Programming and Problem Solving with Java

755

Dijkstra, Edsger, 374
Diode vacuum tube, 40
Direct execution of code, 14
Directories
classes in same, 132
multifile packages stored in, 315
Discrete values, continuous values versus,
481
Disk drives, 21
Disks, 212
Display screens, 65
for editor, 76
disposemethod, 411, 421
Divide and conquer step, 27 , 34, 178
in party planning/preparation case
study, 30
in problem-solving, 26
Division, by zero, 140, 169
Division operator (/), 141
Divisors, 110, 169, 170
do, 431
Documentation, 9, 299, 316
Dollar sign ($), 43, 45, 47
do loops, 467, 468
nesting, 446
testing, 466
do statement, 442, 444–445, 448
Dot.com business model, 659
Dot matrix printers, early, 479
Dot notation, and accessing fields of class,
488
Dot operator, 511
doTowersmethod, 646, 647
Dot product, 606
Dots
between braces, 296
in compound statements, 224
in file names, 215
in identifier definition, 45
and string comparison, 158
Doubleclass, 273, 612
Doubleobject, 274
Double.parseDoublemethod, 420
Double quotes
within literal strings, 86
String literals beginning/ending with, 86
strings enclosed in, 53, 56

doubletype, 99, 105, 130, 141, 242, 480, 621

and declarations, 106

and numeric data types, 602

and significant digits, 597

doublevalues, 105, 273

Doubly nested loops, 242, 454

do-while statement, 444

Driver application classes, 314

Drivers, 32, 84

for GradeExamsapplication, 508

purpose of, 314

DrPhone.out, results of, 352

Duplicate keys, lists with, 524, 525

DVD-ROM drive, 22

Dynamic binding, 561

E

Earth Simulator, 659

Ebay, 658

EBCDIC, 480

Eccles, Will, 41

Echo printing, 70

Eckert, J. Presper, 152, 431

Eckert-Mauchly Computer Corporation,

443

E-commerce sites, 658

Edison, Thomas, 40

Editor, 22, 34, 75, 212, 213, 214

display screen for, 76

EDVAC (Electronic Discrete Variable

Automatic Computer

Efficiency), 152, 210

and internal representation, 291

and readability, 174

Eiffel, 271

Electric typewriter, introduction of, 98

Electronic-digital computer, early model

of, 99

Electronic trigger circuit, 41

“Eliza,” 324

Ellipses (...)

between braces indicating code for

class, 132

in code for frameExampleclass, 380,

381

else clause, 196, 652

elsereserved word, 168