C preprocessorThe typical C compiler's first pass, which processes lines beginning with # for conditional compilation and macro definition and does various…
call by referenceAn "argument"-passing mechanism in which the "formal arguments" refer directly to the "actual arguments", and the "subroutine" can change the actual…
call by valueA semantics of passing an argument to a method in which a copy of the actual argument value is taken and placed in a separate memory location, represented…
callbackA "handler" that you register with some other part of your program in the hope that the other part of your program will "trigger" your handler when some…
callback methodsComponent methods called by the container to notify the component of important events in its life cycle.
caller principalThe principal that identifies the invoker of the enterprise bean method.
canonicalReduced to a standard form to facilitate comparison.
capturingThe use of parentheses around a "subpattern" in a "regular expression" to store the matched "substring" as a "backreference".
carriage returnThe \r character. Also used as a synonym for the `Return' or `Enter' key used to terminate a line of text.
cascade deleteA deletion that triggers another deletion. A cascade delete can be specified for an entity bean that has container-managed persistence.
cascading if-else statementA form of if-else statement in which each else-part (except the last) consists of a further nested if-else statement.
CASEThe last card of a certain rank in the deck. Example: "The flop came J-8-3; I've got pocket jacks, he's got pocket 8's, and then the case eight falls on…
case labelThe value used to select a particular case in a switch statement.
case sensitiveA test that is sensitive to whether a character is upper-case (e.g., 'A') or lower-case (e.g., 'a').
CASTCommercial Acquisition Streamlining Team (USAF team name).
castingExplicit conversion from one data type to another.
CatchAt a recreational fishery, refers to the number of fish captured, whether they are kept or released.
catch clauseThe part of a try statement responsible for handling a caught exception.
catching exceptionsExceptions are caught within the catch clause of a try statement. Catching an exception gives the program an opportunity to recover from the problem or…
CDATAA predefined XML tag for character data that means "don't interpret these characters," as opposed to parsed character data (PCDATA), in which the normal…
CDMA OneAlso know as IS-95, CDMAOne is a 2nd generation wireless technology. Supports speeds from 14.4Kbps to 115K bps.
CDMA2000Also known as IS-136, CDMA2000 is a 3rd generation wireless technology. Supports speeds ranging from 144Kbps to 2Mbps.
CDPD (Cellular Digital Packet Data)A data communication standard utilizing the unused capacity of cellular voice providers to transfer data.
Central Processing UnitThe Central Processing Unit (CPU) is the heart of a computer as it is the part that contains the computer's ability to obey instructions.
certificate authorityA trusted organization that issues public key certificates and provides identification to the bearer.
CharA byproduct of low-temperature carbonization of a solid fuel.
character classA square-bracketed list of characters used in a "regular expression" to indicate that any character of the set may occur at a given point.
character propertyA predefined "character class" matchable by the \p "metasymbol". Many standard properties are defined for "Unicode".
character set encodingThe set of values assigned to characters in a character set. Related characters are often grouped with consecutive values, such as the alphabetic…
checked exceptionAn exception that must be caught locally in a try statement, or propagated via a throws clause defined in the method header. See unchecked exception.
cHTML (Compact HTML)Compact HTML (cHTML) is a subset of HTML which is designed for small devices. The major features of HTML that are excluded from cHTML are: JPEG image…
circumfix operatorAn "operator" that surrounds its "operand", like the angle operator, or parentheses, or a hug.
classArticle I, section 3 of the Constitution requires the Senate to be divided into three classes for purposes of elections.
class bodyThe body of a class definition. The body groups the definitions of a class's members - fields, methods and nested classes.
class constantA variable defined as both final and static.
class headerThe header of a class definition. The header gives a name to the class and defines its access.
class inheritanceWhen a super class is extended by a sub class, a class inheritance relationship exists between them.
class scopePrivate variables defined outside the methods within a class have class scope. They are accessible from all methods within the class, regardless of the…
classpathThe path searched by the compiler and interpreter for class definitions. The class path may be set by a command-line argument to either, or via an…
clientAny computer system that requests a service of another computer system. A workstation requesting the contents of a file from a file server is a client of…
client-certificate authenticationAn authentication mechanism that uses HTTP over SSL, in which the server and, optionally, the client authenticate each other with a public key certificate…
cloisterA "cluster" used to restrict the scope of a "regular expression modifier".
closureIn transportation, the process of a unit arriving at a specified location. It begins with the arrival of the first element at a designated location and…
clusterClusters are fixed length blocks of bytes that store data for Microsoft operating systems.
