Page #497 (Programming Exercises)

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Appendix A Java Keywords

Appendix B The ASCII Character Set

Appendix C Operator Precedence Chart

Appendix D Java Modifiers

Appendix E Special Floating-Point Values

Appendix F Bit Operations

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Appendix A. Java Keywords

The following fifty keywords are reserved for use by the Java language:

abstract

assert

boolean

break

byte

case

catch

char

class

const

continue

default

do

double

else

enum

extends

for

final

finally

float

goto

if

implements

import

instanceof

int

interface

long

native

new

package

private

protected

public

return

short

static

strictfp ^[*]

^[*] The strictfp keyword is a modifier for method or class to use strict floating-point calculations. Floating-point arithmetic can be executed in one of two modes: strict or nonstrict . The strict mode guarantees that the evaluation result is the same on all Java Virtual Machine implementations . The nonstrict mode allows intermediate results from calculations to be stored in an extended format different from the standard IEEE floating-point number format. The extended format is machine-dependent and enables code to be executed faster. However, when you execute the code using the nonstrict mode on different JVMs, you may not always get precisely the same results. By default, the nonstrict mode is used for floating-point calculations. To use the strict mode in a method or a class, add the strictfp keyword in the method or the class declaration. Strict floating-point may give you slightly better precision than nonstrict floating-point, but the distinction will only affect some applications. Strictness is not inherited; that is, the presence of strictfp on a class or interface declaration does not cause extended classes or interfaces to be strict.

super

switch

synchronized

this

throw

throws

transient

try

void

volatile

while

The keywords goto and const are C++ keywords reserved, but not currently used, in Java. This enables Java compilers to identify them and to produce better error messages if they appear in Java programs.

The literal values true , false , and null are not keywords, just like literal value 100 . However, you cannot use them as identifiers, just as you cannot use 100 as an identifier.

assert is a keyword added in JDK 1.4 and enum is a keyword added in JDK 1.5.