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27 lines
510 B
Java
27 lines
510 B
Java
class ElemIterator implements Iterator<MyElem>, Iterable<MyElem> {
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private MyElem[] data;
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private idx = 0;
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public boolean hasNext() {
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return idx < data.length;
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}
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public MyElem next() {
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return data[idx++];
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}
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public Iterator<MyElem> iterator() {
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return this;
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}
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// ...
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}
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void useMySequence(Iterable<MyElem> s) {
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// do some work by traversing the sequence
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for (MyElem e : s) {
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// ...
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}
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// do some more work by traversing it again
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for (MyElem e : s) {
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// ...
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}
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}
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