1. COMP 110 Designing Programs Tabitha Peck M.S. January 16, 2008 MWF 3-3:50 pm Philips 367 1

2. Announcements Office Hours After Class Today Come if you don’t have jGRASP working Textbook 2

3. Questions? Why 8 bits in a byte? Any other questions? 3

4. Today in COMP 110 Writing Algorithms in pseudocode Encapsulation, polymorphism, and inheritance Variables, arguments, statements, and syntax 4

5. Algorithm A set of instructions for solving a problem 5

6. Pseudocode combination of code and English used to express an algorithm before writing algorithm into code 6

7. Vocabulary Variables - store a piece of data Statements - instructions to the computer Syntax - grammar rules for a language Arguments - information methods need to carry out its action 7

8. Encapsulation (Information Hiding) packing things up, only seeing part of what is going on 8

9. Polymorphism “many forms” Same instruction to mean same thing in different contexts. 9

10. Inheritance way of organizing classes. At each level classification becomes more specialized. 10 Sandwich Bread Sub PB&J Turkey Meatball Salami

11. Homework Program 1 is on the web page We will look at code in recitation that will help you

12. Friday Recitation (bring charged laptop) Lab 1 Programming help for Program 1 12