Programming for Engineers in Python
|
|
- Randolf Whitehead
- 5 years ago
- Views:
Transcription
1 Programming for Engineers in Python Lecture 5: Object Oriented Programming Autumn
2 Lecture 4 Highlights Tuples, Dictionaries Sorting Lists Modular programming Data analysis: text categorization Collect data Most frequent words How it is really done 2
3 Today Quick review on functions Object Oriented Programming (partially based on chapters in the book Think Python, available in the site) 3
4 Functions (Quick Overview) 4
5 How to Calculate 5! + 3! + 6!? 5
6 Problems Same code duplicated 3 times More elements more code duplicates The program becomes longer and more complicated May cause bugs, cut & paste errors Hard to understand what was the writer s intension What would we like? Write the code once! Use it several times with different arguments 6
7 Solution - Functions 7
8 Functions A group of declarations and statements that is assigned a name Effectively, a named statement block Usually has a value A sub-program Inside a fucntion we can call other functions Which can themselves use other functions, and so on Function output: Return value to the calling function If no value is to be returned, None is returned 8
9 What are They Good For? Generalize a repeated set of instructions We don t have to keep writing the same thing over and over Solve bugs once They can break your problem down into smaller sub-tasks Easier to solve complex problems They make a program much easier to read and maintain Abstraction we don t have to know how a function is implemented to use it 9
10 In Short Why do we need functions? Code reusability Modularity Abstraction 10
11 Examples 11
12 Passing Arguments to Functions When a function is called, arguments values are attached to function s formal parameters by order, and an assignment occurs before execution Values are copied to formal parameters 12
13 Passing Arguments to Functions A reference is passed by reference Example: lists This explains why we can change an array s content within a function a
14 Example 14
15 Pyhton Memory Model Stack: local variables and arguments, every function uses a certain part of the stack Stack variables disappear when scope ends Heap: global variables and objects, scope independent Garbage Collector Partial description 15
16 How to Change a Variable via Functions? So how can a method change an outer variable? By its return value By accessing heap-based memory (e.g., lists) 16
17 A Car How would you represent a car? Parts / features: 4 wheels, steering wheel, horn, color, Functionality: drive, turn left, honk, repaint, In Python??? 17
18 Lets Start Simpler How would you represent a library? Container of books Each book: Title Author ISBN number Number of pages Publisher 18
19 Printing a Book 19
20 What Would We Want? To group the definition of several variables under a single name a new type Somewhat similar to functions Using the new type as if it is part of the language: Define variables, perform operation 20
21 Object-Oriented Programming (OOP) Represent problem-domain entities using a computer language When building a software in a specific domain, describe the different components of the domain as types and variables Thus we can take another step up in abstraction 21
22 Class as a Blueprint A class is a blueprint of objects 22
23 Class as a Blueprint A class is a blueprint of objects 23
24 Classes as Data Types Classes define types that are a composition of other types and have unique functionality An instance of a class is named an object Every instance may contain: Constructors Attributes (data members / fields) Methods 24
25 Car Example Members: 4 wheels, steering wheel, horn, color, Every car instance has its own Methods: drive, turn left, honk, repaint, Constructors: by color (only), by 4 wheels, engine, 25
26 How to Represent a Point in 2D? Alternatives: Two variables x,y Elements in a list / tuple A new data type Creating a new type is a (little) more complicated, but has its advantages (to be apparent soon) class a user defined type How to represent a point? 26
27 Creating a new Point (instantiation) blank is an instance of class Point 27
28 But Where is the Point? x does not exist in blank (nor y) We want to be able to access x,y via Point instance 28
29 Constructors A special function, defined in the class s code that produces instances Invoked automatically when an object is instantiated Given as input whatever is required to produce an instance What would a Point s constructor accept as inputs? 29
