Java 5: Objects First

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ISBN: 9780763737207 | 0763737208
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Copyright: 2/15/2006

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True to its name, Java 5: Objects First presents object-oriented concepts right from the start. The text places significant emphasis on patterns, their associated solutions, and how to recognize and modify them. Its conversational, user-friendly style and numerous programming exercises aid students in their comprehension and retention of the material presented. Additional resources, including instructor's PowerPoint Lecture Slides, solutions to all exercises, and Student Lecture Companion, are also available.

Introduction

(30)

A Single Computer

(2)

Networks

(1)

The World Wide Web

(1)

Software

(1)

Levels of Programming

(3)

a ← b + c in a High-Level Language

(1)

a ← b + c in Assembly Language

(1)

a ← b + c in Machine Language

(2)

The Edit-Compile-Run Loop

(3)

Levels of Users and Programmers

(1)

The Software Life Cycle

(2)

Change Is Inevitable: Maintenance Is the Costliest Activity

(1)

Programming Paradigms

(1)

The First Paradigm: Spaghetti Code (1945--1975)

(1)

The Second Paradigm: Structured Programming (1970--1995)

(2)

The Third Paradigm: Object-Oriented Programming (1995--present)

(1)

Human Reactions to Paradigm Change

(8)

Chapter Summary

(1)

Terminology Introduced in This Chapter

(1)

Exercises

(5)

Classes and Objects

(14)

Modeling a Bank

(3)

Person and Employee

(2)

Features of the OO Paradigm

(1)

Modeling a Section of Students

(2)

Modeling Complex Numbers

(1)

Conventions

(1)

The Road Ahead

(3)

Chapter Summary

(1)

Terminology Introduced in This Chapter

(1)

Exercises

(2)

Using Predefined Classes and Objects

(36)

What Java Provides

(1)

Class Print Stream and Instance System.out

(1)

Using Java

(1)

A First Java Program

(2)

Action Statements

(1)

Boilerplate

(2)

Comments

(1)

White Space

(1)

File Names and Class Names

(2)

Using a Template File---Blank.java

(2)

Methods for Class PrintStream

(1)

Overloading

(1)

There's More Than One Way to Solve a Problem

(1)

GUI: Java's Graphics Libraries

(1)

GUI: Coordinates and Colors

(2)

GUI: Opening a JFrame

(2)

GUI: Drawing Geometrical Shapes

(4)

GUI: Displaying a JPEG Image

(3)

GUI: Diagonals

(9)

Chapter Summary

(1)

Terminology Introduced in This Chapter

(1)

Exercises

(7)

Using Class String

(32)

Declarations

(1)

String Literals

(1)

Assignment Statements

(3)

Objects and References

(2)

Java Is a Strongly Typed Language

(1)

The Empty String

(2)

The Uninitialized String Variable and null

(1)

Signatures, Prototypes, and Return Types

(1)

Methods with a Non-void Return Type

(1)

Methods with a void Return Type

(1)

Overloading Depends on the Signature, Not the Prototype

(1)

Class String---Methods That Return Strings

(2)

Cascading and Composition of Methods

(2)

Constructors and new

101

(2)

A Shortcut for String Concatenation

103

(1)

Right-Hand Side of an Assignment, Revisited

103

(1)

Other Methods of the Class String

103

(1)

GUI: JLabels and JTextFields

104

(9)

Chapter Summary

108

(1)

Terminology Introduced in This Chapter

109

(1)

Exercises

109

(4)

Output and Input

113

(22)

Characteristics of Disk Files

114

(1)

Methods of Class File

115

(4)

Writing to the Monitor

119

(1)

Writing to a Disk File

119

(3)

Reading from a Disk File

122

(2)

Reading Past the End of a File

124

(1)

Reading from the Keyboard

124

(2)

Patterns and Reuse

126

(2)

Practice!

128

(7)

Chapter Summary

129

(1)

Terminology Introduced in This Chapter

129

(1)

Exercises

130

(5)

Defining New Classes

135

(76)

Our First Class Definition

136

(4)

Overloading a Method

140

(2)

Introducing Instance Variables

142

(9)

Schemes for Naming Constructor Parameters

151

(2)

Getters and Setters

153

(5)

Problems with Sharing Data Structure

158

(6)

Last Words on Setters and Getters

164

(1)

What If a Parameter Is a User-Defined Object?

165

(4)

What If the Return Type Is a User-Defined Object?

