Welcome to
CS-IT 114 Introduction to Java
Spring 2006
Namita Singla
Department of Computer Science
University of Massachusetts Boston
Primary Goals
• A student who successfully completes CSIT 114 should be able to:
– Understand and apply Java primitive data
types
– Understand and apply basic java statements
and control structures
– Write simple Java methods that call methods
of other Java objects
– Be prepared for CS-IT 115
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Secondary Goals
• The theme of Spring 2006 CS-IT 114 is
writing small java programs.
• A student who successfully completes
Spring 2006 CS-IT 114 should understand:
– Java variables
– Control structures
– Algorithms for Image manipulation
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CS-IT 114/5 and CS 110
• Alternative sequences for beginning Computer Science students
– Both cover the same material
– Both provide a strong foundation for programming and Computer
Science
• CS 110
– One semester course
– Appropriate for students with some programming background
• in any language
– Prerequisite: Math 140 or placement exam
• CS-IT 114 & CS-IT 115
– Two Semester Sequence
– Appropriate for students with little or no programming background
– Prerequisite: Math 130 or placement exam
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Web Page
• http://www.cs.umb.edu/csit114
• The source for all things CS-IT 114
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Schedule
Syllabus
Homework assignments
Lecture slides
Contact information
…
• By taking this course, you acknowledge that you are
reading the web site
– You are responsible for knowing what is there
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Namita Singla
• Call me “Namita”
• Masters in CS from IIT,
Kharagpur, India
• Working on Ph.D. at UMB
• Third year of teaching
• CS Career:
– Did Bachelors and Masters
in CS
– Teaching in India
– Working on Ph.D. in the
field of Data Mining with
Prof. Simovici.
• Research Interests
– Data Mining
– Machine learning
– Semantic Modeling in
Databases
• Contact Information
– Office: S-3-133
– Office Hours
• Tuesday and Thursday
2:30-3.30PM
– Email singlanamita@yahoo.com
– Phone: 617 287 6482
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Teaching Assistants
• TAs
– TBA
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Textbook
• Textbook
– JSS – fourth edition
• Previous editions are
not sufficient
– http://duke.csc.villano
va.edu/jss1/index.html
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Other Materials
• Some RW storage device (every class)
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Room
• We meet Tuesdays and Thursdays 4.005.15PM
– H03-009A White Lab
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Grades
• Three components of your final grade:
– Classroom work – 10%
– Projects – 30%
• Approximately 8 programming projects during the
semester
• Pairs or individual
– Exams – 60%
• Midterm 1 – 20%
• Midterm 2 – 20 %
• Final – 30%
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Collaboration
• You can work individually or in teams of 2
for every assignment.
• If you work in a team of 2, each individual
must submit a statement of
– My role and contribution to the project
– My partner’s role and contribution to the
project
• Each teammate will receive the same
grade for the project
– Unless there is a disparity in the contributions
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Exams
• Exam Grade
– 60 percent of your final grade
• Two exams
– Midterm 1&2 – 20 percent of your final grade each
– Final Exam – 20 percent of your final grade
• To get a late exam, you need a documented excuse
– Within 2 days after the exam
• Final exams are in May 15-19, 2006
– You must be at the scheduled exam
– You cannot get an earlier exam if you are traveling
– Make your travel plans accordingly
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Final Grade
• Your final grade will be
determined from the
sum of your homework
and exam grades
• Passing is 60%
• You also must pass the
exam portion to pass
the course
– You need at least 60% of
the total exam points
• If P is your percent grade,
your letter grade will be:
P ≥ 93
A
90 <= P < 93
A-
87 <= P < 90
B+
83 <= P < 87
B
80 <= P < 83
B-
77 <= P < 80
C+
73 <= P < 77
C
70 <= P < 73
C-
67 <= P < 70
D+
63 <= P < 67
D
60 <= P < 63
D-
P < 60
F
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Honesty
• Cheaters will be caught
– All assignments are to follow collaboration guidelines
– All exams are to be your own work
• Zero-tolerance policy for cheating
– You cheat – you fail the course
– No second chances
• See the code of student conduct
– http://www.umb.edu/student_services/student_rights/code_conduct.html
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Acknowledging Sources
• You must acknowledge any source that provided
intellectual content to your assignment
– You then must explain your contribution
• Example:
– I used code from http://chayden.net/eliza/Eliza/ in
creating my artificial psychiatrist program. I added
functionality to react in ways a CS student would
understand, such as “how long have you felt this
special bond between you and the operating
system?”