30 Constructors More Technically Defined within the class s scope Always named init Short for initialization 2 underscores init 2 underscores The first parameter would be self To be explained later on Note that when invoking (calling) the constructor, self is not passed as an argument It is common for the parameters of init to have the same names as the attributes 30
31 Attributes p1 Point x 3.0 y 4.0 The variable p1 refers to a Point object p1.x means Go to object p1 refers to and get the value of x There is no conflict between a variable x and the attribute x 31
32 Instances and Functions Objects can be passed as arguments to functions Objects are mutable 32
33 Copying Objects is operator indicates that p1 and p2 are not the same object, the default behavior of the == operator is the same as the is operator 33
34 Instances as Return Values 34
35 A Circle How would you represent a circle object? Attributes? Constructor? 35
36 Shallow / Deep Copy 36
37 Shallow / Deep Copy (Cont.) 37
38 Object Oriented Programming Programs are made of object definitions and function definitions, and most of the computation is expected in terms of operations on objects Each object definition corresponds to some object or concept in the real world, and the functions that operate on that object correspond to the ways real-world objects interact 38
39 Methods Method is a function that is associated with a particular class Examples in strings, lists, dictionaries, tuples Difference between methods and functions: Methods are defined inside a class definition The syntax for invoking a method A method is called through an instance 39
40 Example: Distance Between Two Points (function) 40
41 Example: Distance Between Two Points (method) 41
42 Example: In Circle 42
43 Next week: defining a new type that behaves as part of the language More OOP Implementation of Rational Numbers 43
Chapter 6 Introduction to Defining Classes
Introduction to Defining Classes Fundamentals of Java: AP Computer Science Essentials, 4th Edition 1 Objectives Design and implement a simple class from user requirements. Organize a program in terms of
More informationObjects and Classes. Amirishetty Anjan Kumar. November 27, Computer Science and Engineering Indian Institue of Technology Bombay
Computer Science and Engineering Indian Institue of Technology Bombay November 27, 2004 What is Object Oriented Programming? Identifying objects and assigning responsibilities to these objects. Objects
More informationCS108 Lecture 16: User Defined Classes. Overview/Questions
CS108 Lecture 16: User Defined Classes Aaron Stevens 23 February 2009 1 Overview/Questions Review: the function of functions Thinking about program structure Review: objects and classes How do we design
More informationData Structures (list, dictionary, tuples, sets, strings)
Data Structures (list, dictionary, tuples, sets, strings) Lists are enclosed in brackets: l = [1, 2, "a"] (access by index, is mutable sequence) Tuples are enclosed in parentheses: t = (1, 2, "a") (access
More informationObject Model Comparisons
Object Model Comparisons 1 Languages are designed, just like programs Someone decides what the language is for Someone decides what features it's going to have Can't really understand a language until
More informationComputer Science II. OO Programming Classes Scott C Johnson Rochester Institute of Technology
Computer Science II OO Programming Classes Scott C Johnson Rochester Institute of Technology Outline Object-Oriented (OO) Programming Review Initial Implementation Constructors Other Standard Behaviors
More informationThe Dynamic Typing Interlude
CHAPTER 6 The Dynamic Typing Interlude In the prior chapter, we began exploring Python s core object types in depth with a look at Python numbers. We ll resume our object type tour in the next chapter,
More informationCS24 Week 3 Lecture 1
CS24 Week 3 Lecture 1 Kyle Dewey Overview Some minor C++ points ADT Review Object-oriented Programming C++ Classes Constructors Destructors More minor Points (if time) Key Minor Points const Motivation
More informationCSCE 156 Computer Science II
CSCE 156 Computer Science II Lab 04 - Classes & Constructors Dr. Chris Bourke Prior to Lab 1. Review this laboratory handout prior to lab. 2. Read Object Creation tutorial: http://download.oracle.com/javase/tutorial/java/javaoo/objectcreation.
