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The Java Language Specification - The Java Language Specification 1st

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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

O

object-oriented concepts
See class(es); encapsulation; fields; inheritance; method(s); objects
objects
See also arrays; classes; instances; interfaces; types
Class, array, 199
fields that reference, final modifier effect on changes to, 146
finalization attributes, 232
have classes, while variables have types, 47
life cycle of, 233
Object class
no analogue for interfaces, 185
specification, 199, 40
with Class, 458
operations on references to, 39
reachable, finalization implications, 232
reference, see references
state
impact of changes, 39
transient fields not part of, 147
term definition and specification, 38
unreachable, finalization implications, 232
Observable class, 643
Observer interface, 645
Occam, William of, 351
Occam's razor, 351
See also optimization
octal
See also numbers
base, permitted in integer literals, 19
numerals, specification, 20
one of phrase
grammar notation use, 10 one too many, 276

one too many
operators
See also constructors; expressions; initialization; methods; numbers
arithmetic, numeric promotion, specification, 72
assignment, as only way to change the value of a primitive variable, 31
binary, evaluation order, 305
boolean, 36
compound assignment, evaluation order, 305
floating-point, 34
signed infinity produced by overflow, 35
signed zero produced by underflow, 35
integer
divide, divide by zero exception thrown by, 32
overflow not indicated by, 32
underflow not indicated by, 32
integral, 31
list of, 28
operands evaluated before, 307
precedence, in expression evaluation, 308
on reference types, 39
remainder, divide by zero exception thrown by, 32
string concatenation
constructor invocation by, 177
creating new instances with, 38
thread, term definitions, 401
opt subscript
grammar notation use, 8
optimization
during
class loading, techniques for, 219
preparation phase of linking, 221
resolution phase of linking, 221
final method inlining, 160
finalization, 232
reachable objects reduction, 232
linking
initialization phase of, 227
linkage editing, 222
resolution strategies, 220
optional symbol
term definition, 8
or method
of class BitSet, 621
order
evaluation
arguments lists left-to-right, 305
binary operators, 305
compound assignment, 305
order
evaluation
left-hand operand first, 305
operands evaluated before operations, 307
of other expressions, 310
parentheses and precedence respected, 308
execution, thread rules, 403
field initialization, at run-time, 187
finalizer invocations, implications of no ordering imposition, 234
of floating-point values, 33
of occurrence, of initialization of types, 223
thread interaction, consequences of, 400
ordinaryChar method
of class StreamTokenizer, 716
ordinaryChars method
of class StreamTokenizer, 716
origin
of arrays, 195
out field
of class FileNameDescriptor, 760
of class FilterOutputStream, 730
of class System, 580
OutOfMemoryError class, 611
output
See also files; input; streams
BufferedOutputStream class, 732
ByteArrayOutputStream class, 727
FileOutputStream class, 722
FilterOutputStream class, 730
OutputStream class, 720
PipedOutputStream class, 725
overflow
See also arithmetic; exceptions; numbers
floating-point operators, signed infinity produced by, 35
not indicated by integer operators, 32
overloading
See also object-oriented concepts; inheritance; methods
of abstract interface methods
declarations, 190
examples, 191
of constructors, 180
binary compatibility considerations, 257
of methods, 167
binary compatibility considerations, 257
example, 168
term definition, 167, 87
overriding
See also object-oriented concepts; scope
examples, 168, 169, 170, 172, 190
incorrect, 169
vs. hiding, example, 170
incorrect because of throws, example, 174
large example, 172
methods
abstract
in abstract classes, 158
of non-abstract instance methods, 159
binary compatibility considerations, 258
in interfaces, 189
example, 190
instance, 165
requirements in, 166
term definition, 87
Ozymandias, 353

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Java Language Specification (HTML generated by Suzette Pelouch on February 24, 1998)
Copyright © 1996 Sun Microsystems, Inc. All rights reserved
Please send any comments or corrections to doug.kramer@sun.com