232 |
|
* this list, in the order that they are returned by the specified |
233 |
|
* collection's iterator. The behavior of this operation is undefined if |
234 |
|
* the specified collection is modified while the operation is in |
235 |
< |
* progress. (This implies that the behavior of this call is undefined if |
236 |
< |
* the specified Collection is this list, and this list is nonempty.) |
235 |
> |
* progress. (Note that this will occur if the specified collection is |
236 |
> |
* this list, and it's nonempty.) |
237 |
|
* |
238 |
< |
* @param c the elements to be inserted into this list |
238 |
> |
* @param c collection containing elements to be added to this list |
239 |
|
* @return <tt>true</tt> if this list changed as a result of the call |
240 |
|
* @throws NullPointerException if the specified collection is null |
241 |
|
*/ |
253 |
|
* |
254 |
|
* @param index index at which to insert the first element |
255 |
|
* from the specified collection |
256 |
< |
* @param c elements to be inserted into this list |
256 |
> |
* @param c collection containing elements to be added to this list |
257 |
|
* @return <tt>true</tt> if this list changed as a result of the call |
258 |
|
* @throws IndexOutOfBoundsException {@inheritDoc} |
259 |
|
* @throws NullPointerException if the specified collection is null |
375 |
|
// Search Operations |
376 |
|
|
377 |
|
/** |
378 |
< |
* Returns the index in this list of the first occurrence of the |
379 |
< |
* specified element, or -1 if the List does not contain this |
380 |
< |
* element. More formally, returns the lowest index i such that |
381 |
< |
* <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt>, or -1 if |
382 |
< |
* there is no such index. |
378 |
> |
* Returns the index of the first occurrence of the specified element |
379 |
> |
* in this list, or -1 if this list does not contain the element. |
380 |
> |
* More formally, returns the lowest index <tt>i</tt> such that |
381 |
> |
* <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt>, |
382 |
> |
* or -1 if there is no such index. |
383 |
|
* |
384 |
|
* @param o element to search for |
385 |
< |
* @return the index in this list of the first occurrence of the |
386 |
< |
* specified element, or -1 if the list does not contain this |
387 |
< |
* element |
385 |
> |
* @return the index of the first occurrence of the specified element in |
386 |
> |
* this list, or -1 if this list does not contain the element |
387 |
|
*/ |
388 |
|
public int indexOf(Object o) { |
389 |
|
int index = 0; |
404 |
|
} |
405 |
|
|
406 |
|
/** |
407 |
< |
* Returns the index in this list of the last occurrence of the |
408 |
< |
* specified element, or -1 if the list does not contain this |
409 |
< |
* element. More formally, returns the highest index i such that |
410 |
< |
* <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt>, or -1 if |
411 |
< |
* there is no such index. |
407 |
> |
* Returns the index of the last occurrence of the specified element |
408 |
> |
* in this list, or -1 if this list does not contain the element. |
409 |
> |
* More formally, returns the highest index <tt>i</tt> such that |
410 |
> |
* <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt>, |
411 |
> |
* or -1 if there is no such index. |
412 |
|
* |
413 |
|
* @param o element to search for |
414 |
< |
* @return the index in this list of the last occurrence of the |
415 |
< |
* specified element, or -1 if the list does not contain this |
417 |
< |
* element |
414 |
> |
* @return the index of the last occurrence of the specified element in |
415 |
> |
* this list, or -1 if this list does not contain the element |
416 |
|
*/ |
417 |
|
public int lastIndexOf(Object o) { |
418 |
|
int index = size; |
621 |
|
*/ |
622 |
|
public boolean removeLastOccurrence(Object o) { |
623 |
|
if (o==null) { |
624 |
< |
for (Entry e = header.previous; e != header; e = e.previous) { |
624 |
> |
for (Entry<E> e = header.previous; e != header; e = e.previous) { |
625 |
|
if (e.element==null) { |
626 |
|
remove(e); |
627 |
|
return true; |
628 |
|
} |
629 |
|
} |
630 |
|
} else { |
631 |
< |
for (Entry e = header.previous; e != header; e = e.previous) { |