More informationObjects and Classes. Chapter 8
200 Chapter 8 Objects and Classes The style of programming we have seen so far is called procedural programming. This was the first programming paradigm, developed in the 1950 s and 1960 s alongside the
More informationCS313D: ADVANCED PROGRAMMING LANGUAGE
CS313D: ADVANCED PROGRAMMING LANGUAGE Computer Science department Lecture 4 (a): Classes & Objects Lecture Contents 2 What is a class? Class definition: Data Methods Constructors objects Static members
More informationLecture 6 Introduction to Objects and Classes
Lecture 6 Introduction to Objects and Classes Outline Basic concepts Recap Computer programs Programming languages Programming paradigms Object oriented paradigm-objects and classes in Java Constructors
More informationFrequently Asked Questions
Frequently Asked Questions This PowerTools FAQ answers many frequently asked questions regarding the functionality of the various parts of the PowerTools suite. The questions are organized in the following
More informationCSCI 3155: Principles of Programming Languages Exam preparation #1 2007
CSCI 3155: Principles of Programming Languages Exam preparation #1 2007 Exercise 1. Consider the if-then-else construct of Pascal, as in the following example: IF 1 = 2 THEN PRINT X ELSE PRINT Y (a) Assume
More informationFunctions, Scope & Arguments. HORT Lecture 12 Instructor: Kranthi Varala
Functions, Scope & Arguments HORT 59000 Lecture 12 Instructor: Kranthi Varala Functions Functions are logical groupings of statements to achieve a task. For example, a function to calculate the average
More informationCS313D: ADVANCED PROGRAMMING LANGUAGE
CS313D: ADVANCED PROGRAMMING LANGUAGE Computer Science department Lecture 4 : Classes & Objects Lecture Contents What is a class? Class definition: Data Methods Constructors Properties (set/get) objects
More informationOverview of OOP. Dr. Zhang COSC 1436 Summer, /18/2017
Overview of OOP Dr. Zhang COSC 1436 Summer, 2017 7/18/2017 Review Data Structures (list, dictionary, tuples, sets, strings) Lists are enclosed in square brackets: l = [1, 2, "a"] (access by index, is mutable
More informationCosmology with python: Beginner to Advanced in one week. Tiago Batalha de Castro
Cosmology with python: Beginner to Advanced in one week Tiago Batalha de Castro What is Python? (From python.org) Python is an interpreted, object-oriented, high-level programming language with dynamic
More informationLesson 6 Introduction to Object-Oriented Programming
Lesson 6 Introduction to Object-Oriented Programming Programming Grade in Computer Engineering Outline 1. Motivation 2. Classes, objects and attributes 3. Constructors 4. Methods 5. Composition 6. Object
More informationINF 102 CONCEPTS OF PROG. LANGS FUNCTIONAL COMPOSITION. Instructors: James Jones Copyright Instructors.
INF 102 CONCEPTS OF PROG. LANGS FUNCTIONAL COMPOSITION Instructors: James Jones Copyright Instructors. Topics Recursion Higher-order functions Continuation-Passing Style Monads (take 1) Identity Monad
More informationIndex. object lifetimes, and ownership, use after change by an alias errors, use after drop errors, BTreeMap, 309
A Arithmetic operation floating-point arithmetic, 11 12 integer numbers, 9 11 Arrays, 97 copying, 59 60 creation, 48 elements, 48 empty arrays and vectors, 57 58 executable program, 49 expressions, 48
More informationGIS 4653/5653: Spatial Programming and GIS. More Python: Statements, Types, Functions, Modules, Classes
GIS 4653/5653: Spatial Programming and GIS More Python: Statements, Types, Functions, Modules, Classes Statement Syntax The if-elif-else statement Indentation and and colons are important Parentheses and
More informationOutline. Object Oriented Programming. Course goals. Staff. Course resources. Assignments. Course organization Introduction Java overview Autumn 2003
Outline Object Oriented Programming Autumn 2003 2 Course goals Software design vs hacking Abstractions vs language (syntax) Java used to illustrate concepts NOT a course about Java Prerequisites knowledge
More informationPrograms as Models. Procedural Paradigm. Class Methods. CS256 Computer Science I Kevin Sahr, PhD. Lecture 11: Objects
CS256 Computer Science I Kevin Sahr, PhD Lecture 11: Objects 1 Programs as Models remember: we write programs to solve realworld problems programs act as models of the real-world problem to be solved one
More informationPlay with Python: An intro to Data Science
Play with Python: An intro to Data Science Ignacio Larrú Instituto de Empresa Who am I? Passionate about Technology From Iphone apps to algorithmic programming I love innovative technology Former Entrepreneur:
More information15 212: Principles of Programming. Some Notes on Continuations
