python 2 object oriented programming pdf

... Trang 1Chapter 2 introduces Object  Oriented Programming OOP is a relatively new  approach to programming  which supports the creation  of new data types and  ... operations to manipulate  those types This presentation introduces  OOP Programming Data Structures and Other Objects Using C++ Trang 2There is no real  answer to the question,  but we’ll call it a 

Ngày tải lên: 01/04/2021, 19:25

... (self, other): self_mag = (self.x ** 2) + (self.y ** 2) other_mag = (other.x ** 2) + (other.y ** 2) return self_mag < other_mag p1 = Point(1,1) p2 = Point(-2,-3) p3 = Point(1,-1) # use less than ... cách sử dụng method function không n = 123 print(len(n)) # TypeError: object of type 'int' has no len() n = 123 print(n.upper()) # AttributeError: 'int' object has no attribute 'upper’ Classes ... Introduction  Namespaces and Dataclasses  Classes in Python  Inheritance in Python  Multiple Inheritance  Operator Overloading  Example OOP  Trong Python, khái niệm OOP tuân theo số nguyên lý tính

Ngày tải lên: 28/04/2022, 06:53

... Trang 28 2003 Prentice Hall, Inc.All rights reserved.Outline 28 fig10_10.cpp (2 of 3) 25 // set floating-point numeric formatting 26 cout << fixed << setprecision( 2 ); 27 28 // ... reserved.Outline 13 fig10_05.cpp (2 of 3) 25 // set floating-point numeric formatting 26 cout << fixed << setprecision( 2 ); 27 28 // output objects point and circle 29 cout << "Print ... // object through base-class pointer Trang 20 2003 Prentice Hall, Inc.All rights reserved.Outline 20 fig10_07.cpp (2 of 2) 23 // attempt to invoke derived-class-only member functions 24 //

Ngày tải lên: 02/04/2014, 06:20

... error('OOP:UnexpectedType', 20 ['Conversion to ' mfilename('class') ' from ' 21 class(mismatched{1}) ' is not possible.']); 22 end 24 this_subset = this(index(1).subs{:}); % get the subset 25 this_subset ... deal(figure_handle); % save the handle 25 figure(handle_array); % use the handle 26 27 if nargin < 2 Trang 8Object Arrays with Inheritance 181When a figure_handle isn’t passed in, lines 2–4 initialize figure_handle ... empty, line 20 creates a new figure; otherwise, the first element of handle_array will be reused Line 24 assigns the handle into the objects, and line 25 activates the figure Lines 27–29 clear the

Ngày tải lên: 05/08/2014, 21:21

... ones(1, size(hsv,2))); 15 for k = 1:length(this(:)) 'Color')); 20 22 if length(index) > 1 23 error([index(1).subs ' does not support indexing']); 25 if any([varargin{:}] < 1) 26 error([index(1).subs ... varargin(normal_sieve) = {1}; 20 varargin(bold_sieve) = {3}; 21 index(1).subs = 'LineWidth'; 22 line_style = set([this.mLineStyle], index, varargin{:}); 23 line_style = num2cell(line_style); 24 [this.mLineStyle] ... line 22 will correctly return a modified version of the object This is another example of composition Line 23 converts the line_style array into a cell array, and line 24 deals the modified objects

Ngày tải lên: 05/08/2014, 21:21

... Trang 128 case 'Color'nargout varargin{:}]); 52 54 if ~found && called_by_name 67 Trang 272 else75 81 varargin{:}); sub-indexing 105 107 if ~found 112 114 if length(varargout) ... lines 28–36, uses a helper function As before, line 28 identifies the ‘Color’ case, and when the object is empty, line 30 returns an empty varargout When the object is not empty, line 32 prepares ... scalar, line 20 uses subsasgn to assign the subset If the array is nonscalar, lines 22–23 throw an error by calling array_reference_error After populating the rgb temporary variable, line 26 converts

