Appends the specified element to the end of this Vector.

  Appends the specified element to the end of this Vector.
Returns: {@code true} (as specified by {@link Collection#add})
Parameters:
- e - element to be appended to this Vector
Since: 1.2

  Inserts the specified element at the specified position in this Vector.

  Inserts the specified element at the specified position in this Vector.
Shifts the element currently at that position (if any) and any
subsequent elements to the right (adds one to their indices).
Parameters:
- index - index at which the specified element is to be inserted
- element - element to be inserted
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index > size()})
Since: 1.2

  Appends all of the elements in the specified Collection to the end of this Vector, in the order that they are returned by the specified Collection's Iterator.

  Appends all of the elements in the specified Collection to the end of
this Vector, in the order that they are returned by the specified
Collection's Iterator. The behavior of this operation is undefined if
the specified Collection is modified while the operation is in progress.
(This implies that the behavior of this call is undefined if the
specified Collection is this Vector, and this Vector is nonempty.)
Returns: {@code true} if this Vector changed as a result of the call
Parameters:
- c - elements to be inserted into this Vector
Throws:
- NullPointerException - if the specified collection is null
Since: 1.2

  Inserts all of the elements in the specified Collection into this Vector at the specified position.

  Inserts all of the elements in the specified Collection into this
Vector at the specified position. Shifts the element currently at
that position (if any) and any subsequent elements to the right
(increases their indices). The new elements will appear in the Vector
in the order that they are returned by the specified Collection's
iterator.
Returns: {@code true} if this Vector changed as a result of the call
Parameters:
- index - index at which to insert the first element from the specified collection
- c - elements to be inserted into this Vector
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index > size()})
- NullPointerException - if the specified collection is null
Since: 1.2

  Adds the specified component to the end of this vector, increasing its size by one.

  Adds the specified component to the end of this vector, increasing its size by one. The capacity of this vector is increased if its size becomes greater than its capacity.

This method is identical in functionality to the add(E) method (which is part of the List interface).
Parameters:
- obj - the component to be added

  Returns the current capacity of this vector.

  Returns the current capacity of this vector.
Returns: the current capacity (the length of its internal data array, kept in the field {@code elementData} of this vector)

  Removes all of the elements from this Vector.

  Removes all of the elements from this Vector. The Vector will
be empty after this call returns (unless it throws an exception).
Since: 1.2

  Returns a clone of this vector.

  Returns a clone of this vector. The copy will contain a
reference to a clone of the internal data array, not a reference
to the original internal data array of this Vector object.
Returns: a clone of this vector

  Returns true if this vector contains the specified element.

  Returns true if this vector contains the specified element.
More formally, returns true if and only if this vector
contains at least one element e such that
(o==null ? e==null : o.equals(e)).
Returns: {@code true} if this vector contains the specified element
Parameters:
- o - element whose presence in this vector is to be tested

  Returns true if this Vector contains all of the elements in the specified Collection.

  Returns true if this Vector contains all of the elements in the
specified Collection.
Returns: true if this Vector contains all of the elements in the specified collection
Parameters:
- c - a collection whose elements will be tested for containment in this Vector
Throws:
- NullPointerException - if the specified collection is null

  Copies the components of this vector into the specified array.

  Copies the components of this vector into the specified array.
The item at index k in this vector is copied into
component k of anArray.
Parameters:
- anArray - the array into which the components get copied
Throws:
- NullPointerException - if the given array is null
- IndexOutOfBoundsException - if the specified array is not large enough to hold all the components of this vector
- ArrayStoreException - if a component of this vector is not of a runtime type that can be stored in the specified array
See Also: Vector.toArray(Object[]),

  Returns the component at the specified index.

  Returns the component at the specified index.

This method is identical in functionality to the Vector.get(int) method (which is part of the List interface).
Returns: the component at the specified index
Parameters:
- index - an index into this vector
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index >= size()})

  Returns an enumeration of the components of this vector.