169

(5)

Schemes for Returning Objects from Methods

174

(1)

The toString Method

175

(6)

Reading Objects Using static read Methods

181

(7)

Aspects of static

188

(1)

Designing and Implementing Classes

189

(4)

Default Constructors and main Methods

193

(3)

Command-Line Arguments

196

(15)

Chapter Summary

199

(1)

Terminology Introduced in This Chapter

200

(1)

Exercises

200

(11)

Integer Datatypes

211

(98)

Integers and Integer Types

212

(2)

Read an int and Print Its Square

214

(3)

String Methods Involving Integers

217

(6)

Arithmetic Operators for Integers

223

(2)

Precedence and Parentheses

225

(3)

Shortcuts for Arithmetic Expressions and Statements

228

(1)

How Primitive Datatypes Differ from Objects

229

(1)

EggShipment: Gross, Dozen, Single

230

(5)

Arithmetic with EggShipments

235

(5)

Complex Numbers: Mathematical Preliminaries

240

(1)

Reading and Printing Complex Numbers

241

(3)

Arithmetic Operations on Complex Numbers

244

(7)

Class Rectangle

251

(4)

Counting Rectangles---static Again!

255

(5)

Generating Sequential ID Numbers

260

(3)

Fractions

263

(1)

Converting Strings to ints

264

(3)

Converting ints to Strings

267

(3)

Pretty-Printing Integer Values

270

(4)

Casting

274

(1)

Integer Wraparound

275

(2)

How Scanner Works

277

(5)

GUI: Accept an int and Print Its Square

282

(2)

GUI: Adding Buttons to a JFrame

284

(2)

GUI: Add ActionListeners to the Buttons

286

(2)

GUI: Counting Button Clicks

288

(21)

Chapter Summary

289

(2)

Terminology Introduced in This Chapter

291

(1)

Exercises

291

(18)

Boolean Variables

309

(22)

Literals

310

(1)

Relational Operators and Numeric Types

311

(2)

Logical Operators

313

(1)

Precedence

314

(1)

Equality and Objects

315

(3)

Predicates---Predefined and User-Defined

318

(3)

Odd and Even

321

(2)

static Predicates

323

(1)

DeMorgan's Laws

323

(1)

Experiments to Test the Behavior of Logical Operators

324

(7)

Chapter Summary

326

(1)

Terminology Introduced in This Chapter

326

(1)

Exercises

327

(4)

char

331

(12)

Literals of Type char

331

(1)

chars Sizes in Bits

332

(1)

String Methods Involving chars

332

(3)

Strings and chars

335

(1)

Comparing chars with Relational Operators

335

(1)

Is a char a Digit?

336

(2)

Arithmetic with chars

338

(1)

Converting Between chars and ints

339

(4)

Chapter Summary

339

(1)

Terminology Introduced in This Chapter

340

(1)

Exercises

340

(3)

Floating-Point Datatypes

343

(34)

Java's Floating-Point Datatypes

344

(1)

Floating-Point Literals

345

(1)

Read a double and Print Its Square

346

(1)

Pretty-Printing Floating-Point Numbers

347

(2)

Arithmetic with Floating-Point Numbers

349

(1)

Mixed-Mode Arithmetic

350

(1)

Precedence and Parentheses

350

(1)

Shortcuts

351

(1)

Methods from Class Math

351

(1)

Floating-Point Constants

352

(1)

Converting Between Integers and Floating-Point

353

(1)

Testing for Equality of Floating-Point Numbers

354

(2)

Class Circle

356

(3)

Unnecessary Instance Variables

359

(2)

grow, shrink, report

361

(3)

Comparing Circles

364

(2)

A static Variable---taxRate

366

(3)

Converting Strings to doubles

369

(2)

Converting doubles to Strings

371

(1)

MIN_VALUE and MAX_VALUE

371

(6)

Chapter Summary

373

(1)

Terminology Introduced in This Chapter

374

(1)

Exercises

374

(3)

Conditional Execution

377

(72)

Things to Validate

378

(1)

Our First if

379

(4)

The if Statement

383

(2)

Validating the radius of a Circle

385

(5)

Properties of ints

390

(2)

Classifying Temperature: Using if

392

(5)

Improving the static read Method

397

(7)

Changing a char from Lowercase to Uppercase

404

(1)

Computing Pay with Overtime

405

(4)

The if-else Statement

409

(3)

Classifying Temperature: Using if-else

412

(2)

Multiway Branching: The Letter Grade Problem

414

(2)

Properties of a char

416

(4)

Nested ifs and Dangling elses

420

(3)

Stylistic Considerations

423

(3)

An Improved to String for Class Complex

426

(4)

