Introduction to Computer Programming

1
Introduction to Computer Programming

• CS 126
• Lecture 8
• Zeke Maier

2
Plan for Today

• Questions
• Administrivia
• AD Exercises 4.2 4.3
• Developing
• Debugging
• Compound Data
• Assignment

3
Questions
4
Administrivia

• http//students.cec.wustl.edu/ejm3/
• Help Session 2-4 in Sever 201
• No office hours
• Quiz 1 Solutions
• Lab 1 Demo Results
• Remote Desktop
• TA Schedule?

5
AD Exercises 4.2 4.3

• http//students.cec.wustl.edu/ejm3/CS126/web/code
  .htmlconditionals

6
Developing

• Development Plan
• Write a method
• Write more
• Compile
• Fix syntax errors
• Fix semantic errors

• Development Plan
• Start with a work program
• Write a small logical block
• Compile test
• Fix errors

7
Debugging

1. Determine which type the error is
2. Compiler Errors

• Always debug the first error first!
• Error messages can be hard to understand, but
  normally there is useful information lurking
  inside

8
Compound Data
9
Assignments

• Lab 2 due Wednesday
• Readings
• Monday
• KG Notes