Introduction to Computer Programming I CSE 113 Gaurav Kumar

CSE 113 – Introduction to Computer Programming I Instructor: Gaurav Kumar Office: 113V Davis Hall Email: gauravku@buffalo.edu Email you send me should be from your UBIT email account and should include your full name and which course you are taking.

CSE 113 – Introduction to Computer Programming I Office Hours Monday 12:00 - 1:00PM Wednesday 12:00 - 1:00PM

Information on the Web All course content will be on the course website: http://www.buffalo.edu/~gauravku/summer/CSE113 UBLearns will be used to post course grades.

Course Structure Lecture (6 hours each week) Monday, Wednesday 2:00 PM – 4:55 PM Recitation/Lab (2 hours each week) Monday, Wednesday 5:00 – 5:50 PM You should be registered for a recitation section and a lecture. Recitations do not meet on 06/25.

Course Description and Prerequisites This course is an introduction to computer programming for non-majors.Intended computer science or computer engineering students should not take this course. There are no prerequisites for this course, but you should have some familiarity with a computer (that is, you should have used one before).

Course Grades 45% - Exams 35% - Programming Exams (2) Three in-class exams. Dates will be posted on the course website. 35% - Programming Exams (2) Two practical exams. Dates will be listed on course website. 20% - Programming Assignments 6 lab assignments each worth 2.5% of your grade. One to 6 practice assignments worth a total of 5% of your course grade.

Textbook Michael Kölling – Introduction to Programming with Greenfoot: Object oriented Programming in Java with Games and Simulations The package (paper book and eBook) is available at the University Bookstore, Greeks and Sneaks, Amazon.

Course Grades Important Note: If you do not attempt the second practical exam, the highest grade you can earn in the course is an F. You will not be allowed to take the second practical exam if your grade on ANY of the 6 programming assignments is below 50%.

Letter Grades There is no curve on the course grades. If your average falls in between the cutoffs, that is your grade. Score 90-100 85-89 80 –84 75 –79 70 –74 65 –69 60 –64 55 –59 50 –54 0 –49 Grade A A- B+ B B- C+ C C- D F

Course Policies Re-grading – any questions about graded work must be raised within one week of the return of the work. Incompletes – we will follow the university’s policy on incompletes –unless you meet the criterion, you will not get an incomplete. Disability Services – If you are registered, please bring me the letter indicating your accommodations. Athletics – If you are an athlete, please come to speak with me about how that will effect this course this semester.

Course Policies Disruption/Behavior in the Classroom Take note of the University’s policy on this issue (in syllabus) Be respectful of each other Academic Integrity Breaches of academic integrity will be investigated and punishments imposed in accordance with the University’s policies AND my department’s policies. My department’s policy is that ANY breach of academic integrity is punished with an F in the course (no more lenient punishments allowed).

FAQ Where are the slides posted?

CSE 113 - Announcements Pick up (and READ) syllabus if you have not already done so. No recitations meet today.

Quiz 1 What is Computer Programming ? Convincing the computer to never freeze Setting the alarm on a computer Telling the computer what to do through a special set of instructions Speeding up your computer CSE 113

Quiz 1 What is Computer Programming ? Convincing the computer to never freeze Setting the alarm on a computer Telling the computer what to do through a special set of instructions Speeding up your computer CSE 113

What Computer Understands ? CSE 113

What Computer Understands ? CSE 113

What Computer Understands ? CSE 113

What Human Understand? CSE 113

What Human Understand? CSE 113

What Human Understand? CSE 113

Solution Bridge – Call it a Translator CSE 113

Flow Compiler Object Code Source Code Linker Library Executable Code High Level Language Machine Language CSE 113

Actual Bug found in Mary II , a Computer in Harvard Lab CSE 113

Architecture Instructions Memory Instr1 Instr2 Instr3 Instr4 …. ALU Control Unit Instructions Instr1 Instr2 Instr3 Instr4 …. Input Output PC CSE 113

Terms Algorithm – Recipes / Set of steps Source code - Actual text used to write the instructions for a computer program Compiler - software tool that translates source code into data that the computer can understand Data type - classification of pieces of information in a program Variable - container which represents a value in a program Constant – It’s a CONSTANT CSE 113

More Terms Conditional - Set of code that will execute only if a certain condition is true Array - A list of related values Loop - Segment of code that executes repeatedly Function - Set of code used to carry out specific tasks Class - Template for a real world object to be used in a program CSE 113

Syntax vs Semantics Syntax – Not abiding by the guidelines/ set of rules Semantic – Meaningful. ( Logical ) Cow Dog Giraffe – Syntax Error for writing a sentence in English Language My desk’s name is Gaurav – Semantically Wrong CSE 113

Quiz 2 Instructions Code A compiler An algorithm Ask user for a number, ask user for another number, multiply the two numbers, print result.. What do you call this set of instructions? Instructions Code A compiler An algorithm CSE 113

Quiz 2 Instructions Code A compiler An algorithm Ask user for a number, ask user for another number, multiply the two numbers, print result.. What do you call this set of instructions? Instructions Code A compiler An algorithm CSE 113

Programming Language Language we can use to write computer programs. Similar to and different from natural language

Similarities to Natural Language Syntax - Grammar Semantics - Meaning Written down Read

Differences from Natural Language Rarely spoken

Tools Editor – Place to type the program Compiler - Translator Execution Environment