Re: [問題] 將callback轉型成原本的class
※ 引述《sbrhsieh (十年一夢)》之銘言：
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: : ◆ From: 118.168.127.139
: : 推 PsMonkey:其實... 用中文感覺很怪...... 10/14 21:16
: : → adrianshum:我個人是寧願用 pointer 一詞。reference 常有不清混淆 10/14 22:33
: : → adrianshum:還有其實 Java 的 ref 根本就是概念上的 pointer，只是 10/14 22:34
: : → adrianshum:沒有像C/C++那種 pointer arithematics 而己 10/14 22:34
: : → Chikei:ptr +1，用ref常會有人問call by ??跟參照到哪個實體的問題 10/14 22:59
: 主要是看個人對 pointer 的定義。
: 我個人認為能作 pointer arithmetic 的才叫 pointer。
呃，我想Java對pointer的定義正好是不能做poitner arithemetic的pointer
JLS7:
4.1 The Kinds of Types and Values
There are two kinds of types in the Java programming language: primitive
types (§4.2) and reference types (§4.3). There are, correspondingly,
two kinds of data values that can be stored in variables, passed as
arguments, returned by methods, and operated on: primitive values (§4.2)
and reference values (§4.3).
4.3 Reference Types and Values
4.3.1 Objects
An object is a class instance or an array.
The reference values (often just references) are ***pointers*** to these
objects, and a special null reference, which refers to no object.
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