Java — page 6 of 10

Java terms

501. JSP standard action An action that is defined in the JSP specification and is always available to a JSP page.
502. JSP tag file A source file containing a reusable fragment of JSP code that is translated into a tag handler when a JSP page is translated into a servlet.
503. JSP tag handler A Java programming language object that implements the behavior of a custom tag.
504. JSP tag library A collection of custom tags described via a tag library descriptor and Java classes.
505. JSR (Java Specification Request) Java Specification Request (JSR) is the actual description of proposed and final specifications for the Java platform.
506. JSTL See JavaServer Pages Standard Tag Library.
507. JTA Joint Technical Architecture (JCS term).
508. JTS See Java Transaction Service.
509. Just-in-time (JIT) Compiler A compiler that converts all of the bytecode into native machine code just as a Java program is run.
510. JVM See Java Virtual Machine (JVM).
511. key value The object used to generate an associated hash code for lookup in an associative data structure.
512. keystore A file containing the keys and certificates used for authentication.
513. Keyword Java sets aside words as keywords - these words are reserved by the language itself and therefore are not available as names for variables or methods.
514. KittyHawk KittyHawk is a set of APIs used by LG Telecom on its IBook and p520 devices. KittyHawk is based on CLDC.
515. KJava KJava is an outdated term for Java ME. It comes from an early package of Java software for PalmOS, released at the 2000 JavaOne show.
516. kSOAP kSOAP is a SOAP API suitable for the Java ME, based on kXML.
517. KVM (Kilobyte Virtual Machine) The KVM is a compact Java virtual machine (JVM) that is designed for small devices. It supports a subset of the features of the JVM.
518. kXML The kXML project provides a small footprint XML parser that can be used with Java ME.
519. LAN (Local Area Network) A network of computers that generally spans a small area, such as a single building.
520. layout manager An object responsible for sharing the available space between multiple components within a graphical container.
521. LCDUI (Liquid Crystal Display User Interface) LCDUI is a shorthand way of referring to the MIDP user interface APIs, contained in the javax.microedition.lcdui package.
522. left shift operator The left shift operator (<<) is a bit manipulation operator. It moves the bits in its left operand zero or more places to the left, according to the value…
523. lexical Pertaining to how the characters in source code are translated into tokens that the compiler can understand.
524. lexicographic ordering The ordering of words as they would be found in a dictionary. It should be noted that different locales order similar looking words according to their own…
525. life cycle (J2EE component) The framework events of a J2EE component's existence. Each type of component has defining events that mark its transition into states in which it has…
526. life cycle (JavaServer Faces) A set of phases during which a request for a page is received, a UI component tree representing the page is processed, and a response is produced.
527. LIFO (last in, first out) The (LIFO) semantics of a stack data structure. Items are removed in the opposite order to which they arrived in the stack, so newer items are always…
528. lightweight process See thread.
529. line feed See new line.
530. linker A short, double-stranded oligonucleotide containing a restriction endonuclease recognition site, which is ligated to the ends of a DNA fragment.
531. literal A string, a number, or a date which directly represents a constant value. 'XYZ123', '1234' and '6/10/57' are examples of a string literal, a numeric…
532. little-endian A common difference between machines is the order in which they store the individual bytes of multi-byte numerical data.
533. livelock A situation in which a thread waits to be notified of a condition but, on waking, finds that another thread has inverted the condition again.
534. local inner class An inner class defined within a method.
535. local subset That part of the DTD that is defined within the current XML file.
536. local variable A variable defined inside a method body.
537. Locale Details which are dependent upon conventions and customs adopted by a particular country or culture.
538. logical error An error in the logical of a method or class. Such an error might not lead to an immediate runtime error, but could have a significant impact on overall…
539. logical operators Operators, such as &&, ||, &, | and ^ that take two boolean operands and produce a boolean result.
540. long A term signifying ownership of securities. "I am long 100 XYZ," means that the speaker owns 100 shares of XYZ.
541. look-and-feel The visual impression and interaction style provided by a user interface. This is predominantly the responsibility of the window manager (in collaboration…
542. loop variable A variable used to control the operation of a loop, such as a for loop. Typically, a loop variable will be given an initial value and it is then…
543. low level programming languages Often known as `assembly languages', these provide little more than the basic instruction set of a particular Central Processing Unit.
544. magic number A constant value with a significance within a particular context. For instance, the value 12 could mean many different things - the number of hours you…
545. main method The starting point for program execution public static void main(String[] args)
546. managed bean creation facility A mechanism for defining the characteristics of JavaBeans components used in a JavaServer Faces application.
547. manifest file A file held in a Java Archive (JAR) file, detailing the contents of the archive.
548. marking interface An interface with no methods.
549. member Member means any person who has been admitted to membership in the Connecticut credit union in accordance with state law.