  Returns an enumeration of the components of this vector. The
returned Enumeration object will generate all items in
this vector. The first item generated is the item at index 0,
then the item at index 1, and so on.
Returns: an enumeration of the components of this vector
See Also: Iterator,

  Increases the capacity of this vector, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.

  Increases the capacity of this vector, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.

If the current capacity of this vector is less than minCapacity, then its capacity is increased by replacing its internal data array, kept in the field elementData, with a larger one. The size of the new data array will be the old size plus capacityIncrement, unless the value of capacityIncrement is less than or equal to zero, in which case the new capacity will be twice the old capacity; but if this new size is still smaller than minCapacity, then the new capacity will be minCapacity.
Parameters:
- minCapacity - the desired minimum capacity

  Compares the specified Object with this Vector for equality.

  Compares the specified Object with this Vector for equality. Returns
true if and only if the specified Object is also a List, both Lists
have the same size, and all corresponding pairs of elements in the two
Lists are equal. (Two elements e1 and
e2 are equal if (e1==null ? e2==null :
e1.equals(e2)).) In other words, two Lists are defined to be
equal if they contain the same elements in the same order.
Returns: true if the specified Object is equal to this Vector
Parameters:
- o - the Object to be compared for equality with this Vector

  Returns the first component (the item at index 0) of this vector.

  Returns the first component (the item at index 0) of
this vector.
Returns: the first component of this vector
Throws:
- NoSuchElementException - if this vector has no components

  Returns the element at the specified position in this Vector.

  Returns the element at the specified position in this Vector.
Returns: object at the specified index
Parameters:
- index - index of the element to return
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index >= size()})
Since: 1.2

Returns the hash code value for this Vector.

  Returns the index of the first occurrence of the specified element in this vector, or -1 if this vector does not contain the element.

  Returns the index of the first occurrence of the specified element
in this vector, or -1 if this vector does not contain the element.
More formally, returns the lowest index i such that
(o==null ? get(i)==null : o.equals(get(i))),
or -1 if there is no such index.
Returns: the index of the first occurrence of the specified element in this vector, or -1 if this vector does not contain the element
Parameters:
- o - element to search for

  Returns the index of the first occurrence of the specified element in this vector, searching forwards from index, or returns -1 if the element is not found.

  Returns the index of the first occurrence of the specified element in
this vector, searching forwards from index, or returns -1 if
the element is not found.
More formally, returns the lowest index i such that
(i >= index && (o==null ? get(i)==null : o.equals(get(i)))),
or -1 if there is no such index.
Returns: the index of the first occurrence of the element in this vector at position {@code index} or later in the vector; {@code -1} if the element is not found.
Parameters:
- o - element to search for
- index - index to start searching from
Throws:
- IndexOutOfBoundsException - if the specified index is negative
See Also: Object.equals(Object),

  Inserts the specified object as a component in this vector at the specified index.

  Inserts the specified object as a component in this vector at the specified index. Each component in this vector with an index greater or equal to the specified index is shifted upward to have an index one greater than the value it had previously.

The index must be a value greater than or equal to 0 and less than or equal to the current size of the vector. (If the index is equal to the current size of the vector, the new element is appended to the Vector.)

This method is identical in functionality to the add(int, E) method (which is part of the List interface). Note that the add method reverses the order of the parameters, to more closely match array usage.
Parameters:
- obj - the component to insert
- index - where to insert the new component
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index > size()})

  Tests if this vector has no components.

  Tests if this vector has no components.
Returns: {@code true} if and only if this vector has no components, that is, its size is zero; {@code false} otherwise.

  Returns the last component of the vector.

  Returns the last component of the vector.
Returns: the last component of the vector, i.e., the component at index size() - 1.
Throws:
- NoSuchElementException - if this vector is empty

  Returns the index of the last occurrence of the specified element in this vector, or -1 if this vector does not contain the element.

  Returns the index of the last occurrence of the specified element
in this vector, or -1 if this vector does not contain the element.
More formally, returns the highest index i such that
(o==null ? get(i)==null : o.equals(get(i))),
or -1 if there is no such index.
Returns: the index of the last occurrence of the specified element in this vector, or -1 if this vector does not contain the element
Parameters:
- o - element to search for

  Returns the index of the last occurrence of the specified element in this vector, searching backwards from index, or returns -1 if the element is not found.

