/**
* Removes the element at the specified index, and returns it.
*
* @param index the position from which to remove the element
* @return the object removed
* @throws ArrayIndexOutOfBoundsException index < 0 || index >= size()
* @since 1.2
*/
public synchronized Object remove(int index) {
checkBoundExclusive(index);
Object temp = elementData[index];
modCount++;
elementCount--;
if (index < elementCount)
System.arraycopy(elementData, index + 1, elementData, index, elementCount - index);
elementData[elementCount] = null;
return temp;
}
/**
* Returns the Object stored at <code>index</code>.
*
* @param index the index of the Object to retrieve
* @return the object at <code>index</code>
* @throws ArrayIndexOutOfBoundsException index < 0 || index >= size()
* @see #get(int)
*/
public synchronized Object elementAt(int index) {
checkBoundExclusive(index);
return elementData[index];
}
/**
* Puts <code>element</code> into the Vector at position <code>index</code> and returns the Object
* that previously occupied that position.
*
* @param index the index within the Vector to place the Object
* @param element the Object to store in the Vector
* @return the previous object at the specified index
* @throws ArrayIndexOutOfBoundsException index < 0 || index >= size()
* @since 1.2
*/
public synchronized Object set(int index, Object element) {
checkBoundExclusive(index);
Object temp = elementData[index];
elementData[index] = element;
return temp;
}
/**
* Returns the index of the first occurrence of <code>elem</code>, when searching backwards from
* <code>index</code>. If the object does not occur in this Vector, or index is less than 0, -1 is
* returned.
*
* @param e the object to search for
* @param index the index to start searching in reverse from
* @return the index of the Object if found, -1 otherwise
* @throws IndexOutOfBoundsException if index >= size()
*/
public synchronized int lastIndexOf(Object e, int index) {
checkBoundExclusive(index);
for (int i = index; i >= 0; i--) if (equals(e, elementData[i])) return i;
return -1;
}