The switch Statement

430

(2)

GUI: Check Boxes and Three-Bit Integers

432

(2)

GUI: Radio Buttons

434

(15)

Chapter Summary

436

(1)

Terminology Introduced in This Chapter

437

(1)

Exercises

437

(12)

Testing, Coding, and Debugging

449

(36)

Why We Test

449

(1)

Select Test Cases Before You Write the Code

450

(1)

Selecting Good Test Cases

451

(2)

Regression Testing

453

(1)

Testing Alternatives

453

(3)

Type in Test Cases: Visually Check the Outputs

456

(1)

Driver Contains Inputs: Visually Check the Outputs

457

(2)

Driver Contains I/O: Visually Check

459

(2)

Driver Contains I/O: Automatically Check

461

(2)

Reporting Options

463

(1)

static Automatic Test Method

463

(4)

Testing the times Method of Class Complex

467

(2)

Coding Tips

469

(3)

Debugging

472

(3)

Seeking Help: How to Document Errors

475

(1)

Learning Novel Language Constructs

476

(1)

Keep the Interface but Improve the Implementation

477

(1)

Style Sheets

477

(8)

Chapter Summary

478

(1)

Terminology Introduced in This Chapter

479

(1)

Exercises

479

(6)

Loops and Files

485

(108)

Collections and Their Characteristics

486

(2)

A Selection of Collections

488

(1)

An Initial Set of Programming Patterns

489

(2)

Files as Collections

491

(1)

The while Loop

492

(1)

The Read-Process Loop

493

(2)

Print the Complex Numbers in a File

495

(3)

Patterns for Counting

498

(3)

Patterns for Accumulating

501

(8)

Computing the Average

509

(3)

More About nextInt and nextLine

512

(1)

Section---Implemented as a File of Students

513

(4)

howMany

517

(4)

any and all

521

(10)

Finding Extremes

531

(5)

Is a Sequence in Order?

536

(3)

Pattern: New File(s)

539

(1)

Pattern: Two Files In

540

(6)

Some Miscellaneous Problems

546

(4)

Generating Integer Sequences with while

550

(3)

Signaling End-of-File with a Sentinel

553

(2)

More about while

555

(1)

The for Loop

556

(5)

End-of-File

561

(3)

Reading the Same File Twice

564

(3)

GUI: JOptionPane and Dialog Boxes

567

(1)

GUI: Graphics and Loops

568

(25)

Chapter Summary

568

(1)

Terminology Introduced in This Chapter

569

(1)

Exercises

570

(23)

Arrays

593

(126)

Arrays as Collections

594

(1)

An Array of Three ints

594

(3)

An Array of 10 ints

597

(2)

Given a File of ints, Read Them into an Array

599

(5)

Passing Arrays and Array Elements

604

(7)

Class MyString---Array of char

611

(2)

Primitive Methods for MyString

613

(3)

A Taxonomy of MyString Methods

616

(1)

equals

617

(3)

Concatenating Arrays

620

(2)

Index, Contains, How Many

622

(6)

MyString in, MyString out---Same Length

628

(7)

Add a char at the Front or Rear

635

(2)

Deleting chars

637

(8)

substring

645

(2)

trim

647

(3)

isPrefixOf

650

(1)

Section---Implemented as an Array of Student

651

(5)

More Constructors and printInReverse

656

(3)

Adding Students to a Section

659

(2)

Finding Extrema in Section

661

(4)

Sharing and Copying

665

(9)

Keep and Delete

674

(1)

Order!

674

(8)

String [ ] args

682

(1)

Array Indexing in Other Languages

683

(1)

Multidimensional Arrays

684

(1)

2-D Array Basics

684

(2)

2-D Arrays of Numbers

686

(1)

2-D Arrays of char

687

(2)

2-D Arrays of boolean

689

(1)

Computing Array Addresses

690

(1)

Ragged Arrays

690

(2)

GUI: Regular Polygons

692

(1)

GUI: Checkerboard

693

(26)

Chapter Summary

695

(2)

Terminology Introduced in This Chapter

697

(1)

Exercises

697

(22)

Interfaces and Polymorphism

719

(46)

The Two Meanings of ``Interface''

719

(1)

Musical Instruments and the CanPlayNotes Interface

720

(1)

The Comparable Interface

720

(6)

Sorting Arrays of Comparable Objects

726

(4)

Comparing Objects on More Than One Attribute

730

(1)

Sorting Arrays of Primitive Datatypes

730

(1)

Defining Our Own Interface---Talker

731

(2)

