MultiIterableClass.java

package thinkinginjava.holding;

// Adding several Adapter Methods.
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Random;

public class MultiIterableClass extends IterableClass {
	public Iterable<String> reversed() {
		return new Iterable<String>() {
			public Iterator<String> iterator() {
				return new Iterator<String>() {
					int current = words.length - 1;

					public boolean hasNext() {
						return current > -1;
					}

					public String next() {
						return words[current--];
					}

					public void remove() { // Not implemented
						throw new UnsupportedOperationException();
					}
				};
			}
		};
	}

	public Iterable<String> randomized() {
		return new Iterable<String>() {
			public Iterator<String> iterator() {
				List<String> shuffled = new ArrayList<String>(
						Arrays.asList(words));
				Collections.shuffle(shuffled, new Random(47));
				return shuffled.iterator();
			}
		};
	}

	public static void main(String[] args) {
		MultiIterableClass mic = new MultiIterableClass();
		for (String s : mic.reversed())
			System.out.print(s + " ");
		System.out.println();
		
		for (String s : mic.randomized())
			System.out.print(s + " ");
		System.out.println();
		
		for (String s : mic)
			System.out.print(s + " ");
	}
}