Returns <tt>true</tt> if this collection contains all of the elements
in the specified collection.
@param c collection to be checked for containment in this collection
@return <tt>true</tt> if this collection contains all of the elements
in the specified collection
@throws ClassCastException if the types of one or more elements
in the specified collection are incompatible with this
collection
(<a href="#optional-restrictions">optional</a>)
@throws NullPointerException if the specified collection contains one
or more null elements and this collection does not permit null
elements
(<a href="#optional-restrictions">optional</a>),
or if the specified collection is null.
@see #contains(Object)
Returns <tt>true</tt> if this collection contains all of the elements in the specified collection.
@param c collection to be checked for containment in this collection @return <tt>true</tt> if this collection contains all of the elements in the specified collection @throws ClassCastException if the types of one or more elements in the specified collection are incompatible with this collection (<a href="#optional-restrictions">optional</a>) @throws NullPointerException if the specified collection contains one or more null elements and this collection does not permit null elements (<a href="#optional-restrictions">optional</a>), or if the specified collection is null. @see #contains(Object)