Obtain a clone of this object. For a mutable object, this should return a copy of the object. For an immutable object, it is acceptable to return the object itself.

The first element returned by the iterator, if any, of null if the iterable object is empty.

The hash value of the value, which allows the value to be an element of a hash-based set or key of a hash-based map. Implementations must respect the constraint that if x==y then x.hash==y.hash.

The last element returned by the iterator, if any, of null if the iterable object is empty. Iterable objects are potentially infinite, so calling this might never return; also, this implementation will iterate through all the elements, which might be very time-consuming.

The index of the last element of the list, or null if the list is empty.

Returns an iterable object containing all but the first element of this container.

Returns a List with the elements of this List in reverse order. This operation will create copy the elements to a new List, so changes to the original Iterable will no longer be reflected in the new List.

Determine if two values are equal. Implementations should respect the constraints that:

• if x===y then x==y (reflexivity),
• if x==y then y==x (symmetry),
• if x==y and y==z then x==z (transitivity).

Furthermore it is recommended that implementations ensure that if x==y then x and y have the same concrete class.

The last element which satisfies the given predicate, if any, or null otherwise.

Returns the value defined for the given key, or null if there is no value defined for the given key.

An iterator for the elements belonging to this container.

Obtain a segment containing the mapped values starting from the given index, with the given length.

Obtain a span containing the mapped values between the two given indices.

Obtain a span containing the mapped values between the starting index and the end of the receiver.

Obtain a span containing the mapped values between the start of the receiver and the end index.