Generics

• Typed One to Many relationship in Java classes

• • public class Team { private List<Person> members; private Person teamleader; }

• Allow you to specify element type of collection

• • Instead of: List names = new ArrayList();
  • Write: List<String> names = new ArrayList<String>();

• Enforce specification at compile time (compile time check)

• • No casting; instead of String title = (String) names.get(i); use: String title = names.get(i);