What ADT would be used along with a queue to determine if a string is a palindrome?

Using Word Web App, you and one or more co-authors can edit a document simultaneously. However, you cannot change the same paragraph that a co-author is actively editing. Provide at least two ways you are informed that another person is working with the same document

What will be an ideal response?

A class that implements an interface but does not declare all of the interface’s methods must be declared:

a) public b) interface c) abstract d) final