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SDLC Unit 2

Systems Analysis & Design Unit 2

TermDefinition
'\n' escape sequence for new line
'\t' escape sequence for tab
.cpp C++ Source code
/ comment
// Program code goes here. line comment
<< the stream insertion operator
<iostream> Reads and writes to the console.
\" syntax to print double quote
\' syntax to print single quote
\\ syntax to print backslash (\)
algorithm a step-by-step procedure for solving a problem in a finite amount of time
assembly language instructions made up of mnemonic codes
Block Comments Start with a forward slash and an asterisk and end with an asterisk and a forward slash (
compiler a program that translates instructions written in a high-level language into the equivalent machine code
computer instructions written in 1's and 0's Binary or Machine language
concatenate join them together
console output the simplest type of screen output that a program can display, merely text to a command line
cout << "Hello World!: << endl Produces "Hello World!" in cmd
cout << fixed << showpoint << setprecision(2) controls output of floating-point numbers
cout << right << ... syntax that allows the programmer to specify whether contents of field will be left or right justified
cout << setfill('?') << ... allows programmer to fill blank columns in a field with a character
cout a filestream variable that represents the default output device
cout.unsetf(ios::fixed) syntax to disable the fixed manipulator
endl (same as '\n') strean manipulator that causes the insertion point (cursor) to move to the beginning of the next line, ending the current line
escape sequence starts with a backslash character (\) and is followed by one or more control characters
fixed:: format output to use decimals
flowchart a diagram that shows the logical flow of a program
Flowlines Connect the steps. Show the sequence of statements. Have arrows to show the direction
Formula Mathematical relationship between numbers
function a group of one or more programming statements that collectively has a name. reusable.
hand tracing debugging process where you pretend that you are the computer executing a program
high-level language instructions are closer to natural language, use familiar English words and symbols
Identifier The name of a program component such as a variable, class, or method
IDEs (Integrated Development Environments) text editor, compiler, debugger, and other utilities integrated into a package with a single set of menus
Interpreters Translates the program line by line as the program is running
iomanip header file that contains commonly used manipulators used to format output
key words words that have a special meaning and can only be used for their intended purpose
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.
Linkers Add in additional code to make the program self-executable
Literal a series of characters that is used exactly as entered.
machine language instructions made up of sequences of 0s and 1s
multi-line comments start with a /(asterick) and end with a (asterick)/, program ignores everything between these markers
Namespace identifies groups of library files or entities
object programming element that contains data and the procedures that operate on the data
Object-oriented program Programming methodology focused on creating objects with behaviors and values to accomplish its goal
operator symbol that denotes an action to be performed on one or more operand
output any information the computer produces
preprocessor directive a program that finds and attaches to your program the indicated libraries for compilation
procedural programming the programmer constructs procedures (or functions), the major tasks to be performed
program a set of instructions that a computer follows to perform a task
programmer (or software developer) a person with the training and skills necessary to design, create and test computer programs
programming language a set of rules, symbols, and special words used to tell a computer how to accomplish a task
programming style the way a programmer uses identifiers, spaces, tabs, blank lines, and punctuation characters to visually arrange a program's source code
psuedocode a cross between human language and programming language
reserved keywords words that are used for special purposes in a program
setprecision:: format output to use specified number of decimals
setw(x) print a column or field of data that is x spaces long
showpoint format output to always show decimals
statement a complete instruction that causes the computer to perform some action
std::cout << "Hello World!" qualified C++ statement identifying the library, the object, and the value to be inserted.
string literal / constant the group of characters inside the quotation marks
syntax computer language rules that must be followed when constructing a program
Created by: melissagoodall