Chapter 2 Vocabulary

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Chapter

2 Vocabulary

Algorithm - A set of steps that outline how to solve a problem.

Argument

Data - Data passed to a method for processing.

Bytecode - Compiled java source code.

Class - The description of an object.

Code conventions - A set of guideline for writing an application .

Comment

Text - Text that provides information to the reader of program code.

Comment block - Multiline comments that describe a program, class, or method.

Compiling - The process where source code is converted to code the computer understands.

Controlling class - The class in an application that contains the main() method.

Encapsulation - An object-oriented language feature.

Escape Sequence - A backslash followed by a symbol that together represent a character.

Execute - To run a program.

Importable

Package -Package code that can be used by any application.

Inheritance - And object-oriented language feature.

Interpreter

Software - Software that runs each bytecode instructions of a compiled Java program.

Java application - A package with a controlling class and possibly other classes.

Java Virtual Machine (Java VM) - The java bytecode interpreter.

Just-in-time compiler (JIT) - Software that converts bytecode to specific machine code.

Library (see Package.) - A group of related classes.

Machine code - The most basic computer language, which is comprised of 1's and 0's

Method - A named set of statements that preform a single, well-defined task. A method is always a member of a class

Object-oriented programming (OOP) - A systematic, modular approach to developing complex programs.

Output Stream - Sends data to an output device, typically the computer screen.

Package - A group of related classes. Also called a library.

Platform-independent application - A program that can be run on any computer regardless of operating system or hardware configuration.

Polymorphism - An object-oriented language feature.

Pseudocode - An algorithm written in a mix of English and program code.

Run - To run a program.

Source code - The code typed by a programmer.

Statement - An instruction in a program/\,

String - A set of characters.

Syntax error - A statement that violates the rules of Java.

Chapter

2 Java: Just know these commands.

/* */ Used to enclose single or

multiline comments.

/** */ Used to enclose documentation comments.

// Used to

begin a single line comment.

{ } Used to begin and end a set of related

statements.

; Required

at the end of each program statement.

\\ Escape

sequence for displaying a backslash.

\" Escape

sequence for displaying a double quotation mark.

\n Escape

sequence for displaying a newline.

\t Escape

sequence for displaying a tab.

Define:

class - the description of an object

format() - method that displays more precisely formatted output to the screen

java.lang.System - the class that contains the out member

main() - the method in the controlling class that is automatically executed when a Java application is run

out - the java.lang.system that represents the standard output stream

package - statement used to declare a package

print() - method that displays output to the screen

public - An access modifier that declares a class or method as available to any code

static - A declaration used for class methods

void - Indicates a method will not return a value