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1. Introduction
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1
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Java Environment
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2
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Types of Java Programs
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3
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Java Program Development Process
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4
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Command Line Commands
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6
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Java Virtual Machine
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7
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Java Tools
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8
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Basic Code Structures
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8
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Statements and Code Blocks
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8
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Variables
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9
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Basic Types and Operations
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10
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Basic Types
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10
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Assignment
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11
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Conversions Between Basic Types
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12
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Numeric Operators
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12
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Relational Operators
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14
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Boolean Operators
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15
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Operator Precedence
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15
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Basic Operations Example Program
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16
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Control Structures
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17
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if Structure
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17
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Loop Structure
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18
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Break Statement
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19
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Switch Structure
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20
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Control Structures Example Program
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20
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2. Classes and Objects
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22
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Software Development Methodologies
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22
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Functional Decomposition Summary
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22
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Object Orientation Summary
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23
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Advantages of OO
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24
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OO Methodology Technique
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27
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Class and Object Principles
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27
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Classes as Java Code
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27
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Classes as Models
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27
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Classes as Object Factories
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28
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Object Behavior, Identity, and State
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29
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Object
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30
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Object Fields
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32
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Messages
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33
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Methods
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35
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Sending a Message versus Calling a Method
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36
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Defining a Class
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37
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Basic Structure
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37
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main Message
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39
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Encapsulation
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41
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Accessor and Mutator Messages
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42
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More Class and Object Principles
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42
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Passing Message Parameters
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42
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The this Object
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45
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Using Multiple Constructors
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45
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The Object Class
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47
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final Object References
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47
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Disposing of Objects
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48
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Classes as Objects
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48
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Class Objects and Instance Objects
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48
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Using Class Objects
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51
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Initialization Block
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52
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The Class
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52
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Working with Classes
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53
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Using Multiple Classes
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53
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Making Objects Communicate
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55
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Copying and Pasting
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57
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3. Commonly Used Classes
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59
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String Class
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59
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String API
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60
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System.out.println
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62
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Wrapper Classes for Basic Types
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63
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Array
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65
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Array Construction
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65
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Array Operations
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66
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Program Startup Parameters
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69
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ArrayList Class
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69
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4. Inheritance
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72
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Inheritance Principles
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72
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Inheritance and OO Models
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72
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The "is a" Rule
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74
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What is a Child Class?
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75
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Single and Multiple Inheritance
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75
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Subclass and Superclass
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76
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Java Inheritance Basics
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76
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Extending a Class
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76
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Access to Parent Class Properties
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78
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Instance of Operator
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78
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Parent and Child Constructors
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79
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Getting the Parent Class
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80
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Polymorphism
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80
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Assignment Polymorphism
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81
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Overloading
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83
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Overriding
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84
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Dynamic Binding and Object Reference Casts
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86
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Dynamic Binding
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86
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Object Reference Casts
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87
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Abstract Classes and Messages
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89
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Abstract Class Concept
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90
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Java Abstract Classes
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90
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Abstract Messages
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92
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The Object Class
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93
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Object Equality
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94
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Definition of equals
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94
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Implementation
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95
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Overloaded equals message
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97
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Preventing Inheritance
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98
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5. Interfaces
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99
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Interface Basics
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99
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Syntax
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99
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What an Interface Should Be
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100
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Implementing Interfaces
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101
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Comparison with Class Inheritance
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102
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Interface Inheritance
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103
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Object References
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104
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Tagging Interfaces
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105
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Cloneable Interface
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105
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Interface Uses
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108
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Collections
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108
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Event Callbacks
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109
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6. Packages and Nested Classes
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113
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Packages
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113
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What a Package Is
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113
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Defining a Package
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113
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Importing a Package
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114
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Package Access Modifier
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115
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Packages Within Packages
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117
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Classpath
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118
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Dynamic Class Loading
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118
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JVM and Compiler Classpath Use
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119
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Changing the classpath with the Current Directory
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121
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Setting the classpath Variable
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121
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classpath Option
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122
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Compiler and JVM Example
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122
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Java Archives
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124
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Nested Classes
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124
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static Nested Classes
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125
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Inner Class Basics
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127
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Inner Class Use
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130
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Anonymous Inner Classes
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133
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7. Windows and GUI Events
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137
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Window Basics
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138
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Swing Program Basic Procedure
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138
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Adapter Classes
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142
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JFrame Inheritance
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143
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JFrame Description
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147
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JFrame Sizing and Positioning
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147
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GUI Event Handling
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149
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AWT Event Classes
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149
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Handling Keyboard Events
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151
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Handling Mouse Events
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154
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Handling Action Events
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158
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Handling Multiple Events
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161
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8. Swing Components
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165
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Swing Component Basics
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165
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Swing Components Summary
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165
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Swing Components Hierarchy
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166
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GUI Design with Swing Components
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168
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Common Top-Level Containers
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169
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Elementary Swing Components
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169
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Colors
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172
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Layout Managers
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173
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GridLayout
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174
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FlowLayout
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176
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BorderLay
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179
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BoxLayout
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183
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CardLayout
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183
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GridBagLayout and SpringLayout
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186
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Dynamic Layout Updates
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186
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Common Swing Components
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189
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JTextField
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190
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JList
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190
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JScrollPane
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192
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JComboBox
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196
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Menus
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200
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Effect of Subclassing on Design
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207
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JDialog
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210
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JFileChoose
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216
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9. Graphics
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222
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Drawing Procedure and Graphics Context
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222
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Drawing 2D Geometrical Shapes
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224
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Shape In
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224
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Graphics Shape Classes
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225
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Drawing Text with Fonts
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233
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Procedure
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233
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Font Terminology and Font Class
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234
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Positioning and Drawing Text
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236
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Fonts with Components
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239
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Displaying Images
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242
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Drawing without paintComponent
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245
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10. Exceptions
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247
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Why Exceptions
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247
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Error Handling without Exceptions
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247
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Error Handling with Exceptions
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248
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Exception Basics
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249
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Exception Classes
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249
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Exception Handling Syntax
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251
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Exception Propagation
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252
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When to Propagate
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256
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Checked Exceptions and the Compiler
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257
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Other Exception Features
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257
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Throwing and Rethrowing Exceptions
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257
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Custom Exception Classes
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258
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11. Files
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259
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Pathnames
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259
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Abstract Pathname
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260
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Canonical Pathname
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260
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Pathname
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261
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Absolute and Relative Pathnames
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261
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The File Class
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262
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File.separator
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265
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Filename Filter
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266
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File Management Summary
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268
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12. Input and Output
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269
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Streams
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269
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Types of Stream I/O
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270
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Stream I/O Basic Procedure
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270
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Top-Level Stream Classes
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272
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Stream Class Hierarchy
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274
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InputStream
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274
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OutputStream
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275
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Readers
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276
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Writers
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277
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Filtered Streams
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278
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Filter Stream
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278
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Structuring Filtered Streams
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279
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Example I/O Programs
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280
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Integer I/O Program
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280
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Character Encoding Program
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281
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Predefined Streams
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282
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More on Text I/O
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282
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Reading Text Lines
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282
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Delimited Text I/O
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283
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Object Streams
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285
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Serializable Interface
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285
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Specifying the Serial Version
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289
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Custom Serialization
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290
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Externalizable Interface
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292
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Appendix A. Abbreviations
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295
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Appendix B. OO Summary
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296
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Appendix C. Java Summary
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298
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Appendix D. Exercise Answers
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301
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