Test1-333
Composition
(filled diamond) denotes a stronger relationship where destruction of the container implies destruction of the parts.
Aggregation
(unfilled diamond) is an association where the containing relation is loose and parts may survive the destruction of the outer containing object
What is the complete life cycle for the creating programs from earliest step to last?
1.Read the problem 2.Work sample cases to explore problem, generate test 3.cases for later, find issues and ambiguities 4.Propose data structure 5.Propose program modularity and flow 6.Code and debug 7.Test 8.Package and deliver 9.Acceptance testing (grading?) 10.Maintain (not usually done by classes)
What is a package? (in Java code, in file system , in jar)?
A collection of classes
What are commands?
Effects states and do not have a return value
Tool: Netbeans
Features: edit, compile, jar, javadoc, ...
What is a reference? Where are they used in Java?
A pointer;points to an object
What is JUnit?
A tool for testing methods
Mutable (String)
Able to be changed
"constants"
All CAPS
What are Streams?
An input source or an output destination;stdin, stdout, stderr
What is an object?
An instance of a class
What is the main purpose of the course? Other purposes?
Becoming familiar with Object Oriented Design and Object Oriented Programming as well as improve our project skills, presentation skills, and become familiar with ethics and intellectual property as applied to software engineering.
instance variables? private?
Camel case; Starting with lowercase;nouns
static variables? private?
Camel case; Starting with lowercase;static
methods? private?
Camel case; Starting with lowercase;verbs
Class private?
Camel case;Starting with an uppercase
Constructor? private?
Camel case;Starting with an uppercase
What is inheritance? What is the test for inheritance?
Specializes ;in the context of a subclass(child class);Java keyword "extends";applying the "is it specialization" test,
What is an abstract class?
a class that is declared abstract;it may or may not include abstract methods;cannot be instantiated, but they can be subclassed;allows you to not implement all methods
super() super.methods()
allows access to superclass's method from inside the overriding subclass method of the same name.
What are exceptions?
an attempt to help error handling without impacting visible algorithm.
What is in a .class file?
byte codes
System is a ____ and in, out, error are ___ ___ that are static
class;accessible objects
Java models _____ with _______.
everything;objects
Private
only visible in current class
Package
only visible in current class and classes that are in the same package
What is an array? How do you use it?
ordered collection of like items (primitives or objects);Access before or beyond the span of the array will be caught on occurence
Protected
package plus the subclasses of this class
Scope
private, [package], protected, public
(System.err)
standard error
(System.in)
standard in
(System.out)
standard out
What do all objects have?
state, behavior, identity
Public
visible to all
Immutable (String)
Not able to be changed
Don't put ___ in modeling classes
I/O
What are local (automatic) variables?
Inside methods
How do you write a JUnit test?
Java writes
Where are the math functions?
Located in the math class;math.util
What is testing?
Looking for problems in a code
What are queries?
Methods that do not change state and returns a variable
What is an interface?
Multiple inheritances without instance variables
Math.random returns what ?
Random numbers
What is JavaDoc?
Reads a carefully documented source and produce the documentation.
What is TDD?
Test Driven Design
What is Canvas, what goes on there for this course? What are your usage obligations/expectations?
The UAB Learning Management System (LMS);Check canvas every 48 hours
What is a class?
The type of an object; It's definition is enclosed in braces { }.
What is UML? Class, object, relationships (contains, cardinality, inherit, interface), interactions
Unified Modeling Language
What are class variables?
Variables that belong to a class;Not oustide of a class (public scope)(static)
What are instance variables?
Where the state of an object is stored;located outside of any method in the model class(private scope)
