1. Introduction to Programming
COMP SCI 1MD3
Introduction to Programming
Sanzheng Qiao

2. A long journey begins with a single step
Understand how computers work
Utilize computers’ enormous power
First step
Basics of programming

3. What matters Logic: Know exactly what your program is supposed to do
Discipline: Consistent style, format
Documentation
Spacing, indentations
Line breaks
Positions of curly braces { }

4. Why bother? Who cares what a program looks like if it works?
Doesn’t it take too much time to make it pretty?
A well-written code is easier to read and to
understand, almost surely has fewer errors.
In the rush to get programs out the door to
meet some deadline, it’s easy to push style
aside, to worry about it later. This can be a
costly decision.

5. Emphasis Basics of programming, rather than Java specifics.
Writing better code from the beginning and improving it as it evolves.
Principles of programming style, clear, simple, straightforward logic, meaningful names, neat formatting, helpful comments, and consistency.