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Applets:
Java programs that are embedded in a Web page.
Application:
stand-alone, executable program.
Applications:
stand-alone Java programs.
Architecturally neutral:
you can use it to write a program that runs on any platform (operating system).
Arguments:
information passed to a method so it can perform its task.
Attributes:
characteristics that define an object as part of a class.
Block comments:
start with a forward slash and an asterisk (/*) and end with an asterisk and a forward slash (*/). Block comments can appear on a line by themselves, on a line before executable code, or on a line after executable code. Block comments can also extend across as many lines as needed.
Bytecode:
consists of programming statements that have been compiled into binary format.
Calls:
in procedural program, invoke a series of procedures to input, manipulate, and output values.
Class:
group or collection of objects with common properties.
Comment out:
turn a statement into a comment so the compiler will not execute its command.
Compiler, or interpreter:
program that translates language statements into machine code.
Computer program:
set of instructions that you write to tell a computer what to do.
Console applications:
support character output to a computer screen in a DOS window.
Debugging:
free a program of all errors.
Dialog box:
GUI object resembling a window in which you can place messages you want to display.
Encapsulation:
refers to the hiding of data and methods within an object.
Executing a statement:
carry it out.
FAQs:
frequently asked questions.
High-level programming language:
allows you to use a vocabulary of reasonable terms, such as "read," "write," or "add," instead of the sequences of on and off switches that perform these tasks.
Identifier:
name of a class or object.
Import statement:
used when you want to access a built-in Java class that is contained in a package.
Inheritance:
ability to create classes that share the attributes and methods of existing classes, but with more specific features.
Instance:
existing object of a class.
Java:
developed by Sun Microsystems as an object-oriented language used both for general-purpose business applications and for interactive World Wide Web-based Internet applications.
Java API:
application programming interface, a collection of information about how to use every prewritten Java class.
Java interpreter:
program checks the bytecode and communicates with the operating system, executing the bytecode instructions line-by-line within the Java virtual machine.
Java virtual machine (JVM):
hypothetical (software-based) computer used to run Java.
Javadoc comments:
special case of block comments begin with a forward slash and two asterisks (/**) and end with an asterisk and a forward slash (*/). You can use javadoc comments to generate documentation with a program named javadoc.
JOptionPane:
Java class allows you to produce dialog boxes.
Line comments:
start with two forward slashes (//) and continue to the end of the current line. Line comments can appear on a line by themselves or at the end of a line following executable code.
Literal string:
series of characters that appear exactly as entered. Any literal string in Java appears between double quotation marks.
Logic:
executing the various statements and procedures in the correct order to produce the desired results.
Logic error:
occurs when a program compiles successfully but produces an error during execution.
Machine language:
program written in circuitry-level language, as a series of on and off switches.
Method:
self-contained block of program code, similar to a procedure.
Objects:
instances of a class; they are made up of attributes and methods.
Object-oriented programs:
creating classes, creating objects from those classes, and creating applications that use those objects. Thinking in an object-oriented manner involves envisioning program components as objects that are similar to concrete objects in the real world; then, you can manipulate the objects to achieve a desired result.
Package:
contains a group of built-in Java classes.
Parameters:
arguments passed to methods.
Pascal casing:
using an uppercase letter to begin an identifier and to start each new word in an identifier.
Passing:
sending arguments to a method.
Polymorphism:
describes the feature of languages that allows the same word to be interpreted correctly in different situations based on the context.
Procedural programming:
style of programming in which sets of operations are executed one after another in sequence.
Procedures:
sets of operations performed by a computer program.
Program:
set of instructions that you write to tell a computer what to do.
Program comments:
nonexecuting statements that you add to a Java file for the purpose of documentation.
Program statements:
similar to English sentences; they carry out the tasks that programs perform.
Run-time error:
occurs when a program compiles successfully but does not execute.
SDK:
Java Software Development Kit.
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