  Returns the index of the last occurrence of the specified element in
this vector, searching backwards from index, or returns -1 if
the element is not found.
More formally, returns the highest index i such that
(i <= index && (o==null ? get(i)==null : o.equals(get(i)))),
or -1 if there is no such index.
Returns: the index of the last occurrence of the element at position less than or equal to {@code index} in this vector; -1 if the element is not found.
Parameters:
- o - element to search for
- index - index to start searching backwards from
Throws:
- IndexOutOfBoundsException - if the specified index is greater than or equal to the current size of this vector

  Removes the element at the specified position in this Vector.

  Removes the element at the specified position in this Vector.
Shifts any subsequent elements to the left (subtracts one from their
indices). Returns the element that was removed from the Vector.
Returns: element that was removed
Parameters:
- index - the index of the element to be removed
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index >= size()})
Since: 1.2

  Removes the first occurrence of the specified element in this Vector If the Vector does not contain the element, it is unchanged.

  Removes the first occurrence of the specified element in this Vector
If the Vector does not contain the element, it is unchanged. More
formally, removes the element with the lowest index i such that
(o==null ? get(i)==null : o.equals(get(i))) (if such
an element exists).
Returns: true if the Vector contained the specified element
Parameters:
- o - element to be removed from this Vector, if present
Since: 1.2

  Removes from this Vector all of its elements that are contained in the specified Collection.

  Removes from this Vector all of its elements that are contained in the
specified Collection.
Returns: true if this Vector changed as a result of the call
Parameters:
- c - a collection of elements to be removed from the Vector
Throws:
- ClassCastException - if the types of one or more elements in this vector are incompatible with the specified collection (optional)
- NullPointerException - if this vector contains one or more null elements and the specified collection does not support null elements (optional), or if the specified collection is null
Since: 1.2

  Removes all components from this vector and sets its size to zero.

  Removes all components from this vector and sets its size to zero.

This method is identical in functionality to the Vector.clear() method (which is part of the List interface).

  Removes the first (lowest-indexed) occurrence of the argument from this vector.

  Removes the first (lowest-indexed) occurrence of the argument from this vector. If the object is found in this vector, each component in the vector with an index greater or equal to the object's index is shifted downward to have an index one smaller than the value it had previously.

This method is identical in functionality to the Vector.remove(Object) method (which is part of the List interface).
Returns: {@code true} if the argument was a component of this vector; {@code false} otherwise.
Parameters:
- obj - the component to be removed

  Deletes the component at the specified index.

  Deletes the component at the specified index. Each component in this vector with an index greater or equal to the specified index is shifted downward to have an index one smaller than the value it had previously. The size of this vector is decreased by 1.

The index must be a value greater than or equal to 0 and less than the current size of the vector.

This method is identical in functionality to the Vector.remove(int) method (which is part of the List interface). Note that the remove method returns the old value that was stored at the specified position.
Parameters:
- index - the index of the object to remove
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index >= size()})

  Removes from this List all of the elements whose index is between fromIndex, inclusive and toIndex, exclusive.

  Removes from this List all of the elements whose index is between
fromIndex, inclusive and toIndex, exclusive. Shifts any succeeding
elements to the left (reduces their index).
This call shortens the ArrayList by (toIndex - fromIndex) elements. (If
toIndex==fromIndex, this operation has no effect.)
Parameters:
- fromIndex - index of first element to be removed
- toIndex - index after last element to be removed

  Retains only the elements in this Vector that are contained in the specified Collection.

  Retains only the elements in this Vector that are contained in the
specified Collection. In other words, removes from this Vector all
of its elements that are not contained in the specified Collection.
Returns: true if this Vector changed as a result of the call
Parameters:
- c - a collection of elements to be retained in this Vector (all other elements are removed)
Throws:
- ClassCastException - if the types of one or more elements in this vector are incompatible with the specified collection (optional)
- NullPointerException - if this vector contains one or more null elements and the specified collection does not support null elements (optional), or if the specified collection is null
Since: 1.2

  Replaces the element at the specified position in this Vector with the specified element.

