CSE 142, Spring 2021: Calendar
This is a rough sketch of the quarter that is likely to change. We can accurately predict the past, but predicting the future is hard! In particular, all future assignment dates should be considered tentative and subject to change.
Welcome; Course policies; Hello World program
Class recording
Slides (pptx)
Slides (pdf)
Code Examples and Supplemental Lesson
BJP 1.1-1.3
escape sequences; static methods
- write a simple Java program that produces console output using
System.out.println - recognize and correct structural redundancy
- define and call static void methods
Expressions; Variables; Types; for loops
- evaluate arithmetic expressions in Java
- define and use
intanddoublevariables
Precedence
Mod vs Integer Division
Poll Everywhere Answer
for loops; print statements
- write and trace the execution of
forloops
Poll Everywhere Answer
Nested for loops; print statements; Class constants
- write and trace the execution of nested
forloops - define and use class constants
Expressions; for loops
Parameters; Scope
- define scope
- define and call methods that take parameters
Parameter Mystery
Graphics
- write programs to produce graphical output using
DrawingPanel
Van Dimensions
DrawingPanel.java
More Graphics
- write more complex graphical programs
- perform iterative development to produce a more complex image
Van diagram 1
Van diagram 2
Van diagram 3
Parameters; DrawingPanel
Return values; Math class
- define and call methods that return values
- understand good functional decomposition
Scanner; Conditionals
- effectively use methods from the
Scannerclass to create interactive programs - define and use conditional (
if) statements
Paths of Execution
Compound conditionals; cumulative algorithms
- define and use compound conditionals
- choose the most appropriate conditional structure for a given problem
- describe and implement a cumulative algorithm
Return values; Conditionals; User Input
Chaining; Information flow; Strings; char
- recognize and avoid chaining
- compare and manipulate
Strings andchars
Chained Info Flow
Good Info Flow
Fencepost problems; while loops; sentinel loops
- define and use
whileloops - define and implement fencepost and sentinel loops
Fencepost
pseudorandomness, booleans
- generate pseudorandom numbers with
Random - work with
booleantypes
while loops; pseudorandomness; boolean
assertions
- understand and reason about a piece of code
Assertions Walkthrough
Review for Simulated Midterm
Token-based file input
- implement token-based file processing algorithms using
Scannermethods
Simulated midterm practice
Debugging (Optional Lecture)
Line-based file input; File output
- implement line-based file processing algorithms using
Scannermethods
Intro. to arrays
- define and use arrays
Arrays vs Variables
File processing
Array Traversals, reference semantics
- define and implement array traversals
- understand and use reference semantics when working with arrays
Array Simulation
Reference Mystery
Reverse Algorithm
Array Shifting
- define and implement array shifting algorithms
Object-oriented Programming, Fields, Instance Methods
- define and implement classes with object-oriented style
Arrays
Encapsulation, toString, Constructors
- understand and use encapsulation in good object-oriented design
- define and implement constructors and toString methods in classes
Inheritance
- define and implement the concept of inheritance
Critters
- implement Critters to participate in the Critters simulation
Object-oriented progamming; Critters
Polymorphism; ArrayList
- define and use polymorphism
- define and use
ArrayLists
No class - Memorial Day
Victory lap, Content Review
Content Review
Critter tournament