42 lines
1.2 KiB
Java
42 lines
1.2 KiB
Java
package com.iluwatar;
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/**
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*
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* Iterator (ItemIterator) adds abstraction layer on top of a collection
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* (TreasureChest). This way the collection can change its internal
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* implementation without affecting its clients.
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*
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*/
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public class App {
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public static void main(String[] args) {
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TreasureChest chest = new TreasureChest();
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ItemIterator ringIterator = chest.Iterator(ItemType.RING);
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while (ringIterator.hasNext()) {
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System.out.println(ringIterator.next());
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}
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System.out.println("----------");
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ItemIterator potionIterator = chest.Iterator(ItemType.POTION);
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while (potionIterator.hasNext()) {
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System.out.println(potionIterator.next());
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}
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System.out.println("----------");
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ItemIterator weaponIterator = chest.Iterator(ItemType.WEAPON);
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while (weaponIterator.hasNext()) {
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System.out.println(weaponIterator.next());
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}
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System.out.println("----------");
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ItemIterator it = chest.Iterator(ItemType.ANY);
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while (it.hasNext()) {
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System.out.println(it.next());
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}
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}
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}
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