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@@ -104,11 +104,6 @@ public class ChainQueue<E> implements Queue<E> { |
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return temp; |
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} |
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@Override |
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public E element() { |
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return null; |
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} |
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@Override |
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public E peek() { // only "see" into the queue and do not remove anything |
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if (!this.isEmpty()) { |
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@@ -119,6 +114,11 @@ public class ChainQueue<E> implements Queue<E> { |
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/*** the following is not implemented because it's not needed here ***/ |
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@Override |
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public E element() { |
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return null; |
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} |
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@Override |
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public Iterator<E> iterator() { |
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return null; |
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