15 212: Principles of Programming Some Notes on Continuations Michael Erdmann Spring 2011 These notes provide a brief introduction to continuations as a programming technique. Continuations have a rich
More informationCSE 303: Concepts and Tools for Software Development
CSE 303: Concepts and Tools for Software Development Hal Perkins Autumn 2008 Lecture 24 Introduction to C++ CSE303 Autumn 2008, Lecture 24 1 C++ C++ is an enormous language: All of C Classes and objects
More informationCT 229 Arrays in Java
CT 229 Arrays in Java 27/10/2006 CT229 Next Weeks Lecture Cancelled Lectures on Friday 3 rd of Nov Cancelled Lab and Tutorials go ahead as normal Lectures will resume on Friday the 10 th of Nov 27/10/2006
More informationLecture 04 FUNCTIONS AND ARRAYS
Lecture 04 FUNCTIONS AND ARRAYS 1 Motivations Divide hug tasks to blocks: divide programs up into sets of cooperating functions. Define new functions with function calls and parameter passing. Use functions
More informationCMSC 132: Object-Oriented Programming II
CMSC 132: Object-Oriented Programming II Java Support for OOP Department of Computer Science University of Maryland, College Park Object Oriented Programming (OOP) OO Principles Abstraction Encapsulation
More informationAdministration. Classes. Objects Part II. Agenda. Review: Object References. Object Aliases. CS 99 Summer 2000 Michael Clarkson Lecture 7
Administration Classes CS 99 Summer 2000 Michael Clarkson Lecture 7 Lab 7 due tomorrow Question: Lab 6.equals( SquareRoot )? Lab 8 posted today Prelim 2 in six days! Covers two weeks of material: lectures
More informationObject Class. EX: LightSwitch Class. Basic Class Concepts: Parts. CS257 Computer Science II Kevin Sahr, PhD. Lecture 5: Writing Object Classes
1 CS257 Computer Science II Kevin Sahr, PhD Lecture 5: Writing Object Classes Object Class 2 objects are the basic building blocks of programs in Object Oriented Programming (OOP) languages objects consist
More informationLecture Contents CS313D: ADVANCED PROGRAMMING LANGUAGE
CS313D: ADVANCED PROGRAMMING LANGUAGE Computer Science department Lecture 4 : Classes & Objects Lecture Contents What is a class? Class definition: Data Methods Constructors Properties (set/get) objects
More informationCMSC 132: Object-Oriented Programming II
CMSC 132: Object-Oriented Programming II Java Support for OOP Department of Computer Science University of Maryland, College Park Object Oriented Programming (OOP) OO Principles Abstraction Encapsulation
More informationCS24: INTRODUCTION TO COMPUTING SYSTEMS. Spring 2018 Lecture 10
CS24: INTRODUCTION TO COMPUTING SYSTEMS Spring 2018 Lecture 10 PREVIOUSLY: ARRAY ACCESS C doesn t provide a very safe programming environment Previous example: array bounds checking int a; int r[4]; int
More informationCS313D: ADVANCED PROGRAMMING LANGUAGE
CS313D: ADVANCED PROGRAMMING LANGUAGE Computer Science department Lecture 4 : Classes & Objects Lecture Contents What is a class? Class definition: Data Methods Constructors Properties (set/get) objects
More informationAnnouncements. Homework 1 due Monday 10/12 (today) Homework 2 released next Monday 10/19 is due 11/2
61A Extra Lecture 6 Announcements Homework 1 due Monday 10/12 (today) Homework 2 released next Monday 10/19 is due 11/2 Homework 3 is to complete an extension to Project 4 Due at the same time as Project
More informationLaunchpad Lecture -10
Saturday, 24 September Launchpad Lecture -10 Dynamic Allocation, Object Oriented Programming-1 Prateek Narang 2 Recap 1. How to define pointers? 2. Address of Operator? 3. Dereference operator? 4. Arithmetic
More informationExample: Fibonacci Numbers
Example: Fibonacci Numbers Write a program which determines F n, the (n + 1)-th Fibonacci number. The first 10 Fibonacci numbers are 0, 1, 1, 2, 3, 5, 8, 13, 21, and 34. The sequence of Fibonacci numbers
More informationCSCI B522 Lecture 11 Naming and Scope 8 Oct, 2009
CSCI B522 Lecture 11 Naming and Scope 8 Oct, 2009 Lecture notes for CS 6110 (Spring 09) taught by Andrew Myers at Cornell; edited by Amal Ahmed, Fall 09. 1 Static vs. dynamic scoping The scope of a variable
More informationObject-Oriented Programming Concepts
Object-Oriented Programming Concepts Real world objects include things like your car, TV etc. These objects share two characteristics: they all have state and they all have behavior. Software objects are
More informationLecture 15: Even more pointer stuff Virtual function table
CIS 330: / / / / (_) / / / / _/_/ / / / / / \/ / /_/ / `/ \/ / / / _/_// / / / / /_ / /_/ / / / / /> < / /_/ / / / / /_/ / / / /_/ / / / / / \ /_/ /_/_/_/ _ \,_/_/ /_/\,_/ \ /_/ \ //_/ /_/ Lecture 15:
More informationINF 212 ANALYSIS OF PROG. LANGS FUNCTION COMPOSITION. Instructors: Crista Lopes Copyright Instructors.