Ngày tải lên: 05/08/2014, 21:21

... private variable, every object gets its own copy; but with a static variable, every object of the class shares one copy If one object sets the value, that value shows up in all objects of the class ... three buttons used in the parent-class dialog Refer to §17.2.1.2 for a description of their behavior When you finish modifying the object’s public data, click the Done button This will save your ... three buttons used in the parent-class dialog Refer to §17.2.1.2 for a description of their behavior When you finish modifying the object’s public data, click the Done button This will save your

Ngày tải lên: 05/08/2014, 21:21

... copyright notice 20 % Replace this line with a string for your revision control software 21 % A Class Wizard v.3 assembled file, generated: 18-Jan-2006 13:18:46 Trang 722 %23 24 switch which 25 case 'get' ... standard copyright notice 24 % Replace with a string recognized by your revision control software 25 % A Class Wizard v.3 assembled file, generated: 20-Dec-2005 13:23:23 26 Trang 418.1.5 C L INE ... email address 20 % Replace with your phone number 21 % Replace with the author notes that you would like to appear just after 22 % the author info for every file in this class 23 % Replace with

Ngày tải lên: 05/08/2014, 21:21

... command on line 24, subsasgn inserted a default cShape object into index 2 Calling num2cell and displaying the result (lines 25–27) confirm our expectations for object types Line 28 uses operator ... number of objects Lines 14–21 create a few shape objects with specifically assigned values Lines 23–33 add, remove, and reshape container elements Line 23 inserts star into index 1, and line 24 inserts ... >> star = cStar; 17 >> 22 >> 23 >> shapes(1) = star; 29 >> shapes(2) = []; 30 >> size(shape) 34 >> 40 >> shapes.ColorRgb 42 1 0 0 1 43 0 0 1 44

Ngày tải lên: 05/08/2014, 21:21

... num2cell(developer_sieve); 20 21 case 'set' % MUTATOR 22 % input: index contains any additional indexing as a substruct 23 % input: varargin contains values to be assigned into the object 24 ... non-direct-link code 25 do_assignin = false; % leave false until you read book section 3 26 varargout = {}; % 'set' returns nothing in varargout 27 28 if ~isempty(index) 29 error('Deeper levels ... get(star, 'mFigureHandle') 12 ans = 14 >> 15 >> get(star, 'mDisplayFunc') 16 ans = 18 >> star 19 star = 23 LineWeight: 'normal' 26 >> star.View 27 ans = 29 >> get(star,

Ngày tải lên: 05/08/2014, 21:21

... this.m_protected_func_array{include}}; C911X_C023.fm Page 341 Friday, March 2, 2007 10:38 AM Trang 9342 A Guide to MATLAB Object-Oriented ProgrammingCode Listing 142, Parent Forward Inside Protected pget ... some insight into this behavior Lines 22–23 display a complete summary of all objects in the workspace Chapter 24 discusses objectdirectory in more detail Line 25 explicitly created an anonymous ... showstoppers 9 Create a class named cF2C and overload times so that the following command correctly converts degrees F into degrees C: deg_c = [32 212] * cF2C; Is cF2C a functor? Does this syntax have

Ngày tải lên: 05/08/2014, 21:21

... events in JAVA Alistener is an object that includes one or more event-handling methods When anevent is detected by another object, such as a button or menu, the listener object is notified and it ... detected or generated by an object Another object, the listener, has theresponsibility of responding to the event The event itself is actually represented by a third object, which carries information ... an object be-longing to the classActionEvent The event that is generated is associated with thebutton; we say that the button is thesourceof the event The listener object in thiscase is an object

Ngày tải lên: 12/08/2014, 21:21

... rank(1=ACE, 2-10=cards 2 to 10, 11=JACK, 12=QUEEN, 13=KING) e.g c12 is theQueen of clubs; d1 is the Ace of Diamonds; h8=8 of hearts There are two images of the back of a card (b1fv.gifand b2fv.gif) ... sayCardNames.ace) man-7.2.2 The Deck class This class is meant to represent a deck of 52 cards (A Deck is composed of 52 Cards).Its responsibilities are: Create a deck of 52 cards Know the cards ... very quickly ImageIO.read(), on the other hand, can take some time toexecute Trang 3TION TOOBJECT-ORIENTED PROGRAMMING.7.1 Klondike Solitaire The most popular solitare game is called klondike It

