Starting Out with Java: From Control Structures through Objects (6th Edition)

Category: Programming
Author: Tony Gaddis
4.3
This Month Stack Overflow 1

Comments

by anonymous   2019-01-13

If you could add the final modifier to a local variable, it was effectively final.

Lambda expressions can access

  • static variables,

  • instance variables,

  • effectively final method parameters, and

  • effectively final local variables.

Source: OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide, Jeanne Boyarsky, Scott Selikoff

Additionally,

An effectively final variable is a variable whose value is never changed, but it isn’t declared with the final keyword.

Source: Starting Out with Java: From Control Structures through Objects (6th Edition), Tony Gaddis

Furthermore, don't forget the meaning of final that it is initialized exactly once before it is used for the first time.