CS 102 Exam 2 Review Topics

Chapter 5 - Java Language Basics
• Introduction & Objectives - READ THEM
• Primitive Types
• Eight Java primitive types (names and sizes)
• Legal constant values of each primitive types
• Identifiers, Keywords, and Variables
• Syntax of legal identifiers
• Java keywords (don't memorize all of them - know those you use)
• Difference between instance and local variables
• The idea of scope of an identifier
• The rules for resolving scope
• The concepts of static and final variables
• The concept of packages (see also use in ATM lablet of chapter 7)
• The four access modifiers (see table at bottom of page 177)
• Operators and Expressions
• The concepts of precedence and associativity
• The concept of type promotion (see page 180)
• The concept of type casts
• The Math class and its common methods and constants
• Bitwise operators only as apply to key masks
• Comparison operators
• Logical operators (especially the non-bitwise ones)
• Lightly over complicated boolean expressions
• Distributive and DeMorgan's laws only for extra
• Assignments and Statements
• Assignment operators
• Difference between class and primitive variables (especially understand class variables)
• Know assignment and equality differences between class and primitive variables
• Instanceof operator (conditional operator extra)
• Types of Java statements
• See operator precedence table on page 211 (don't memorize it)
• Hands On - Sodapop.java - LOOK IT OVER
• Summary - READ IT
• Class References - SCAN AT MOST - you should have already read them
• Lab Exercises & Postlab Exercise - SCAN THEM - you should have already done them

Chapter 6 - Events and Actions
• Introduction & Objectives - READ THEM
• More Java Programming
• The if decision statement (all forms)
• The switch decision statement (see restrictions on expression on page 231)
• Use of the break statement
• Concept of an abstract class
• Concept of an interface
• Event-Driven Programming
• Concept of the delegation model
• Features of the delegation model (see page 238)
• Basics of event handling (see page 241)
• This section is very important!!!
• The AWEEvent Hierarchy
• Know event hierarchy (see page 242)
• Understand action, adjustment, input, item, key, mouse, and text events
• Listeners
• Understand the concept of a listener interface
• Know the eleven listener interfaces
• Understand the concept of an adapter class
• Know the seven adapter classes
• Know methods of listener interfaces that we have used
• Hands On - GalaEvents.java - LOOK IT OVER
• Hands On - SketchPad.java - LOOK IT OVER
• Summary - READ IT
• Class References - SCAN AT MOST - you should have already read them
• Lab Exercises & Postlab Exercise - SCAN THEM - you should have already done them

Chapter 7 - Methodical Programming
• Introduction & Objectives - READ THEM
• Method Recap
• Concept of method signatures
• How methods can be called
• Difference between actual and formal arguments
• Correspondence between actual and formal arguments
• Initialization of formal from actual arguments
• Difference between value and reference arguments
• Step 1: Specification
• The importance of the specification
• Suggestion of what to design first, what to do next
• Step 2: Determine the Classes
• Suggestion of what should suggest classes
• Suggestion of how to do GUI design
• Suggestion about length of designing and coding
• Suggestion about size of methods
• Concept of stubs
• Use of stubs
• Step 3: Determine the Methods
• Concept of top-level decomposition
• Use of stubs
• Suggestion on how to build and test a program
• Suggestion on self-documenting code
• Step 3, Continued
• Concept of an addXXXListener to panel class
• When a new class is appropriate
• Suggestion about generality
• Benefits of using documentation
• Suggestion on how to determine the variables
• Suggestion about duplication
• Concept of cleanup and rewriting
• The ATM Applet
• Understand the ATM applet
• The Keypad class
• The NumField class
• The actionPerformed method organization
• Hands On - Calculator.java - LOOK IT OVER
• Summary - READ IT
• Class References - SCAN AT MOST - you should have already read them
• Lab Exercises & Postlab Exercise - SCAN THEM - you should have already done them

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