631 |
> |
for (Entry<E> e = header.previous; e != header; e = e.previous) { |
632 |
|
if (o.equals(e.element)) { |
633 |
|
remove(e); |
634 |
|
return true; |
822 |
|
|
823 |
|
/** |
824 |
|
* Returns an array containing all of the elements in this list |
825 |
< |
* in the correct order. |
825 |
> |
* in proper sequence (from first to last element). |
826 |
> |
* |
827 |
> |
* <p>The returned array will be "safe" in that no references to it are |
828 |
> |
* maintained by this list. (In other words, this method must allocate |
829 |
> |
* a new array). The caller is thus free to modify the returned array. |
830 |
> |
* |
831 |
> |
* <p>This method acts as bridge between array-based and collection-based |
832 |
> |
* APIs. |
833 |
|
* |
834 |
|
* @return an array containing all of the elements in this list |
835 |
< |
* in the correct order |
835 |
> |
* in proper sequence |
836 |
|
*/ |
837 |
|
public Object[] toArray() { |
838 |
|
Object[] result = new Object[size]; |
844 |
|
|
845 |
|
/** |
846 |
|
* Returns an array containing all of the elements in this list in |
847 |
< |
* the correct order; the runtime type of the returned array is that of |
848 |
< |
* the specified array. If the list fits in the specified array, it |
849 |
< |
* is returned therein. Otherwise, a new array is allocated with the |
850 |
< |
* runtime type of the specified array and the size of this list.<p> |
851 |
< |
* |
852 |
< |
* If the list fits in the specified array with room to spare |
853 |
< |
* (i.e., the array has more elements than the list), |
854 |
< |
* the element in the array immediately following the end of the |
855 |
< |
* collection is set to null. This is useful in determining the length |
856 |
< |
* of the list <i>only</i> if the caller knows that the list |
857 |
< |
* does not contain any null elements. |
847 |
> |
* proper sequence (from first to last element); the runtime type of |
848 |
> |
* the returned array is that of the specified array. If the list fits |
849 |
> |
* in the specified array, it is returned therein. Otherwise, a new |
850 |
> |
* array is allocated with the runtime type of the specified array and |
851 |
> |
* the size of this list. |
852 |
> |
* |
853 |
> |
* <p>If the list fits in the specified array with room to spare (i.e., |
854 |
> |
* the array has more elements than the list), the element in the array |
855 |
> |
* immediately following the end of the list is set to <tt>null</tt>. |
856 |
> |
* (This is useful in determining the length of the list <i>only</i> if |
857 |
> |
* the caller knows that the list does not contain any null elements.) |
858 |
> |
* |
859 |
> |
* <p>Like the {@link #toArray()} method, this method acts as bridge between |
860 |
> |
* array-based and collection-based APIs. Further, this method allows |
861 |
> |
* precise control over the runtime type of the output array, and may, |
862 |
> |
* under certain circumstances, be used to save allocation costs. |
863 |
> |
* |
864 |
> |
* <p>Suppose <tt>x</tt> is a list known to contain only strings. |
865 |
> |
* The following code can be used to dump the list into a newly |
866 |
> |
* allocated array of <tt>String</tt>: |
867 |
> |
* |
868 |
> |
* <pre> |
869 |
> |
* String[] y = x.toArray(new String[0]);</pre> |
870 |
> |
* |
871 |
> |
* Note that <tt>toArray(new Object[0])</tt> is identical in function to |
872 |
> |
* <tt>toArray()</tt>. |
873 |
|
* |
874 |
|
* @param a the array into which the elements of the list are to |
875 |
|
* be stored, if it is big enough; otherwise, a new array of the |
876 |
|
* same runtime type is allocated for this purpose. |
877 |
|
* @return an array containing the elements of the list |
878 |
< |
* @throws ArrayStoreException if the runtime type of a is not a |
879 |
< |
* supertype of the runtime type of every element in this list |
878 |
> |
* @throws ArrayStoreException if the runtime type of the specified array |
879 |
> |
* is not a supertype of the runtime type of every element in |
880 |
> |
* this list |
881 |
|
* @throws NullPointerException if the specified array is null |
882 |
|
*/ |
883 |
|
public <T> T[] toArray(T[] a) { |