code generatorA system that writes code for you in a low-level language, such as code to implement the backend of a compiler. See "program generator".
code subpatternA "regular expression" subpattern whose real purpose is to execute some Perl code, for example, the (?{...}) and (??{...}) subpatterns.
codebaseWorks together with the code attribute in the <APPLET> tag to give a complete specification of where to find the main applet class file: code specifies…
CohesionThe mutual attraction of soil particles due to molecular and capillary forces in the presence of water.
collating sequenceThe order into which characters sort. This is used by "string" comparison routines to decide, for example, where in this glossary to put "collating…
commandFor command-oriented functions, the authorization required to perform command operations. 55
command bufferingA mechanism in Perl that lets you store up the output of each Perl "command" and then flush it out as a single request to the "operating system".
command nameThe name of the program currently executing, as typed on the command line. In C, the "command" name is passed to the program as the first command-line…
command-line argumentArguments passed to a program when it is run. A Java program receives these in the single formal argument to its main method public static void…
command-line argumentsThe values you supply along with a program name when you tell a "shell" to execute a "command". These values are passed to a Perl program through @ARGV.
commentA piece of text intended for the human reader of a program. Compilers ignore their contents.
commitTo send a person to prison, asylum or reformatory by a court order.
Common Gateway InterfaceThe Common Gateway Interface (CGI) is a standard that allows Web clients to interact with programs on a Web server.
compilationThe process of translating a programming language. This often involves translating a high level programming language into a low level programming…
compilation unitThe smallest unit of source code that can be compiled. In the current implementation of the Java platform, the compilation unit is a file.
compile phaseAny time before Perl starts running your main program. See also "run phase". Compile phase is mostly spent in "compile time", but may also be spent in…
compile timeThe time when Perl is trying to make sense of your code, as opposed to when it thinks it knows what your code means and is merely trying to do what it…
compilerA program which performs a process of compilation on a program written in a high level programming language.
complement operatorThe complement operator, ~, is used to invert the value of each bit in a binary pattern. For instance, the complement of 1010010 is 0101101.
componentSubsystem, assembly, or subassembly of logically grouped hardware and software, that performs interacting tasks to provide BMDS capability at a functional…
component contractThe contract between a J2EE component and its container. The contract includes life-cycle management of the component, a context interface that the…
component-managed sign-onA mechanism whereby security information needed for signing on to a resource is provided by an application component.
composerA "constructor" for a "referent" that isn't really an "object", like an anonymous array or a hash (or a sonata, for that matter).
compositingThe process of superimposing one image on another to create a single image.
concatenationThe process of gluing one cat's nose to another cat's tail. Also, a similar operation on two strings.
concurrencyPart of an acquisition strategy which combines or overlaps two or more phases of the acquisition process, or combines development T&E with operational T&E.
conditionA health problem with certain characteristics or symptoms.
conditionalSomething "iffy". See "Boolean context".
conditional operatorA symbol or keyword specifying how to compare values. Conditional operators are used to query a database.
ConfigurationThe number, shape, organization and relationship of panes (lights) of glass, sash, frame, muntins or tracery.
connectionThe physical connection (e.g. transmission lines, transformers, switch gear, etc.
connection handshakeAn exchange of messages between two processes in an attempt to establish a connection between them.
connectorA hold'em starting hand in which the two cards are one apart in rank. Examples: KQs, 76.
Connector architectureAn architecture for integration of J2EE products with enterprise information systems.
constA reserved Java keyword not used by current versions of the Java programming language.
constantA variable whose value may not be changed. In Java, these are implemented by final variables.
constructAn engineered chimeric DNA designed to be transferred into a cell or tissue. Typically, the construct comprises the gene or genes of interest, a marker…
constructorA constructor is automatically called when an instance of its class is created.
ContainerIn the Exchange Administrator program, an object that contains other objects. For example, the Recipients container is composed of recipient objects.
container-managed persistenceThe mechanism whereby data transfer between an entity bean's variables and a resource manager is managed by the entity bean's container.
container-managed sign-onThe mechanism whereby security information needed for signing on to a resource is supplied by the container.
container-managed transactionA transaction whose boundaries are defined by an EJB container. An entity bean must use container-managed transactions.
contentIn an XML document, the part that occurs after the prolog, including the root element and everything it contains.
contextThe surroundings, or environment. The context given by the surrounding code determines what kind of data a particular "expression" is expected to return.
context attributeAn object bound into the context associated with a servlet.