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Withdrawals and Incompletes
• Dates
– Add/Drop ends
• January 30, 2006
– Withdrawal Deadline
• April 6, 2006
– Pass/Fail Deadline
• April 6, 2006
• Note: You can only get an incomplete if you are
passing the course and cannot complete the course
– Not if you are failing and want to take the course again
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Students with Disabilities
• If you have a documented disability and
need adaptation:
– Contact Ross Center for Disability Services
• Campus Center 2nd Floor Room 2010
• 617 287 7430
– Obtain an adaptation recommendation
– See me to discuss the recommendation
– Best before the drop/add date
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Getting Extra Help
• The Math Resource Center offers tutoring
– 30 Minute Sessions
– Schedule TBA
– By appointment only
– Student Center, 1300 Street, Room 401
– Call 617-287-6486
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Learning to program
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Lots of fun
Practical
Hard, time consuming
Exercise in reading, writing, thinking
Key is practice
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Teaching/learning style
• To learn a language well, live in a land
where it’s spoken – anxiety producing, but
efficient!
• Learn to write by reading and writing about
what you learn
• 60% of a lot is more than 100% of a little
• Ask questions (to slow me down)
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Why Java?
• Fashionable, modern (for good reasons)
• Object oriented: when you have designed the
architecture a program almost writes itself
• Portable: the same Java code can run on any
computer.
• Well designed:
– easy to learn
– hard to make serious mistakes
– prebuilt objects plug into your programs
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Types of Software (Programs)
• Computers are very powerful pieces of
hardware that can’t do much useful work
until they are properly programmed
• There are three different types of software:
– Operating Systems
– Application Programs
– Software Development Tools (or Kits)
• As a computer programmer, you may need
to write any or all three types of programs
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Operating System Programs
• “O/S” programs control the hardware and
allow application programs to be executed
• An O/S is usually built to run on a specific
underlying hardware platform.
• Generally these are the most complex
types of programs to write and test
• Examples:
– M/S DOS, Windows, UNIX, Linux, Solaris, etc.
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Application Programs
• “Apps” perform useful work for their users
• Apps are usually built to run on a specific
operating system (and specific underlying
hardware platform)
• Users typically need to provide a lot of
information about their job tasks for a
programmer to write a good application
program for that purpose
• Examples:
– Word, Excel, PowerPoint, Netscape, etc.
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Software Development Tools
• Software Development Tools or Kits (SDK’s)
are specialized application programs that
allow programmers to write and test programs
• Experienced programmers generally prefer an
“Integrated Development Environment” (IDE)
• Examples (that we’ll be using in this course):
– Sun’s Java SDK (sometimes called JDK)
– Dr Java IDE
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Styles of User Interface
• There are two predominant styles of User
Interface for any type of program:
– Command Line Interface (CLI)
– Graphical User Interface (GUI)
• As a computer programmer, you must be
able to use and write programs for both
styles of user interface
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Software Development Tools
• Using Sun Java SDK alone
Command Line Interface
Programmer
Editor
Source
File(s)
(.java)
Compiler
(javac)
Class
File(s)
(.class)
Virtual
Machine
(java)
Program
executes
Parts of Sun Java SDK
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Using Sun Java SDK Alone
• Example DOS Commands and Parameters
C:\ > edit HelloWorld.java
(Create/edit “source file” in an external window)
C:\ > javac HelloWorld.java (creates .class file)
C:\ > java -classpath … HelloWorld
Hello World
C:\ > exit
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Software Development Tools
• We will use a combination of the Dr Java IDE
and the Sun Java SDK
Graphical User Interface
Dr Java IDE
Edit
Build
Run
Source
File(s)
(.java)
Compiler
(javac)
Programmer
Class
File(s)
(.class)
Virtual
Machine
(java)
Program
executes
Parts of Sun Java SDK
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Program Development Steps
• Classical “Waterfall” Development Steps
Edit and save
source code
Errors
Build source code
to create program
Errors
Run program and
evaluate results
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Errors
• A program can have three types of errors:
• The IDE editor and/or compiler will find syntax errors and
other basic problems (compile-time errors)
– If compile-time errors exist, an executable version of the program
is not created
• A problem can occur during program execution, such as
trying to divide by zero, which causes a program to
terminate abnormally (run-time errors)
• A program may run, but produce incorrect results,
perhaps using an incorrect formula (logical errors)
Georgia Institute of Technology
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