being located between two characters on screen specificallythe java util listiterator interface includes the following methodsadd( )add the element at the current position of the iterator hasnext()true if and only if there is an element after the current position of the iterator hasprevious()true if and only if there is an element before the current position of the iterator previous()return the element before the current position and sets the current position to be before next()return the element after the current position and sets the current position to be after nextindex()return the index of the next element previousindex()return the index of the previous element set( )replace the element returned by the previous next or previous operation with remove()remove the element returned by the previous next or previous operation it is risky to use multiple iterators over the same list while modifying its contents if insertionsdeletionsor replacements are required at multiple "placesin listit is safer to use positions to specify these locations but the java util linkedlist class does not expose its position objects to the user