550. memory leak A situation in which memory that is no longer being used has not been returned to the pool of free memory.
551. message In the Java Message Service, an asynchronous request, report, or event that is created, sent, and consumed by an enterprise application and not by a human.
552. message consumer An object created by a JMS session that is used for receiving messages sent to a destination.
553. message passing We characterize object interactions as message passing. A client object sends a message to a server object by invoking a method from the server's class.
554. message producer An object created by a JMS session that is used for sending messages to a destination.
555. message-driven bean An enterprise bean that is an asynchronous message consumer. A message-driven bean has no state for a specific client, but its instance variables can…
556. method the course of action or technique followed in conducting a specific analysis or comparison leading to an analytical result.
557. method body The body of a method: everything inside the outermost block of a method.
558. method header The header of a method, consisting of the method name, its result type, formal arguments and any exceptions thrown. Also known as a method signature.
559. method overloading Two or more methods with the same name defined within a class are said to be overloaded. This applies to both constructors and other methods.
560. method overriding A method defined in a super class may be overridden by a method of the same name defined in a sub class.
561. method permission An authorization rule that determines who is permitted to execute one or more enterprise bean methods.
562. method result The value returned from a method via a return statement. The type of the expression in the return statement must match the return type declared in the…
563. method signature A synonym for method header.
564. method variable See local variable.
565. method-binding expression A JavaServer Faces EL expression that refers to a method of a backing bean. This method performs either event handling, validation, or navigation…
566. MExE (Mobile Execution Environment) The Mobile Execution Environment (MExE) is a specification created by the 3GPP which details an applicatio n environment for next generation mobile…
567. micro-chip A small electronic device used to build computers and other electronic equipment.
568. MIDlet A MIDlet is an application written for MIDP. MIDlet applications are subclasses of the javax.microedition.midlet.MIDlet class that is defined by MIDP.
569. MIDlet suite MIDlets are packaged and distributed as MIDlet suites. A MIDlet suite can contain one or more MIDlets.
570. MIDP (Mobile Information Device Profile) The Mobile Information Device Profile (MIDP) is a specification for a Java ME profile.
571. MIDP-NG (Next Generation MIDP specification) The Next Generation MIDP specification is currently under development by the Java Community Process.
572. MIME Multipurpose Internet Mail Extension.
573. mixed-content model A DTD specification that defines an element as containing a mixture of text and one more other elements.
574. Mobitex Mobitex is a packet-switched, narrowband PCS network, designed for wide-area wireless data communications.
575. modal A dialog is modal if its parent application is blocked from further activity until the dialog has completed. See non-modal.
576. model-view pattern A pattern in which the representation of data (the model) is kept separate from its visualization (the view).
577. Modem A device that allows a computer system to transmit data over telephone or cable lines.
578. Modulation Modulation is the method by which a high-frequency digital signal is grafted onto a lower-frequency analog wave, so that digital packets are able to ride…
579. module The smallest self-contained, environmentally protected structure housing interconnected photovoltaic cells and providing a single dc electrical output…
580. monitor (MAH-nih-ter) In medicine, to regularly watch and check a person or condition to see if there is any change.
581. MSC (Mobile Switching Center) A Mobile Switching Center (MSC) is a unit within a cellular phone network that automatically coordinates and switches calls in a given cell.
582. multiple inheritance The ability of a class or interface to extend more than one class or interface.
583. multiple-boot options The hardware configurations of some computers are able to run different operating system and window manager combinations.
584. multiprogramming system An operating system that is able to run multiple programs concurrently.
585. multithreaded Describes a program that is designed to have parts of its code execute concurrently. See also thread.
586. mutator method A method specifically designed to allow controlled modification of a private attribute of a class.
587. Mutual Authentication An authentication mechanism employed by two parties for the purpose of proving each other's identity to one another.
588. mutual recursion Recursion that results from two methods calling each other recursively.
589. namespace A prefix applied to URIs, URNs, and XML entities to prevent naming conflicts.
590. naming context A set of associations between unique, atomic, people-friendly identifiers and objects.
591. naming environment A mechanism that allows a component to be customized without the need to access or change the component's source code.
592. Native A Java keyword that is used in method declarations to specify that the method is not implemented in the same Java source file, but rather in another…
593. native method A method written in a language other than Java, but accessible to a Java program.
594. nested class A class defined inside an enclosing class. See inner class.
595. NEW Nuclear Weapons Effect.
596. new operator The operator used to create instances {instance} of a class.
597. newline The \n character.
598. no-arg constructor A constructor that takes no arguments. By default, all classes without an explicit constructor have a default no-arg constructor with public access.
599. non-modal A dialog is non-modal if its parent application is not blocked from further activity while the dialog is being shown. See modal.
600. non-static nested class See inner class.