INF 212 ANALYSIS OF PROG. LANGS FUNCTION COMPOSITION Instructors: Crista Lopes Copyright Instructors. Topics Recursion Higher-order functions Continuation-Passing Style Monads (take 1) Identity Monad Maybe
More information1. Write two major differences between Object-oriented programming and procedural programming?
1. Write two major differences between Object-oriented programming and procedural programming? A procedural program is written as a list of instructions, telling the computer, step-by-step, what to do:
More informationCSCA08 Winter 2018 Week 9:Object-Oriented Programming. Marzieh Ahmadzadeh,, Brian Harrington University of Toronto Scarborough
CSCA08 Winter 2018 Week 9:Object-Oriented Programming Marzieh Ahmadzadeh,, Brian Harrington University of Toronto Scarborough Data Types Up to now you have used Python s built-in data types: primitive
More informationC++ Classes & Object Oriented Programming
C++ Classes & Object Oriented Programming What is it? Object Oriented Programming 1 Object Oriented Programming One of the first applications of modern computing was modeling and simulation. Scientists
More informationChapter 12 Object-Oriented Programming. Starting Out with Games & Graphics in C++ Tony Gaddis
Chapter 12 Object-Oriented Programming Starting Out with Games & Graphics in C++ Tony Gaddis Addison Wesley is an imprint of 2010 Pearson Addison-Wesley. All rights reserved. 12.1 Procedural and Object-Oriented
More informationIntroduction to Programming Using Python Lecture 4. Dr. Zhang COSC 1437 Fall, 2018 October 11, 2018
Introduction to Programming Using Python Lecture 4 Dr. Zhang COSC 1437 Fall, 2018 October 11, 2018 Chapter 7 Object-Oriented Programming Object-oriented programming (OOP) involves programming using objects.
More informationPointers and Memory 1
Pointers and Memory 1 Pointer values Pointer values are memory addresses Think of them as a kind of integer values The first byte of memory is 0, the next 1, and so on A pointer p can hold the address
More informationLecture 14: more class, C++ streams
CIS 330: / / / / (_) / / / / _/_/ / / / / / \/ / /_/ / `/ \/ / / / _/_// / / / / /_ / /_/ / / / / /> < / /_/ / / / / /_/ / / / /_/ / / / / / \ /_/ /_/_/_/ _ \,_/_/ /_/\,_/ \ /_/ \ //_/ /_/ Lecture 14:
More informationCS61A Lecture 20 Object Oriented Programming: Implementation. Jom Magrotker UC Berkeley EECS July 23, 2012
CS61A Lecture 20 Object Oriented Programming: Implementation Jom Magrotker UC Berkeley EECS July 23, 2012 COMPUTER SCIENCE IN THE NEWS http://www.theengineer.co.uk/sectors/electronics/news/researchers
More informationAgenda CS121/IS223. Reminder. Object Declaration, Creation, Assignment. What is Going On? Variables in Java
CS121/IS223 Object Reference Variables Dr Olly Gotel ogotel@pace.edu http://csis.pace.edu/~ogotel Having problems? -- Come see me or call me in my office hours -- Use the CSIS programming tutors Agenda
More informationDECOMPOSITION, ABSTRACTION, FUNCTIONS
DECOMPOSITION, ABSTRACTION, FUNCTIONS (download slides and.py files follow along!) 6.0001 LECTURE 4 6.0001 LECTURE 4 1 LAST TIME while loops vs for loops should know how to write both kinds should know
More informationCSCC24 Functional Programming Scheme Part 2
CSCC24 Functional Programming Scheme Part 2 Carolyn MacLeod 1 winter 2012 1 Based on slides from Anya Tafliovich, and with many thanks to Gerald Penn and Prabhakar Ragde. 1 The Spirit of Lisp-like Languages
More information61A Lecture 16. Wednesday, October 5
61A Lecture 16 Wednesday, October 5 Policy Changes Based on the Survey Homework can now be completed in pairs, if you wish. Every individual should still submit his/her own homework Please write your partner's
More informationGlossary. For Introduction to Programming Using Python By Y. Daniel Liang
Chapter 1 Glossary For Introduction to Programming Using Python By Y. Daniel Liang.py Python script file extension name. assembler A software used to translate assemblylanguage programs into machine code.
