Introduction to Computers and Programming Using Java -- Fall, 2007 Professor Deena EngelV22.0002: Section 1 Class Hours: TR 9:30-10:45, Room 109 CIWW
Email: [email protected] Office hours: Mondays 12:30 - 2:00; Tuesdays 11:00 - 12:30; Room 526, WWH
Course Objectives
Upon completing the course, you will understand Java programming
Primitive data types Java control flow structure Methods Arrays Java Applets
Course Objectives, cont.
You will be able to Write, compile and run JAVA programs. Create and use methods Develop Java applets Write interesting projects Establish a firm foundation on Java concepts
Course Text Book
Introduction to JAVA Programming, Sixth Edition, by Liang, Prentice Hall
Available at the NYU Bookstore Lectures in PowerPoint format and programs which we write in
class will be posted to the class website. Please keep up with the reading!
Book Chapters to be covered in this class:
Chapter 1 Introduction to Java Chapter 2 Primitive Data Types and Operations Chapter 3 Selection Statements Chapter 4 Loops Chapter 5 Methods Chapter 6: Arrays
Course Prerequisites Prerequisites:
No prior programming experience required (Really!!) Who should be taking this course:
students who want to switch to a computer science major students who want to take a computer science minor or a computer
applications minor (http://cs.nyu.edu/web/Academic/Undergrad/minors.html)
students who are interested in programming Who should NOT be taking this course
Students trying to get out of taking a math requirement. This class may be more difficult than the math you are trying to avoid.
You must get a C or better in this class to take further computer science classes as a major.
Course Web Site The course web site is available at:
http://www.cs.nyu.edu/courses/fall07/V22.0002-002/index.html The website contains the following information:
Administrative information Course Syllabus Homework assignments Class notes Class programs Sample exams Compiler instructions
Additional information on “BlackBoard”
There will be several items posted on the ITS “Blackboard” program:
The class email mailing list will be run from the Blackboard site
Assignment grades will be posted to the class Blackboard site to protect confidentiality
All other information about this course will be on the Computer Science Department home page for this course at http://www.cs.nyu.edu/courses/fall07/V22.0002-002/index.html
Software For the course, we will be using JCreator or NetBeans & SUN JDK software
to create, edit, compile and run our JAVA programs These programs are free and you can download and use them for your home
computer.
To download software for home use, follow information posted on the course website In order to use Jcreator in Windows, you need to download both JDK (Java
Development Kit) and the JCreator IDE (Integrated Development Environment).
Instructions are posted for NetBeans as well which runs on both PC and Mac All of these programs are free.
If you do not have your own computer, the computer labs on campus have all of the software that you will need.
Grading
Your grade will be determined as follows: Two Midterm exams (40%) Homeworks (20%) Final Exam (40%)
Homework•Ten points will be deducted for each class day late with a possible maximum of 30 points being deducted.
•Homeworks will not be accepted after the third class following its due date without special permission.
•For each assignment that you do not hand in within the time limit, your final grade will be lowered by one letter grade ( i.e., if you are averaging a B+, but you have missed 2 home works, your final grade will be B-).
•Submit the program via email to the grader (more on this later)
•Be sure to save copies of your programs to removable media or your NYU “home” account; computer crashes or lost programs are not valid excuses for not handing in an assignment!
A Word About Cheating For the purposes of this class, cheating is defined as:
Copying all or part of another student's homework, project or exam. Allowing another student to copy all or part of your homework, project, or
exam. Discussing homework concepts is fine, but you must submit your own
work Unless … If you work with a partner, you must both tell me and the
grader when the homework is submitted that you worked together and also write that into the comments in both texts of the program comments.
If you are caught cheating, you will receive an immediate FAILURE for the course.
Student Civility In an effort to make this class enjoyable for
everybody… Please be on time to class! Please do not talk to your friends and neighbors in class!
It disturbs everyone, and makes it hard to concentrate. If you have a question, just ask me!
Please turn your pagers and cell-phones off!
Getting Help: very important!!Whenever you have a question about the course material …please feel free to drop by during my office hours or write me an email message or call me on the phone. If at any time you feel that you are falling behind or are overwhelmed by the material, please let me know and I will be very happy to help you!
Help is always available! Option1: Come to my Office Hours
Mondays 12:30 - 2:00 and Tuesdays 11:00 - 12:30 Location: Room 526 Warren Weaver Hall If you cannot make my office hours, I will be happy to make an
appointment with you at another time.
Option 2: Write to me at [email protected] Option 3: Call me at 212-998-3131 Option 4: We will have tutors available in the lab and available by
email to help you with your work
What is a Computer?
Computer Device capable of performing computations and making logical
decisions Computers process data under the control of sets of instructions
called computer programs Hardware
Various devices comprising a computer Keyboard, screen, mouse, disks, memory, CD-ROM, and
processing units Software
Programs that run on a computer
Hardware Trends
Every year or two the following approximately double: Amount of memory in which to execute programs Amount of secondary storage (such as disk storage)
Used to hold programs and data over the longer term Processor speeds
The speeds at which computers execute their programs
Computer Organization Six logical units in every computer:
Input unit Obtains information from input devices (keyboard, mouse)
Output unit Outputs information (to screen, to printer, to control other devices)
Memory unit Rapid access, low capacity, stores input information
Arithmetic and logic unit (ALU) Performs arithmetic calculations and logic decisions
Central processing unit (CPU) Supervises and coordinates the other sections of the computer
Secondary storage unit Cheap, long-term, high-capacity storage Stores inactive programs
Evolution of Operating Systems Single_user Batch processing
Do only one job or task at a time Early Operating systems
Manage transitions between jobs (minimizing transition time between jobs) Increased throughput
Amount of work computers process Multiprogramming
Computer resources are shared by many jobs or tasks (users still waited a long time for their output)
Timesharing (access computers via terminals) Computer runs a small portion of one user’s job then moves on to service
the next user
Personal Computers Personal computers
Economical enough for individual Popularized by Steve Jobs and Steve Wozniak with the introduction of
the Apple in 1977. In 1981 IBM introduced the IBM personal computer using “off the shelf”
components. Distributed computing
Computing distributed over networks Client/server computing
Sharing of information across computer networks between file servers and clients (personal computers)
Programming languagesThree types of programming languages
Machine languages Strings of numbers giving machine specific instructions Example:
+1300042774+1400593419+1200274027
Assembly languages English-like abbreviations representing elementary computer operations (translated
via assemblers) Example:
LOAD BASEPAYADD OVERPAYSTORE GROSSPAY
High-level languages Codes similar to everyday English Use mathematical notations (translated via compilers) Example: grossPay = basePay + overTimePay
Other High-level Languages high-level languages
FORTRAN Used for scientific and engineering applications
COBOL Used to manipulate large amounts of data
Pascal Intended for academic use
Ada Used in Defense Department Applications
Structured Programming
Structured programming Disciplined approach to writing programs Clear, easy to test and debug and easy to modify
Structured programming is hard and takes time to master
The Key Software Trend: Object Technology
Objects Reusable software components that model items in the real world Meaningful software units
Date objects, time objects, paycheck objects, invoice objects, audio objects, video objects, file objects, record objects, etc.
Any noun can be represented as an object More understandable, better organized, and easier to maintain than
procedural programming
Good luck! I look forward to working with you!!
Please speak to me if you have questions or comments
Deena Engel (mail to: [email protected] or call at 212-998-3131)