36 lines
1.0 KiB
Java
36 lines
1.0 KiB
Java
// collections/IterableClass.java
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// (c)2020 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Anything Iterable works with for-in
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import java.util.*;
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public class IterableClass implements Iterable<String> {
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protected String[] words = ("And that is how " +
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"we know the Earth to be banana-shaped."
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).split(" ");
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@Override
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public Iterator<String> iterator() {
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return new Iterator<String>() {
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private int index = 0;
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@Override
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public boolean hasNext() {
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return index < words.length;
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}
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@Override
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public String next() { return words[index++]; }
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@Override
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public void remove() { // Not implemented
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throw new UnsupportedOperationException();
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}
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};
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}
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public static void main(String[] args) {
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for(String s : new IterableClass())
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System.out.print(s + " ");
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}
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}
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/* Output:
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And that is how we know the Earth to be banana-shaped.
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*/
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