Transcript Zero to Java in Internet Time

Zero to Java in Internet Time
David Davenport
Computer Engineering Dept.,
Bilkent University, Ankara 06533 Turkey
email: [email protected]
Introduction
• Programming classes (mandatory!)
–
–
–
–
computer literacy
basic programming
object-oriented systems
event-driven GUI’s
• Desire
– get students up-to-speed quickly
– justify by focusing on engineering skills
What to Teach & Why
• Engineers today should
–
–
–
–
be technically competent
be able to communicate & work in team
be confident in locating & applying knowledge
be motivated to follow tech. & continue learning
• Programming as a vehicle
– form of communication, done in teams
– complex systems, mistakes cheap!
What to teach & Why
• Engineering relies on methodologies
– Only apparent for large problems!
• Teach
– OOP first?
– Structured programming first?
• Which language
– C/C++, Pascal/Delphi, etc.
– Java (consistent OOP, complex?, Internet)
Course Organisation
• First semester CS101
– conventional lecture/lab (text-based progs.)
– Robo & Jrobo… (concepts)
• Second semester CS102
– reduced lecture/lab (GUI progs.)
– Design project… (eng. skills)
• Software Quest
• InSites
Design Projects
• Semester-long group project
• Group & project selection
• Organisation
– Four stages: requirements, GUI,
detailed design, implementation
– submit report, make presentation, rewrite
• Use commercial IDE
• Tap enthusiasm, Internet, …
(don’t tell, they learn)
Tools: Robo
• Robo: little robot with pen…
• Basic commands: f(x), r(x), l(x) & p
• Interactive start…
• Reflection - need a easy life!
• Introduce
– comments, methods, parameters...
– top-down design, pre/post-conditions
• Design, not experiment (right-first-time)
Robo Examples
f(100)
r(45)
f(50)
r(30)
f(150)
r(120)
f(150)
r(120)
f(150)
r(90)
rect(a,b)
f(a)
r(90)
f(b)
r(90)
f(a)
r(90)
f(b)
r(90)
Tools: Robo
• The Robo environment...
Tools: JRobo
• OOP - natural view & facilitates reuse
• Examples - person, car, tv … & Robo
• JRobo class & use
• Adding methods & properties
• Composition - wallets & cellphones
• Inheritance & Polymorphism - scale & colour
• The JRobo environment...
Jrobo Examples
f, r, l, p
x,y draw
heading
f, r, l, p
f’
f’, r, l, p
rect, getDofM
x,y draw
heading,
dofM
rect
x,y draw
heading
getDofM
dofM
payout
recieve
cash
owner
Tools: JRobo
• The JRobo environment… (a full Java IDE)
– hide syntax at beginning, enforce good practice!
Concluding Remarks
• Use programming to teach engineering skills
• Tools help clarify concepts
• Projects help develop skills
– Napster & ICQ clones, physics & optics
workbenches, online games, shops & dating...
– Variable quality (focus more on design)
– but energy, enthusiasm & work evident!
• Java & Internet motivate
• Extra time & effort, but worth it?