Java Basic Knowledge Hardening Collection Framework note 10:collection The steps used by the collection

Steps to use for the collection:

(1) Creating a Collection Object

(2) Creating an Element object

(3) Adding elements to the collection

(4) Traversing the collection:

• Get an Iterator object from a collection object

• Determine if there are elements through the Hasnext () method of the Iterator object

• Get elements through the next () method of the Iterator object and move to the next position

Note:

Iterators are a way to iterate through a collection .

Iterators are dependent on collections and exist

Java Basic Knowledge Hardening Collection Framework note 10:collection The steps used by the collection