WGU D278 - Scripting and Programming Foundations Latest Update Graded A+

WGU D278 - Scripting and Programming Foundations Latest Update Graded A+ Program Consists of instructions executing one at a time. Input A program gets data, perhaps from a file, keyboard, touchscreen, network, etc. Process A programs performs computations on that data, such as adding two values like x + y. Output A programs puts that data somewhere, such as to a file, screen, network, etc. Computational thinking Creating a sequence of instructions to solve a problem. Algorithm A sequence of instructions that solves a problem. Statement Carries out some action and executing one at a time. String literal Consists of text (characters) within double quotes, as in "Go #57!". Cursor Indicates where the next output item will be placed in the output. Newline A special two-character sequence n whose appearance in an output string literal causes the cursor to move to the next output line. The newline exists invisibly in the output. Comment Text added to a program, read by humans to understand the code, but ignored by the program when executed. Whitespace Refers to blank spaces (space and tab characters) between items within a statement, and to newlines. Whitespace helps improve readability for humans, but for execution purposes is mostly ignored. Pseudocode Text that resembles a program in a real programming language but is simplified to aid human understanding. Assignment statement Assigns a variable with a value, such as x = 5. An assignment statement's left side must be a variable. The right side is an expression.Examples: x = 5, y = a, or z = w + 2. = In programming, = is an assignment of a left-side variable with a right-side value. It does not represent equality like in mathematics. Variable declaration Declares a new variable, specifying the variable's name and type. Identifier A name created by a programmer for an item like a variable or function. An identifier must: be a sequence of letters (a-z, A-Z), underscores (_), and digits (0-9), AND start with a letter or underscore. Reserved word or keyword A word that is part of the language, like integer, Get, or Put. A programmer cannot use a reserved word as an identifier. Lower camel case Abuts multiple words, capitalizing each word except the first, such as numApples.