Lecture#20

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Graphics, Classes, and Objects

Example: Using Recursion
Serpinsky.java, Serpinsky.html
Go Through Design Process
Speed of Display: Slowing it Down
Other Methods
- Creating new colors
  Color blah; blah = newColor(100, 100, 100);

Simulation

Simulation: Motivation

Optimization, Simulation: Biggest Dog Lot

build many different models; choose best

simulate, using program: use loops

Build Dog Lot.                     x    |
Put fence next to wall.         ********|
Have one roll of fencing.       *       |
                                *       |
                             y  *       |
                                *       |
                                *       |
                                *       |
                                ********|
                                   x    |

Program
Fence.java, Fence.html
How Could We Autmoate Process
Other Roles For Simulations
- Virtual Reality
Microelectronics: the Chip
- Yield
Simulation in Microelectronics
- Process
Games that are Simulations
- Can be real training tools

Software Engineering

Engineering a Program - Programming in the Large
Software Products for Commercial/Industrial Use
- Follow-on products
Program Life Cycle
- Maintenance and Upgrade
Understanding Problem / Specifications
Debugging
Correctness
- Very hard
Documentation
- Manuals
  - Software Logic/Technical Manual
Productivity
15 LINES OF CODE/DAY
Many People
- Creator Independence
Organizational Schemes
- Chief Programmer Team
Programming Tools (CASE)