CSE 8A Chapter Notes - Chapter 3.6, 4.1-4.3: Alpha Compositing, Pixelization, Memory Address
Document Summary
Fully qualified name of a file path to file as well as base file name and extension. Null doesn"t refer to a valid object. \ - refers to path separator: everything else is the path to file, describes where on hard disk a file is filename. extension base file name. A class is a factory for making objects of that class. Results from one method can be used in the next method. Types can be one of 8 primitive types or a class: class type can be predefined our user-created. Methods do not have to return something, they can just do something. When a primitive variable is declared, space is reserved to represent its value: name used to find address leading to reserved space. Object variables do not reserve space since java does not know how much space to reserve: instead, they reserve space for a reference to an object of the class.