1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
281 */
282 public int lastIndexOf(Object o) {
283 if (o == null) {
284 for (int i = size-1; i >= 0; i--)
285 if (elementData[i]==null)
286 return i;
287 } else {
288 for (int i = size-1; i >= 0; i--)
289 if (o.equals(elementData[i]))
290 return i;
291 }
292 return -1;
293 }
294
295 /**
296 * Returns a shallow copy of this <tt>ArrayList</tt> instance. (The
297 * elements themselves are not copied.)
298 *
299 * @return a clone of this <tt>ArrayList</tt> instance
300 */
301 public Object clone() {
302 try {
303 @SuppressWarnings("unchecked")
304 ArrayList<E> v = (ArrayList<E>) super.clone();
305 v.elementData = Arrays.copyOf(elementData, size);
306 v.modCount = 0;
307 return v;
308 } catch (CloneNotSupportedException e) {
309 // this shouldn't happen, since we are Cloneable
310 throw new InternalError(e);
311 }
312 }
313
314 /**
315 * Returns an array containing all of the elements in this list
316 * in proper sequence (from first to last element).
317 *
318 * <p>The returned array will be "safe" in that no references to it are
319 * maintained by this list. (In other words, this method must allocate
320 * a new array). The caller is thus free to modify the returned array.
321 *
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1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
281 */
282 public int lastIndexOf(Object o) {
283 if (o == null) {
284 for (int i = size-1; i >= 0; i--)
285 if (elementData[i]==null)
286 return i;
287 } else {
288 for (int i = size-1; i >= 0; i--)
289 if (o.equals(elementData[i]))
290 return i;
291 }
292 return -1;
293 }
294
295 /**
296 * Returns a shallow copy of this <tt>ArrayList</tt> instance. (The
297 * elements themselves are not copied.)
298 *
299 * @return a clone of this <tt>ArrayList</tt> instance
300 */
301 @Override
302 public ArrayList<E> clone() {
303 try {
304 @SuppressWarnings("unchecked")
305 ArrayList<E> v = (ArrayList<E>) super.clone();
306 v.elementData = Arrays.copyOf(elementData, size);
307 v.modCount = 0;
308 return v;
309 } catch (CloneNotSupportedException e) {
310 // this shouldn't happen, since we are Cloneable
311 throw new InternalError(e);
312 }
313 }
314
315 /**
316 * Returns an array containing all of the elements in this list
317 * in proper sequence (from first to last element).
318 *
319 * <p>The returned array will be "safe" in that no references to it are
320 * maintained by this list. (In other words, this method must allocate
321 * a new array). The caller is thus free to modify the returned array.
322 *
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