The cancer-color proliferation also has created some quirky chromatic overlaps. Orange represents two cancers (kidney, leukemia). Green stands for three (liver, lymphoma gall bladder). Variations of purple signify six (pancreatic, testicular, leiomyosarcoma, Hodgkin lymphoma, stomach and esophageal).
If the container is empty, then begin() == end(); All standard iterator and container types behave the same in this regard: Â§23.2.1 [container.requirements.general] p6. begin() returns an iterator referring to the first element in the container.
The iterator method returns an object that implements the Iterator interface. An object of an iterator interface can be used to traverse through all elements of a collection. Elements can also be modified and removed from the collection while traversal. Learn how to code in Java through a beginnerâs course at Udemy.com. Characteristics of a Java Iterator: 1  It works similar to enumeration. 2  The iterator interface is in the Java Collections Framework. 3  The Iterator object traverses through all elements of the collection. 4  All collection framework Interfaces have the iterator() method.