OCP Java SE 7 Programmer II Certification Guide: Prepare for the 1ZO-804 exam

Chapter 4. Generics and collections

Exam objectives covered in this chapter	What you need to know
[4.1] Create a generic class	How to define generic classes, interfaces, and methods with single and multiple type parameters How to define generic methods with a generic or regular class
[4.2] Use the diamond for type inference	How to drop the type from the angle brackets to instantiate generic classes How to use wildcards to create and instantiate generic classes
[4.3] Analyze the interoperability of collections that use raw types and generic types	What happens when you lose type safety by using variables of raw types and objects of generic types How to determine and differentiate scenarios that would generate compilation errors ...