780
UNIVAC I, 443
UNIVAC (Universal Automatic Computer),
153, 210
Universal set, 164
Unix, 72, 375
Unordered lists, sequential searching in,
671
Unsorted lists, 524, 534
searching, 550, 552
sequential searching in, 571
Unstructured data type, 482
Update, and for statement, 446, 447
Uppercase letters, 59
in ASCII subset of Unicode character
set, 157
in Java, 48
and string comparison, 159
Upward compatibility, 113
URL.SeeUniform Record Locator
U.S. Army Ordnance Corps, 152
U.S. Department of Defense, Arpanet com-
missioned by, 374
U.S. National Medal of Technology, 375
U.S. Navy, 443
UseFileclass, 219–220
User classes, 78
User/computer interface, 23 ,34
User-defined packages, bundling related
classes into, 138
User interface, 269
User names, 75V
Valid assignment statements, 60–61
Valid identifiers, 47
valueOfmethod, 216, 499
Value-returning class methods, 122–124,
141
Value-returning instance methods, 158
Value-returning math methods, 99
Value-returning methods, 70, 71, 81–82,
140, 243
in name displayed in multiple formats
case study, 83, 84
observers as, 292
and two-dimensional arrays, 590
Valuesangle array with, 489
in assignment statement, 448
in atomic data types, 482
comparing those of different types, 196
in composite data types, 482
storing in arrays, 512
and syntax errors, 440
two-dimensional arrays with list of, 590
Van Tassel, James, 325
Variable declarations, 107–108
comments added to, 58
syntax template for, 55
Variable identifier, 55
Variables, 54–56, 70, 88, 108
boolean, 156
classes, objects, and, 272
declaring of type boolean, 155
index as, 490
loop control, 223, 224
Variable value, 55
VAX 11/780, 479
Vectorclass, 592
Vector object, 581
Verify, in problem-solving phase, 6
Video, 668
Video display, 21
Video games, early, 324
Virtual machine, 15
Viruses, 303, 634
VisiCalc, 479, 523
Visual Basic, 11
Visual Basic.NET, 271
VMS operating system, 479
voidmethod, 70, 71, 179
voidreserved word, 82
Von Neumann, John, 497
Vulcan, 522W
“Walkie-Talkie,” invention of, 152
Walk-throughs, 191, 197
of binary search algorithm, 554, 555 , 556
WAN.SeeWide area network
Warning notices case study, 184–190
Warnock, John, 523
Watson, T.J., 41
Web.SeeWorld Wide WebT
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