Transcript Optimizing Matrix Stability and Controllability

Honors 101, Fall 2006
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Please do not sit in back of room!
Lots of info on web page
Join the mailing list
Download Eclipse and start using it
Read the text book: we’ll quickly go
through Chapters 1-5
• COME TO CLASS AND PARTICIPATE!
• Attendance is required!
Introduction to Computer Science
• CS is lots of things
• Key to all sides of CS is learning to be a good
programmer
• Not easy to teach or learn; like writing,
comes with experience
• Experimentation is a crucial part of the
learning process
• Documentation is a critical part of
programming
Why Java?
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Relatively simple, but general-purpose
Object-oriented, but with imperative basics
Interpreted/Compiled
Robust/secure
Architectural-neutral/portable
High-performance
Multithreaded and distributed
Clean!
Powerful
API, Java 2SE, JDK, IDE and JVM
• The Application Programming Interface contains
many predefined “classes” (and “interfaces”) upon
which we will build. It is controlled by Sun.
• The Java 2 Standard Edition is the current language
standard (for applications and applets).
• The Java Development Kit from Sun is a set of
programs for developing, compiling and testing Java
programs. The current version is JDK 5.0 (often
called JDK 1.5).
• Integrated Development Environments, built on top
of the JDK, make using Java much more convenient.
We will use Eclipse (free, from IBM).
• The JDK compiles programs to “Java byte code”,
which are then executed on the Java Virtual Machine
by translating to “native” machine language.
Intro to Java: Fundamentals First
• Required text book by Liang
• Part I (chapters 1-6): Fundamentals of
Programming, that is using the traditional
imperative/procedural model
• Part II (chapters 7-11): Object-oriented
programming
• Part III (chapters 12-16): GUI programming
• Part IV (chapters 17-19): Exceptions, I/O,
recursion
• We’ll cover almost the whole book
Chapter 1: Introduction
• Please read it before next class.
• Intro to computers, number systems
and Java
Chapter 2: Data types and operations
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Please read this also before next class
Identifiers
Variables
Assignment statements, expressions
Primitive types, strings
Output: System.out.println
Input: JOptionPane.showInputDialog
Chapter 3: Conditional statements
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Read as soon as possible
Boolean type
If statement
Switch statement
Precedence
Chapter 4: Loops
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Read as soon as possible
While loop
Do-while loop
For loop
Nested loops
Chapter 5: Static methods
• Read as soon as possible
• We’ll spend some time on this
Chapter 6: Arrays
• No rush to read this yet
• We’ll spend some time on this too
Applications and Applets
• A Java application is a stand-alone Java
program
• An applet is a Java program that can be
run from a web browser, using a
graphical user interface (GUI)
• Application programs can also use GUIs
(using AWT or Swing (better))
• Swing GUI classes all begin with J
Homework (Programming Assignments)
• Essential to do the homework on time
• Substantial part of grade will be based on
homework
• First assignment will be given next week
• Sometimes assignments will be multistaged
• Getting help from other students is OK ONLY
IF YOU DOCUMENT CLEARLY IN THE
COMMENTS EXACTLY WHAT HELP YOU GOT
AND FROM WHOM
• See departmental policy on cheating
• See me EARLY if you are having trouble
Placement
• Are you in the right class?
• You should have had some
programming experience and be eager
to learn
• You should not already be a Java
expert! If you are, let’s talk after class.
• If you’ve taken a Java course already,
let’s talk after class.
Eclipse
• State of the art, powerful, easy to use,
free
• Download it and run a SHORT program
before next class, and email it to me
Pitfalls to watch for using Eclipse
• Create ONE project the first time you use it.
Adding and deleting projects is asking for
trouble…
• Then create ONE new class, also giving it a
package name if you like..
• **** Make sure the class name starts with a
Capital letter! ****
• projectNames, packageNames and
identifierNames should start with lowerCase
• final variables (constants) should be in
UPPER_CASE
Running a Program
• Get the syntax bugs out first – you can see
immediately where the bugs are, if not how
to fix them
• When you run the program the first time, you
have to select your ClassName from the
menu that comes up: it won’t work if it does
not start with a CapitalLetter!
• ECLIPSE DEMO