Ngày tải lên: 12/08/2014, 21:21

... Trang 1Object Oriented Programming in Python By Amarjit Singh Karanvir Singh *#%???$% Trang 2• Contents Object Oriented Programming Basics Basic Concepts of Object Oriented Programming Object ... Object Oriented Programming in Python Python Classes Trang 10• All classes are derived from object (new-style classes) • Python objects have data and function attributes (methods) • Object Oriented ... Programming Object Oriented Programming in Python How to do Object Oriented Programming in Python More about Python More information about the language Part 1 Part 2 Part 3 Part 4 Design

Ngày tải lên: 12/09/2017, 01:34

... Copyright © 2011 by Maria Litvin, Gary Litvin, and Skylight Publishing All rights reserved Chapter 2 Java Methods Object-Oriented Programming and Data Structures Maria Litvin ● Gary Litvin 2nd AP ... Trang 27OOP (cont’d) • A method can change the object’s state, send messages to other objects, and create new objects • An object belongs to a particular class, and the functionality of each object ... libraries Trang 25No main in applets: the init method is called by JDK’s appletviewer or the browser Trang 26• An object may have its own “memory,” which may contain other objects • An object has

Ngày tải lên: 04/11/2020, 23:13

... short int long Kích thước 2 byte 2 hoặc 4 byte 4 byte Khoảng giá trị -32768 - 32767 -32768 - 32767 -231 – 231-1 Trang 9Ngô Công Thắng - Bài giảng LTHDT - Chương 01_2 92 Kiểu số nguyên  Kiểu số ... hoặc E. Ví dụ: 125.34E-3 là số 125.34x10 -3 = 0.12534 0.12E3 là số 0.12x10 3 = 120 1E3 là số 10 3 = 1000 Trang 124 Kiểu logic Kiểu logic được C++ định nghĩa với tên bool, gồm 2 giá trị được đặt ... unsigned short unsigned int hoặc unsigned unsigned long Kích thước 2 byte 2 hoặc 4 byte 4 byte Khoảng giá trị 0 - 65535 0 - 65535 0 - 232-1  Các hằng số nguyên viết bình thường Chú ý: Các hằng số

Ngày tải lên: 30/06/2023, 08:58

... Trang 1Object Oriented Programming Course1 Chương 2: KỸ THUẬT XÂY DỰNG CHƯƠNG TRÌNH DU LỊCH Trang 42.1 Những căn cứ cơ sởChương trình du lịch chính ... 12Thảo luận nhóm:Thảo luận và cho ví dụ loại hình du lịch phù hợp với từng nhóm đối tượng du lịch được phân loại dựa vào góc độ tâm – sinh lý cá nhân Trang 132.1.2 Các yếu tố thị trường2.1.2.1 ... gian hay kinh tế tài chính mà là những đặc điểm tâm – sinh lý cá nhân. Trang 142.1.2 Các yếu tố thị trường2.1.2.2 Các yếu tố liên quan đến đối thủ cạnh tranh a Thương hiệu • Thương hiệu mạnh

Ngày tải lên: 25/04/2024, 01:45

... Trang 1Object-Oriented ProgrammingObject-oriented programming is the third major programming paradigm At its heart, object-oriented programming has a few simple ideas, ... an object’s methods This technique was first invented before functional programming languages had object-oriented constructs as a way of performing tasks that lent themselves well to object-oriented ... "Water: %i" xend Object Expressions Object expressions are at the heart of succinct object-oriented programming in F# They vide a concise syntax to create an object that inherits from

Ngày tải lên: 05/10/2013, 10:20