator.display(c);
InterfaceVsIterator.display(c.iterator());
}
} /* Output:
0:Rat 1:Manx 2:Cymric 3:Mutt 4:Pug 5:Cymric 6:Pug 7:Manx
0:Rat 1:Manx 2:Cymric 3:Mutt 4:Pug 5:Cymric 6:Pug 7:Manx
*///:~