📄 collection.java
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/* * Java core library component. * * Copyright (c) 1997, 1998 * Transvirtual Technologies, Inc. All rights reserved. * * See the file "license.terms" for information on usage and redistribution * of this file. */package java.util;public interface Collection {int size();boolean isEmpty();boolean contains(Object o);Iterator iterator();Object[] toArray();Object[] toArray(Object[] a);boolean add(Object o);boolean remove(Object o);boolean containsAll(Collection c);boolean addAll(Collection c);boolean removeAll(Collection c);boolean retainAll(Collection c);void clear();boolean equals(Object o);int hashCode();}
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