More informationAbout this exam review
Final Exam Review About this exam review I ve prepared an outline of the material covered in class May not be totally complete! Exam may ask about things that were covered in class but not in this review
More informationUNIVERSITY OF CALIFORNIA Department of Electrical Engineering and Computer Sciences Computer Science Division. P. N. Hilfinger
UNIVERSITY OF CALIFORNIA Department of Electrical Engineering and Computer Sciences Computer Science Division CS 164 Spring 2005 P. N. Hilfinger Project #2: Static Analyzer for Pyth Due: Wednesday, 6 April
More informationM301: Software Systems & their Development. Unit 4: Inheritance, Composition and Polymorphism
Block 1: Introduction to Java Unit 4: Inheritance, Composition and Polymorphism Aims of the unit: Study and use the Java mechanisms that support reuse, in particular, inheritance and composition; Analyze
More informationOops known as object-oriented programming language system is the main feature of C# which further support the major features of oops including:
Oops known as object-oriented programming language system is the main feature of C# which further support the major features of oops including: Abstraction Encapsulation Inheritance and Polymorphism Object-Oriented
More informationRecursion 1. Recursion is the process of defining something in terms of itself.
Recursion 1 Recursion is the process of defining something in terms of itself. A method that calls itself is said to be recursive. Recursion is an alternative form of program control. It is repetition
More informationObject-Oriented Programming
- oriented - iuliana@cs.ubbcluj.ro Babes-Bolyai University 2018 1 / 56 Overview - oriented 1 2 -oriented 3 4 5 6 7 8 Static and friend elements 9 Summary 2 / 56 I - oriented was initially created by Bjarne
More informationCS121/IS223. Object Reference Variables. Dr Olly Gotel
CS121/IS223 Object Reference Variables Dr Olly Gotel ogotel@pace.edu http://csis.pace.edu/~ogotel Having problems? -- Come see me or call me in my office hours -- Use the CSIS programming tutors CS121/IS223
More informationObject-Oriented Programming
Object-Oriented Programming 1. What is object-oriented programming (OOP)? OOP is a technique to develop logical modules, such as classes that contain properties, methods, fields, and events. An object
More informationObject-Oriented Programming (OOP) Basics. CSCI 161 Introduction to Programming I
Object-Oriented Programming (OOP) Basics CSCI 161 Introduction to Programming I Overview Chapter 8 in the textbook Building Java Programs, by Reges & Stepp. Review of OOP History and Terms Discussion of
More informationCSE 341, Autumn 2015, Ruby Introduction Summary
CSE 341, Autumn 2015, Ruby Introduction Summary Disclaimer: This lecture summary is not necessarily a complete substitute for atting class, reading the associated code, etc. It is designed to be a useful
More informationMozart System Limitations for Version (draft)
Mozart System Limitations for Version 1.3.0 (draft) Peter Van Roy and Seif Haridi April 28, 2004 In der Beschränkung zeigt sich erst der Meister. Within limitations the Master is first revealed. Johann
More informationCSC102 INTRO TO PROGRAMMING WITH PYTHON REVIEW MICHAEL GROSSBERG
CSC102 INTRO TO PROGRAMMING WITH PYTHON REVIEW MICHAEL GROSSBERG MATERIAL EVERYTHING LECTURES HOMEWORKS TEXTBOOK (ALL OF IT) MOSTLY PYTHON 2.6 SOME C++ POTENTIALLY: TRANSLATE PYTHON PROGRAM TO C++ FORMAT
More informationVARIABLES AND TYPES CITS1001
VARIABLES AND TYPES CITS1001 Scope of this lecture Types in Java the eight primitive types the unlimited number of object types Values and References The Golden Rule Primitive types Every piece of data
More informationCS558 Programming Languages. Winter 2013 Lecture 3
CS558 Programming Languages Winter 2013 Lecture 3 1 NAMES AND BINDING One essential part of being a high-level language is having convenient names for things: variables constants types functions etc. classes
More informationFunctions and Decomposition
Unit 4 Functions and Decomposition Learning Outcomes Design and implement functions to carry out a particular task. Begin to evaluate when it is necessary to split some work into functions. Locate the
More informationRun-time Environments - 3
