mirror of git://gcc.gnu.org/git/gcc.git
102 lines
2.6 KiB
Java
102 lines
2.6 KiB
Java
/* AbstractSet.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.util.*;
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/**
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* Empty
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*
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* @author Ronald Veldema (rveldema@cs.vu.nl)
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*/
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public abstract class AbstractSet extends AbstractCollection implements Set
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{
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boolean contained(Object []a1, Object b)
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{
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for (int i=0;i<a1.length;i++)
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{
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if (a1[i] == b)
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return true;
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}
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return false;
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}
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public boolean equals(Object o)
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{
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if (! (o instanceof AbstractSet))
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return false;
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AbstractSet s = (AbstractSet) o;
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if (s == this)
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return true;
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if (s.size() != size())
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return false;
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Object[] a1 = s.toArray();
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Object[] a2 = toArray();
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for (int i=0;i<a1.length;i++)
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{
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if (! contained(a2, a1[i]))
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return false;
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}
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return true;
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}
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public int hashCode()
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{
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int hash = 0;
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Object[] a1 = toArray();
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if (a1 == null)
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return 0;
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for (int i=0; i<a1.length; i++)
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{
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hash += a1[i].hashCode();
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}
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return hash;
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}
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public boolean removeAll(Collection c)
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{
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return false;
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}
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}
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