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- package java.util;
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- public interface Set<E> extends Collection<E> {
- int size();
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- boolean isEmpty();
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- boolean contains(Object var1);
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- Iterator<E> iterator();
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- Object[] toArray();
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- <T> T[] toArray(T[] var1);
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- boolean add(E var1);
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- boolean remove(Object var1);
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- boolean containsAll(Collection<?> var1);
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- boolean addAll(Collection<? extends E> var1);
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- boolean retainAll(Collection<?> var1);
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- boolean removeAll(Collection<?> var1);
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- void clear();
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- boolean equals(Object var1);
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- int hashCode();
- }
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