Run-time Environments - 3 Y.N. Srikant Computer Science and Automation Indian Institute of Science Bangalore 560 012 NPTEL Course on Principles of Compiler Design Outline of the Lecture n What is run-time
More information: Intro Programming for Scientists and Engineers Final Exam
Final Exam Page 1 of 6 600.112: Intro Programming for Scientists and Engineers Final Exam Peter H. Fröhlich phf@cs.jhu.edu December 20, 2012 Time: 40 Minutes Start here: Please fill in the following important
More informationObject-Oriented Programming (OOP) Fundamental Principles of OOP
Object-Oriented Programming (OOP) O b j e c t O r i e n t e d P r o g r a m m i n g 1 Object-oriented programming is the successor of procedural programming. The problem with procedural programming is
More informationCompuScholar, Inc. Alignment to Nevada "Computer Science" Course Standards
CompuScholar, Inc. Alignment to Nevada "Computer Science" Course Standards Nevada Course Details: Course Name: Computer Science Primary Cluster: Information and Media Technologies Standards Course Code(s):
More informationUser Defined Types. Babes-Bolyai University Lecture 06. Lect Phd. Arthur Molnar. User defined types. Python scope and namespace
? User Defined Types Babes-Bolyai University arthur@cs.ubbcluj.ro Overview? 1? 2 3 ? NB! Types classify values. A type denotes a domain (a set of values) operations on those values. ? Object oriented programming
More informationStructured Programming
CS 170 Java Programming 1 Objects and Variables A Little More History, Variables and Assignment, Objects, Classes, and Methods Structured Programming Ideas about how programs should be organized Functionally
More informationCS304 Object Oriented Programming Final Term
1. Which of the following is the way to extract common behaviour and attributes from the given classes and make a separate class of those common behaviours and attributes? Generalization (pg 29) Sub-typing
More informationinside: THE MAGAZINE OF USENIX & SAGE August 2003 volume 28 number 4 PROGRAMMING McCluskey: Working with C# Classes
THE MAGAZINE OF USENIX & SAGE August 2003 volume 28 number 4 inside: PROGRAMMING McCluskey: Working with C# Classes & The Advanced Computing Systems Association & The System Administrators Guild working
More informationWeek 8 Lecture: Programming
Week 8 Lecture: Introduction to Object Oriented Programming Introduction to Programming for GIS & Remote Sensing GEO6938 1469 GEO4938 147A Objects: You ve Been Exposed! Modularization, you know about it
More informationObject Oriented Programming
Object Oriented Programming Objectives To review the concepts and terminology of object-oriented programming To discuss some features of objectoriented design 1-2 Review: Objects In Java and other Object-Oriented
More informationTAIL RECURSION, SCOPE, AND PROJECT 4 11
TAIL RECURSION, SCOPE, AND PROJECT 4 11 COMPUTER SCIENCE 61A Noveber 12, 2012 1 Tail Recursion Today we will look at Tail Recursion and Tail Call Optimizations in Scheme, and how they relate to iteration
More informationSpring 2003 Instructor: Dr. Shahadat Hossain. Administrative Matters Course Information Introduction to Programming Techniques
1 CPSC2620 Advanced Programming Spring 2003 Instructor: Dr. Shahadat Hossain 2 Today s Agenda Administrative Matters Course Information Introduction to Programming Techniques 3 Course Assessment Lectures:
More informationGarbage Collection (1)
Coming up: Today: Finish unit 6 (garbage collection) start ArrayList and other library objects Wednesday: Complete ArrayList, basics of error handling Friday complete error handling Next week: Recursion
More informationCS 170, Section /3/2009 CS170, Section 000, Fall
Lecture 18: Objects CS 170, Section 000 3 November 2009 11/3/2009 CS170, Section 000, Fall 2009 1 Lecture Plan Homework 5 : questions, comments? Managing g g Data: objects to make your life easier ArrayList:
More information1: Introduction to Object (1)
1: Introduction to Object (1) 김동원 2003.01.20 Overview (1) The progress of abstraction Smalltalk Class & Object Interface The hidden implementation Reusing the implementation Inheritance: Reusing the interface
More informationAggregation. Introduction to Computer Science I. Overview (1): Overview (2): CSE 1020 Summer Bill Kapralos. Bill Kapralos.