Variables of Type Talker

733

(1)

Arrays of Type Talker

734

(1)

Polymorphism

735

(4)

Before Polymorphism (The Olden Days)

739

(1)

Multiple Interfaces---Scanner and Printer

740

(3)

Passing Methods Using Interfaces

743

(4)

Bar Graphs

747

(3)

GUI: The MouseListener Interface

750

(3)

GUI: The MouseMotionListener Interface

753

(2)

GUI: The KeyListener Interface

755

(10)

Chapter Summary

757

(1)

Terminology Introduced in This Chapter

758

(1)

Exercises

758

(7)

Inheritance and Class Hierarchies

765

(52)

Has-a and Is-a Relationships

766

(2)

extends

768

(1)

Inheritance Promotes Software Reuse

768

(4)

Inheriting Data from a Parent Class

772

(3)

Adding Data in a Subclass

775

(3)

Encapsulating Data and Using Overridden Methods

778

(2)

Overriding an Instance Variable

780

(2)

Object Is at the Top of All Hierarchies

782

(1)

Polymorphism Using Inheritance

782

(2)

Miscellaneous Topics

784

(3)

Implementing BetterPS as a Composition

787

(1)

A Hierarchy of Animals

788

(3)

Using abstract Classes

791

(3)

Case Study: Persons in an Organization

794

(5)

Creating a Class Hierarchy

799

(3)

From UML to Java Code

802

(2)

Observations on Class Hierarchies

804

(1)

GUI: FlowLayout

804

(2)

GUI: BorderLayout

806

(11)

Chapter Summary

808

(1)

Terminology Introduced in This Chapter

809

(1)

Exercises

810

(7)

Exceptions

817

(30)

Exceptions We've Already Encountered

818

(1)

Anatomy of an Exception

818

(2)

Divide by Zero with a Deeper Stack

820

(2)

Exceptions Are Objects

822

(1)

try and catch

823

(4)

A Fail-Safe Reader of Integers

827

(3)

Multiple catch Blocks

830

(2)

finally

832

(1)

Where Can an Exception Be Handled?

833

(3)

Defining Our Own Exceptions

836

(6)

Checked versus Unchecked Exceptions

842

(5)

Chapter Summary

844

(1)

Terminology Introduced in This Chapter

845

(1)

Exercises

845

(2)

Recursion

847

(32)

You've Seen Recursion Before

847

(1)

Recursive Definitions and Closed Forms

848

(1)

Animating Recursive Factorial

849

(1)

Infinite Recursion and Stack Frames

850

(4)

Evaluating a Recursive Call with Hand-Tracing

854

(2)

Making Java Trace for Us

856

(3)

Recursive Primitives for MyString

859

(4)

Recursive Versions of MyString Methods

863

(3)

Finding Square Roots with Recursive Bisection

866

(3)

Ackermann's Function Grows Very Quickly

869

(1)

The Fibonacci Method Can Exhaust Our Patience

870

(1)

Recursion: Past, Present, Future

870

(9)

Chapter Summary

872

(1)

Terminology Introduced in This Chapter

873

(1)

Exercises

873

(6)

Numerical and Other Algorithms

879

(36)

Linear Search

879

(2)

Binary Search

881

(3)

Sorting

884

(1)

Aside, Swapping

885

(1)

Selection Sort

886

(4)

Some Predicates with Integers

890

(1)

Converting Integers to Strings

890

(4)

Parsing Numbers

894

(2)

Problems in Number Theory

896

(1)

Easy String Problems

897

(1)

Substring and Matching

897

(2)

Ciphers

899

(1)

GUI: Introducing Timer

899

(2)

GUI: An Oscillator

901

(14)

Chapter Summary

903

(1)

Terminology Introduced in This Chapter

903

(1)

Exercises

904

(11)

Appendix 1 Style Sheet

915

(4)

Appendix 2 Reserved Words

919

(2)

Appendix 3 Printable Characters

921

(2)

Appendix 4 Operator Precedence

923

(2)

Appendix 5 Increment and Decrement Operators

925

(4)

Appendix 6 Conditional Operator---?:

929

(2)

Appendix 7 Enhanced for Loop

931

(2)

Appendix 8 vararg---Variable Length Argument Lists

933

(2)

Appendix 9 Enumerated Types---enum

935

(4)

Appendix 10 ArrayList

939

(8)

Appendix 11 Wrappers, Boxing, Unboxing

947

(2)

Appendix 12 javadoc

949

(8)

Index

957

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Java 5: Objects First

Summary

Table of Contents

Supplemental Materials