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Welcome to ENGR 2304/COSC 1336 Engineering Programming

SWTJC STEM . Welcome to ENGR 2304/COSC 1336 Engineering Programming. Want to be a “Lean, mean programming machine . . .”. Chapter 1-1 cg 1. SWTJC STEM . Welcome to ENGR 2304/COSC 1336 Engineering Programming. My name is Dick Whipple BSEE, MSEE from UH

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Welcome to ENGR 2304/COSC 1336 Engineering Programming

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  1. SWTJC STEM Welcome to ENGR 2304/COSC 1336 Engineering Programming • Want to be a “Lean, mean programming machine . . .” Chapter 1-1 cg 1

  2. SWTJC STEM Welcome to ENGR 2304/COSC 1336 Engineering Programming • My name is Dick Whipple • BSEE, MSEE from UH • Designed and programmed computers for 25 years • The course, ENGR 2304/COSC 1336 . . . • Is designed as a first programming course. • Is widely accepted for transfer. • Will use Java as the programming language. • Will focus on engineering problem solving. • Is WebCT enhanced with lab on Internet. Chapter 1-1 cg 1

  3. SWTJC STEM • Objectives for Thursday • Access course on my websitehttp://tech.swtjc.net/whipple_online/ • Logon to WebCT & this class http://70.241.209.12/webct/public/home.pl • Add both links to your favorites! • Review the syllabus • Start Assignment 1 • Read Chapter 1-1 of the text, Java Software Solutions by Lewis and Loftus • Install JBuilder from CD-ROM Very Important Information Chapter 1-1 cg 1

  4. SWTJC STEM • Attend class regularly • Class begins promptly At 8:00 AM • Class WebCT enhanced including . . . • Access to study materials • Lecture PowerPoints • Videos • Other readings • Complete/submit lab assignments Class Attendance Chapter 1-1 cg 1

  5. SWTJC STEM • Read and follow instructions to the letter. • Read and study all assigned “Text Readings”. • Research the Internet as directed. • Utilize WebCT as an enhancement to the course. • Ask questions when you don’t understand. • Complete work on time and without weak excuses. • Take your first steps as a “Professional”! Demonstrate Responsibility Chapter 1-1 cg 2

  6. SWTJC STEM "There is nothing magic about computers.  Any answer that a computer can arrive at could also be arrived at by a human if he/she lived long enough, had enough pencils, etc.  What's important to remember is that, regardless of the speed at which a computation is done, the process is a straightforward, one step at a time, matter." Computers Are Not Magic "That isn't to say that a person or persons can solve any problem a computer can.  Sometimes temporal (time) problems are a part of the problem.  The numbers which tell the rockets of a space ship what to do after the first stage lets go can't take six months for a human to compute with paper and pencil.  If more than a second or so is required, a satellite may be falling down someone's chimney." Michael Kennedy and Martin B. Solomon Chapter 1-1 cg 3

  7. SWTJC STEM "A person who wants to use a computer must learn to be precise.  One does not communicate with a computer by hand waving and mumbling.  A computer can be of service only if it is instructed carefully and according to preset rules." Michael Kennedy and Martin B. Solomon Communicating with Computers • As a student in ENGR 2304, I expect you to follow this admonition to the letter. • If you are not willing to do so, this class may not be for you! Chapter 1-1 cg 3

  8. SWTJC STEM Purpose of a Programming Language • The purpose of a programming language is to facilitate communication between humans and computers. • Computers are very accurate and fast at following instructions, but understand only “bits and bytes”. • Humans know what instructions to give, but cannot easily give them to computers in “bits and bytes”. • Computer languages bridge the gap! Chapter 1-1 cg 3

  9. SWTJC STEM Examples of Programming Languages • Java, Visual Basic, & C++ are multipurpose languages. • Fortran & Aida are scientific languages. • Cobol is a business language. • Assembly languages create fast, compact code for 3D animation and gaming. • Markup languages like HTML are Internet based. • Scripting languages like JavaScript perform utility duty. Chapter 1-1 cg 3

