COMPSCI 101 S Principles of Programming Lecture 1 – Introduction

Learning outcomes  At the end of this lecture, students should be able to:  understand where to obtain information about CompSci 101  understand which parts of the CompSci 101 assessment contribute to the practical mark  understand which parts of the CompSci 101 assessment contribute to the theory mark  understand that to pass CompSci 101, both the practical part of the course and the theory part of the course need to be passed  understand an algorithm CompSci 1012

The CompSci 101 website  This is the address of the CompSci 101 website  Here you will find all the information about our course set up  Get used to looking at this website for information about lecture slides, lab documents, assignment resources, assessment, people involved in the course and lots more. CompSci 1013

People in this course Ann Cameron (Lab Supervisor) Phone: ext Room: 303S.479 CompSci 1014

People in this course  Angela Chang (Course Coordinator)   Phone: ext  Room: 303S.494  Office Hours: Open door policy – Visit any time  Adriana Ferraro   Phone: ext  Room: 303S.490  Dr Jing Sun   Phone: ext  Room: 303S.481 CompSci 1015

Lecture schedule  On the course information sheet there is a schedule of the lectures for CompSci 101. CompSci 1016

Lecture Slides  Lecture slides will be available on the web before each lecture. CompSci 1017

There is no textbook for CompSci 101  No textbook but we do have an online reference book, Think Python – How to think like a computer scientist.  Please be aware that we are teaching the CompSci 101 material in a different order to the ordering in this book. This book is a reference book, not a textbook for this course. CompSci 1018

 Labs start in the second week  Labs are held in room 279 (Building 303S) which is on the second floor of the Computer Science building.  There are 9 labs and worth 9% of your final mark.  At your lab time you will be given programming problems to solve within the 2 hours for your lab. More about labs CompSci 1019

Before the first lab  Visit the lab on Friday between 11am and 12:30pm.  Before the first lab you need to complete the lab preparation sheet (I will hand this out).  In order to fill the sheet you need to visit the CompSci 101 lab on Friday. CompSci 10110

Assignments  The assignments are worth 9% of your final mark.  Assignments give you the experience of solving problems on your own. Never share your code. Solve the problem on your own – discuss the assignment with others but never share code. CompSci 10111

Assignments  There are 4 assignments.  All assignments are due at 4:30pm on the due date.  The assignments are handed in using the Assignment Drop Box: CompSci 10112

Code Runner Exercises  There are 3 Code Runner Exercises and are worth 7% of your final mark.  All exercises are due at 4:30pm on the due date.  Exercises are to be completed using the Code Runner System: CompSci 10113

Plagiarism integrity.html Plagiarism: Any work that you take credit for, but which is done by someone else. This is treated very seriously in an academic environment. Plagiarism CompSci 10114

Academic Integrity academic-integrity.html CompSci 10115

Test  The test is worth 15% of your final mark  The test date and time is: Tuesday 5th May 6:30pm - 7:45pm  The test is 75 minutes long plus 5 minutes of reading time. Arrive at 6:20 because your reading time starts at 6:25pm.  More about this closer to the time. Angela the CompSci 101 course coordinator, if you are unable to attend the test CompSci 10116

Exam  The exam is worth 60% of your final mark. information/cs-examination-information.html CompSci 10117

Passing CompSci 101 PRACTICAL THEORY Test15% Exam60% Labs9% Code Runner7% Assignments 9% To pass the course you MUST pass the PRACTICAL (i.e. get 12.5 / 25) you MUST pass the THEORY (i.e. get 37.5 / 75) Assessment  CompSci 10118

The CompSci 101 website  Most of the resources you will need (e.g., lecture slides, lab material, assignments, course information) can be found on the CompSci 101 website: CompSci 10119

Cecil  On Cecil you will find:  your marks  class announcements  lecture recordings CompSci 10120

Computing resources Undergraduate Labs: There are demonstrators in these labs to help you This is a quiet lab GCL (room 091) – Ground Floor Computer Lab CompSci 10121

Learning outcomes for CompSci 101  determine the state of the program both during and after execution, given a code listing that may include functions and parameters, loops, conditionals and sequences,  implement a given algorithm using Python,  show that a program meets given specifications by writing appropriate tests,  provide a useful level of documentation, in the form of program comments, for all programs developed,  decompose a simple problem into several smaller tasks,  given a brief textual description of the problem,  compose functions that perform a specified task into a program that solves a given problem,  describe program design and syntax using written language, CompSci 10122

Algorithms  A finite set of steps that specify a sequence of operations to be carried out in order to solve a specific problem.  A better definition: An algorithm is a well-defined, unambiguous sequence of steps CompSci 10123

HOW TO GET TO UNI Algorithms – what kind of steps? Walk to the bus stop at the shops up the road Get on bus number "101" Pay the bus driver $3.50 Get off at the Symonds St bus stop Walk 200m to the Computer Science building sequential operations An algorithm is a well-defined, unambiguous sequence of steps CompSci 10124

Algorithms – what kind of steps? Open the front door IF it is raining THEN take an umbrella Walk down the driveway and turn left Walk 50m down the street An algorithm is a well-defined, unambiguous sequence of steps conditional operations HOW TO WALK TO THE BUS STOP CompSci 10125

Algorithms – what kind of steps? Open wallet WHILE you still haven't paid enough give the driver another coin Take a seat An algorithm is a well-defined, unambiguous sequence of steps iterative operations HOW TO PAY THE BUS FARE CompSci 10126

Basic programming steps  TASK ALGORITHM 1 design 2 coding 3 testing CODE PROGRAM CompSci 10127

Programming - Step 2 - write the code  We will use the Python programming language to implement our algorithms ALGORITHM 2 coding Python CODE CompSci 10128

Hangman | | | ========= Word: _ _ _ _ _ _ _ _ _ Letters Missed: Letters Guessed: Letters Available: abcdefghijklmnopqrstuvwxyz Enter a letter: a Enter a letter: d | | 0 | /|\ | / \ | | ========= Word: l a _ _ b o n e s Letters Missed: r m k c u d Letters Guessed: a e s n o l b Letters Available: fghijpqtvwxyz Sorry, you have lost in the game of Hangman... The word was lazybones CompSci 10129

Welcome to Tic Tac Toe! Do you want to be X or O: X The computer will go first. | | | | O | | | | | | What is your next move? (1-9): 5 TicTacToe  What is your next move? (1-9): 6 | | O | X | O | | | | O | X | X | | | | X | O | O | | The game is a tie! Do you want to play again? (yes or no): n CompSci 10130

What you need to do this week…  Go to our course website:   Download and Install Python (Version 3.x): 3.3 or 3.4   Download and Install Notepad++   Set up Notepad++ to run Python programs   Download Python reference book: Think Python   CompSci Add a command: Macro -> Run Python