Midterm Review - Midterm Review Exam: - material from labs,...

Midterm Review
Exam:
- material from labs, lectures, and text through Chapter 8.3
- multiple choice, T/F, fill in the blank questions
- full class time on Thursday
- all answers should be found in textbook
Chapter 1 Summary:
- objects created from existing classes in Alice
- what does an object have?
o Center
o 6 directions/degrees of freedom: forward, back, left, right, up, down
- what can objects do?
o Perform actions (methods)
 Drag tiles
Chapter 2 Summary
- program is a set of instructions that tell a computer what to do
- problem solving process
o read scenario – understand problem
o design the solution – create storyboard
o code the solution – write method/convert into computer language
o test the solution- revise as needed
- ways to execute statements
o sequential- doInOrder
o parallel- doTogether
 specify several statements to execute at the same time
 looks like that when program is running
- comments explain program
o tells reader exactly what the code does
Chapter 3 Summary
- Methods are things object know how to do
- Creating methods
o Know for both Java and Alice
o Methods are named blocks of statement that are run when you use the tile
with the name of the method
o Block of code identified so it can be used from other parts of the code
o Will run when invoke it by name (send message to object to tell it to do
method)
- Method’s parameters
o Placeholders that take on a value when the method is called (invoked)
o