  10. SWTJC STEM History of Java • Developed at Sun Microsystems in early 1990’s. • Development team led by James Gosling. • Originally called Oak and used in embedded consumer electronic applications. • In 1995 renamed Java and redesigned for Internet applications. • Gained renown as a general purpose programming language. Chapter 1-1 cg 4

  11. SWTJC STEM • Simple, modeled after C++ but easier to use • Object oriented, not procedural. • Distributed, adaptable to networking environments • Interpreted, runs on almost all computers • Robust & reliable; emphasizes error checking & good habits • Secure, will not damage a computer • Architecture neutral, platform independent • Portable, runs without being recompiled • Performance good though not the fastest • Multithreaded, performs several tasks at once • Dynamic, adapts to evolving environment Characteristics of Java Chapter 1-1 cg 5

  12. SWTJC STEM Java’s Relationship with World Wide Web • HTML is the authoring language for WWW. • Java programs run from browser. • Java makes the web environment “smarter”. • Java adds responsiveness and interactivity. • Java uses modern GUI interface. • Java enhances web graphics. • Java allows the web page to respond to user events. Chapter 1-1 cg 6

  13. SWTJC STEM Java Development Environments • Sun Microsystems provides JDK (Java Toolkit) • JDK is basic and simple, but inefficient as design tool. • Other environments are better • NetBeans from Sun • JBuilder from Borland (we will use this!) • Visual Café from Webgain • Visual Age from IBM • Visual J++ from Microsoft Chapter 1-1 cg 7

  14. SWTJC STEM NetBeans provides an IDE (Integrated Development Environment) that is . . . IDE NetBeans • Easy to learn • Simple to use • Adaptable to user requirements • Readily navigated to access . . . • packages • projects • programs • classes • code elements Chapter 1-1 cg 7

  15. SWTJC STEM • Download NetBeans from:http://java.sun.com/javase/downloads/netbeans.html • Run the “.exe” file • You’ll be ready to “Run” your first program in not time!. Installing NetBeans Chapter 1-1 cg 8

  16. SWTJC STEM Elements of AppBrowser Window Chapter 1-1 cg 9

  17. SWTJC STEM • Application - A stand alone program written with a high level language such as Java. • Executed from the computer by a Java interpreter • Not subject to security restrictions • Must contain a “main” method • Applet - Special kind of Java program that runs from a web browser or applet viewer. • Subject to security restrictions • Cannot make changes to user’s system • Cannot read or write files • Cannot transmit computer viruses Types of Java Programs Chapter 1-1 cg 10-14

  18. Packages - Collection of classes (Programs) Classes - Collections of data and methods that operate on data Methods - Collections of statements that operate ondata Variables - Stores dataConstants - Stores data that doesn’t change Literals - Explicitly given data SWTJC STEM Java Program Components Java’s programming components: Data{ Chapter 1-1 cg 10-14

  19. SWTJC STEM Java Programming Process • Create source code. • Programmer creates source. • Stores in filename.java. • Compile source. • Converts source code to bytecode. • Stores in filename.class. (Ready to execute.) • Execute bytecode in filename.class. Chapter 1-1 cg 10-14

  20. SWTJC STEM Steps to Create a Program • Create a Java project. • Create a Java application program. • Create a new class. • Create the main method. • Compile and execute – “Run” the application. Chapter 1-1 cg 10-14

  21. SWTJC STEM /* My First Program */ public class HelloWorld { public static void main(String[] args) { // Declare variables // Input data // Process data // Output Results System.out.println("Hello World"); } } First Program with JBuilder Chapter 1-1 cg 10-14

  22. SWTJC STEM • Click on “Online Classes” at SWTJC’s homepage. • Click on “Class Schedule and find this class. • Link to my homepage and click on ENGR 2304. • Follow the instructions there for New Students. • Complete Assignment 1 by Thursday, February 4, 2010. What to do now? Chapter 1-1 cg 10-14

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