  Replaces the element at the specified position in this Vector with the
specified element.
Returns: the element previously at the specified position
Parameters:
- index - index of the element to replace
- element - element to be stored at the specified position
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index >= size()})
Since: 1.2

  Sets the component at the specified index of this vector to be the specified object.

  Sets the component at the specified index of this vector to be the specified object. The previous component at that position is discarded.

The index must be a value greater than or equal to 0 and less than the current size of the vector.

This method is identical in functionality to the set(int, E) method (which is part of the List interface). Note that the set method reverses the order of the parameters, to more closely match array usage. Note also that the set method returns the old value that was stored at the specified position.
Parameters:
- obj - what the component is to be set to
- index - the specified index
Throws:
- ArrayIndexOutOfBoundsException - if the index is out of range ({@code index < 0 || index >= size()})

  Sets the size of this vector.

  Sets the size of this vector. If the new size is greater than the
current size, new null items are added to the end of
the vector. If the new size is less than the current size, all
components at index newSize and greater are discarded.
Parameters:
- newSize - the new size of this vector
Throws:
- ArrayIndexOutOfBoundsException - if the new size is negative

  Returns the number of components in this vector.

  Returns the number of components in this vector.
Returns: the number of components in this vector

  Returns a view of the portion of this List between fromIndex, inclusive, and toIndex, exclusive.

  Returns a view of the portion of this List between fromIndex, inclusive, and toIndex, exclusive. (If fromIndex and toIndex are equal, the returned List is empty.) The returned List is backed by this List, so changes in the returned List are reflected in this List, and vice-versa. The returned List supports all of the optional List operations supported by this List.

This method eliminates the need for explicit range operations (of the sort that commonly exist for arrays). Any operation that expects a List can be used as a range operation by operating on a subList view instead of a whole List. For example, the following idiom removes a range of elements from a List:

            list.subList(from, to).clear();
 

Similar idioms may be constructed for indexOf and lastIndexOf, and all of the algorithms in the Collections class can be applied to a subList.

The semantics of the List returned by this method become undefined if the backing list (i.e., this List) is structurally modified in any way other than via the returned List. (Structural modifications are those that change the size of the List, or otherwise perturb it in such a fashion that iterations in progress may yield incorrect results.)
Returns: a view of the specified range within this List
Parameters:
- fromIndex - low endpoint (inclusive) of the subList
- toIndex - high endpoint (exclusive) of the subList
Throws:
- IndexOutOfBoundsException - if an endpoint index value is out of range {@code (fromIndex < 0 || toIndex > size)}
- IllegalArgumentException - if the endpoint indices are out of order {@code (fromIndex > toIndex)}

  Returns an array containing all of the elements in this Vector in the correct order.

  Returns an array containing all of the elements in this Vector
in the correct order.
Since: 1.2

  Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.

  Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array. If the Vector fits in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this Vector.

If the Vector fits in the specified array with room to spare (i.e., the array has more elements than the Vector), the element in the array immediately following the end of the Vector is set to null. (This is useful in determining the length of the Vector only if the caller knows that the Vector does not contain any null elements.)
Returns: an array containing the elements of the Vector
Parameters:
- a - the array into which the elements of the Vector are to be stored, if it is big enough; otherwise, a new array of the same runtime type is allocated for this purpose.
Throws:
- ArrayStoreException - if the runtime type of a is not a supertype of the runtime type of every element in this Vector
- NullPointerException - if the given array is null
Since: 1.2

Returns a string representation of this Vector, containing the String representation of each element.

  Trims the capacity of this vector to be the vector's current size.

  Trims the capacity of this vector to be the vector's current
size. If the capacity of this vector is larger than its current
size, then the capacity is changed to equal the size by replacing
its internal data array, kept in the field elementData,
with a smaller one. An application can use this operation to
minimize the storage of a vector.