Aggregation Thursday, July 6 2006 CSE 1020, Summer 2006, Overview (1): Before We Begin Some administrative details Some questions to consider Aggregation Overview / Introduction The aggregate s constructor
More informationAssignment II: Calculator Brain
Assignment II: Calculator Brain Objective You will start this assignment by enhancing your Assignment 1 Calculator to include the changes made in lecture (i.e. CalculatorBrain, etc.). This is the last
More informationCSE450. Translation of Programming Languages. Lecture 11: Semantic Analysis: Types & Type Checking
CSE450 Translation of Programming Languages Lecture 11: Semantic Analysis: Types & Type Checking Structure Project 1 - of a Project 2 - Compiler Today! Project 3 - Source Language Lexical Analyzer Syntax
More informationRecall. Key terms. Review. Encapsulation (by getters, setters, properties) OOP Features. CSC148 Intro. to Computer Science
CSC148 Intro. to Computer Science Lecture 3: designing classes, special methods, composition, inheritance, Stack, Sack Amir H. Chinaei, Summer 2016 Office Hours: R 10-12 BA4222 ahchinaei@cs.toronto.edu
More informationProgramming, numerics and optimization
Programming, numerics and optimization Lecture A-4: Object-oriented programming Łukasz Jankowski ljank@ippt.pan.pl Institute of Fundamental Technological Research Room 4.32, Phone +22.8261281 ext. 428
More informationG Programming Languages - Fall 2012
G22.2110-003 Programming Languages - Fall 2012 Lecture 2 Thomas Wies New York University Review Last week Programming Languages Overview Syntax and Semantics Grammars and Regular Expressions High-level
More informationWeeks 6&7: Procedures and Parameter Passing
CS320 Principles of Programming Languages Weeks 6&7: Procedures and Parameter Passing Jingke Li Portland State University Fall 2017 PSU CS320 Fall 17 Weeks 6&7: Procedures and Parameter Passing 1 / 45
More informationPREPARING FOR THE FINAL EXAM
PREPARING FOR THE FINAL EXAM CS 1110: FALL 2017 This handout explains what you have to know for the final exam. Most of the exam will include topics from the previous two prelims. We have uploaded the
More informationHomework notes. Homework 2 grades posted on canvas. Homework 3 due tomorrow. Homework 4 posted on canvas. Due Tuesday, Oct. 3
References Homework notes Homework 2 grades posted on canvas Homework 3 due tomorrow Homework 4 posted on canvas Due Tuesday, Oct. 3 Style notes Comment your code! A short line of comments per logical
More informationShort Notes of CS201
#includes: Short Notes of CS201 The #include directive instructs the preprocessor to read and include a file into a source code file. The file name is typically enclosed with < and > if the file is a system
More informationCSE 100: C++ TEMPLATES AND ITERATORS
CSE 100: C++ TEMPLATES AND ITERATORS Announcements iclickers: Please register at ted.ucsd.edu. Start ASAP!! For PA1 (Due next week). 10/6 grading and 10/8 regrading How is Assignment 1 going? A. I haven
More informationObject Oriented Programming #10
Object Oriented Programming #10 Serdar ARITAN Biomechanics Research Group, Faculty of Sports Sciences, and Department of Computer Graphics Hacettepe University, Ankara, Turkey 1 Simple programming tasks
More informationSoftware Architecture (Lesson 2) Object-Oriented Paradigm (1)
Software Architecture (Lesson 2) Object-Oriented Paradigm (1) Table of Contents Introduction... 2 1.1 Basic Concepts... 2 1.1.1 Objects... 2 1.1.2 Messages... 3 1.1.3 Encapsulation... 4 1.1.4 Classes...
More informationThe Pyth Language. Administrivia
Administrivia The Pyth Language Lecture 5 Please make sure you have registered your team, created SSH keys as indicated on the admin page, and also have electronically registered with us as well. Prof.
More information