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Introduction xvii
Chapter 1 Introducing the Basics of Java 1
Understanding Java Class Structure 1
Distinguishing between Classes and Objects 5
Understanding Other Elements of Java Class Structure 6
Writing a main() Method 7
Importing Other Java Classes 10
Understanding Package Declarations 13
Understanding Variable Scope in Java Code 14
Understanding Program State 15
The Essentials and Beyond 16
Chapter 2 Applying Data Types in Java Programming 19
Creating, Using, and Destroying Objects 19
Distinguishing between Object References and Primitives 23
Declaring and Initializing Variables 26
Default Initialization of Variables 30
Reading and Writing Object Fields 32
Using the StringBuilder Class and Its Methods 34
Creating and Manipulating Strings 39
The Essentials and Beyond 42
Chapter 3 Using Java Operators and Conditional Logic 45
Using Java Operators 45
Understanding Operator Types and Properties 48
Precedence and Associativity 50
Using Separators 52
Using Postfix/Prefix Operators 52
Using Unary Operators 53
Using Multiplicative and Additive Operators 55
Using Shift Operators 56
Using Relational Operators 56
Using Equality Operators 57
Using Bitwise and Logical Operators 58
Using Conditional Operators 59
Using Assignment Operators 61
Using Parentheses to Control Operators 62
Understanding Object Equality 64
Using if and if/else Statements 67
Using a switch Statement 69
The Essentials and Beyond 71
Chapter 4 Using Java Arrays 75
Understanding Java Arrays 75
Using a One-Dimensional Array 78
Declaring an Array 78
Instantiating an Array 79
Populating an Array with a Loop 80
Populating an Array without a Loop 81
Using an Array 82
Using a String Object as a Character Array 84
Using System.arraycopy() 85
Using Arrays of Other Types 86
Understanding the Arrays Class 87
Using a Multi-Dimensional Array 87
Declaring a Multi-Dimensional Array 88
Instantiating and Using a Multi-Dimensional Array 88
Using an ArrayList Object 90
Understanding ArrayList Support for Array Features 90
Instantiating an ArrayList Class 92
Consuming the ArrayList API 93
The Essentials and Beyond 94
Chapter 5 Using Loops in Java Code 97
Applying while Loops 97
Choosing a Useful while Test 98
Watching Out for Infinite Loops 100
Applying do/while Loops 102
Applying for and For-Each Loops 103
Using for Loops 104
Nesting Loops 106
Avoiding Useless and Infinite Loops 108
Using For-Each Loops 109
Using the For-Each Loop with a Collections Type 110
Comparing Loop Constructs 112
Using continue and break Statements 112
Using the continue Statement 113
Using the break Statement 114
Using Labeled Statements 115
The Essentials and Beyond 116
Chapter 6 Encapsulating Data and Exposing Methods in Java 119
Encapsulating Data 119
Understanding Data Hiding 120
Hiding the Data 124
Understanding Encapsulation 125
Understanding Mutability 127
Using Final Classes 128
Exposing Data through Methods 129
Understanding the Bean Model 129
Distinguishing Methods from Data in a Class 131
Validating Incoming Parameters 131
Restricting Range 132
Inducing Side Effects 133
Choosing Methods to Make Public 134
Applying Access Modifiers 135
Working with Packaged Classes 137
Using Access Modifiers with Package‑Aware Classes 139
Using Default Access with Class Members 140
Understanding the protected Access Modifier 142
Abstracting Data 143
The Essentials and Beyond 144
Chapter 7 Using Java Methods to Communicate 147
Designing Methods 147
Understanding Method Modifiers 148
Choosing Modifiers 149
Choosing Return Types 151
Choosing Parameters 154
Naming Methods 156
Overloading Methods 158
Understanding Method Signatures 159
Supporting Multiple Parameter Lists 160
Allowing for a Variable Number of Parameters 161
Chaining Overloaded Methods 163
Declaring Methods and Fields static 164
Passing Data among Methods 167
Understanding Primitive Parameters 167
Understanding Reference Parameters 168
Returning Object References 169
Understanding Pass-by-Value 170
The Essentials and Beyond 170
Chapter 8 Using Java Constructors 173
Using the Default Constructor 173
Defining Alternate Constructors 176
Hiding (Replacing) the Default Constructor 177
Limiting Constructor Access 178
Using Packages to Encapsulate Constructors 180
Writing a Proxy Construction Class 185
Requiring Parameters 188
Adding Parameters to Constructors 188
Overriding Default Initialization 188
Disallowing Default Construction 189
Using Other Objects for Initialization 191
Overloading Constructors 192
Chaining Overloaded Constructors 193
Coupling Objects with Constructors 196
Creating a Singleton Object 198
The Essentials and Beyond 199
Chapter 9 Inheriting Code and Data in Java 203
Extending a Class 203
Understanding What Inheritance Provides 204
Extending the Parent Class 206
Removing the final Keyword 206
Observing the Equality Contract 207
Observing Java's Single Inheritance Rule 208
Understanding How Inheritance Works 209
Using the super Keyword 212
Passing Parameters to a Parent Constructor 212
Choosing a Parent Constructor 213
Overriding a Method 214
Using the @Override Annotation 216
Modifying or Replacing an Inherited Method 217
Prohibiting Method Overrides 219
Casting Objects 220
Implementing Polymorphic Behavior 223
Organizing Objects by Type 223
Using Method Names to Effect Polymorphism 224
The Essentials and Beyond 227
Chapter 10 Understanding Java Interfaces and Abstract Classes 231
Understanding Abstract Types 231
Using Abstract Classes 235
Understanding the Template Method Pattern 239
Applying the Template Method Pattern 240
Enforcing a Pattern 241
Using Interfaces 242
Planning for Variation 247
Reviewing Polymorphism 248
Using the enum Type 249
Distinguishing between Abstract and Concrete References 254
The Essentials and Beyond 255
Chapter 11 Throwing and Catching Exceptions in Java 259
Understanding the Role Exceptions Play 259
Understanding Exceptions 260
Handling Exceptions 263
Using a try-catch Block 264
Catching an Exception 265
Throwing an Exception 266
Using Multiple Catch Blocks 267
Using a finally Block 269
Handling Unchecked Exceptions 274
Understanding Exception Types 276
Understanding Errors 276
Understanding Unchecked Exceptions 277
Understanding Checked Exceptions 279
Calling Methods That Throw Exceptions 282
Catching a Checked Exception 282
Declaring a Checked Exception 284
Recognizing Common Exception Types 285
The Essentials and Beyond 286
Appendix A Answers to Review Questions 289
Appendix B OCA Certif ication Program 301
Certification-Objectives Map 302
Index 305
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Add Java SE 7 Programming Essentials, Learn core programming concepts and technologies on the leading software development language This full-color book covers fundamental Java programming concepts and skills for those new to software development and programming. Taking a straightforwar, Java SE 7 Programming Essentials to the inventory that you are selling on WonderClubX
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Add Java SE 7 Programming Essentials, Learn core programming concepts and technologies on the leading software development language This full-color book covers fundamental Java programming concepts and skills for those new to software development and programming. Taking a straightforwar, Java SE 7 Programming Essentials to your collection on WonderClub |