///:~容我对这个系列美其名曰"读书笔记",其实shi在练习英文哈:-) Introduction to Objects Object-oriented programming(OOP) is part of this movement toward using the computer as an expressive medium. This chapter will introduce you to the basic concepts of OOP, including an…

Java Provides a number of ways to hold objects: An array associates numerical indexes to objects. It holds objects of a known type so that you don't have to cast the result when you're looking up an object. It can be multidimensional, and it can hold…

与声明一个primitive variable不同,声明一个对象的时候,并不创建用来存储一个对象的内存空间,而是创建了一个存储该对象所在内存空间的地址. 在java里,new是一个操作符,它让系统分配一个特定类型的存储空间,并返回该内存空间的地址. String str: str = “Java Programing”; 和 String str = new String("Java Programing"); 是有区别的,前者是把已经存在的“Java Programming”的存储地…

PRML Chapter 1. Introduction 为了防止忘记,要把每章的重要内容都记下来,从第一章开始 2012@3@28 今天又回去稍微翻了一下第一章内容,发现第一次看的时候没有看透,每次翻都能翻出新的内容和感悟来.这主要得益于后面其他书里看到的一些内容后,再来看前面的某些话,就知道这些话不是白写的了,而是每一句都有一些深层的意义. 因此对于PRML这样的书,看一两遍是不够的,有空要多回翻 P 2 generalization的定义:The ability to categorize…

Chapter 1. Introduction 翻译太累了,我就这样的看英文吧. 内容列表 1.1. A Bit of History 1.2. The Java Virtual Machine 1.3. Organization of the Specification 1.4. Notation 1.5. Feedback 1.1. A Bit of History The Java® programming language is a general-purpose, concurrent…

If we spoke a different language, we would perceive a somewhat different world. Ludwig Wittgenstein(1889-1951) You manipulate objects with references Although you treat everything as an object, the identifier you manipulate is actually "reference&quo…

原文: http://www.deeplearningbook.org/contents/intro.html Inventors have long dreamed of creating machines that think. Ancient Greek myths tell of intelligent objects, such as animated statues of human beings and tables that arrive full of food and dri…

Exception guidelines Use exceptions to: Handle problems at the appropriate level.(Avoid catching exceptions unless you know what to do with them.) Fix the problem and call the method that caused the exception again. Patch things up and continue witho…

The genesis of the computer revolution was a machine. The genesis of out programming languages thus tends to look like that machine. 计算机革命起源于机器,因此编程语言的产生也始于对机器的模仿 Computers are mind amplification tools and a different kind of expressive medium. 计算机是大…

The twist |_Method-call binding Connecting a method call to a method body is called binding. When binding is performed before the program is run(by the compiler and linker, if there is one), it's called early binding. You might not hava heard the ter…