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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain. Use, modify, and |
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* redistribute this code in any way without acknowledgement. |
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*/ |
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package java.util; |
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/** |
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* element based on offer, poll, and peek, respectively but that throw |
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* exceptions instead of indicating failure via false or null returns. |
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* The provided implementations all assume that the base implementation |
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* does <em>not</em> allow null elements. |
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* does <em>not</em> allow <tt>null</tt> elements. |
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* @since 1.5 |
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* @author Doug Lea |
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*/ |
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public abstract class AbstractQueue<E> extends AbstractCollection<E> implements Queue<E> { |
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public boolean add(E x) { |