AP Computer Science Unit 1

A set of commands written in a programming language to perform a task

Structural language that allows the programmer to communicate with the computer

A language a computer understands that consists of commands written only in binary (0’s and 1’s)

Comments that go beyond one line of code

denoted with :

/* (to open the comment) and */ (to close)

Comment that is only one line of code

denoted with:

//

names that are given to show data that are stored in the memory of a computer when a program is being executed

the process of an interpreter converting a programmers code into binary

a program is unable to compile due to errors in the programs code

errors that happen while the program is running

When a program produces the incorrect output due to a flaw in the program

type identifier = data

NO

they simply assign data to the identifier

When data is associated with an identifier it is referred to as a .

NO

once a variable is assigned and given a type it can NEVER be changed (for now)

basic type of data; built in data types that hold a limited amount of data

any number that is an integer

cannot be decimals

any number that can be positive or negative and can be a fraction or decimal

a value that is true or false

True = 1 False = 0

represents a single character that can be seen on a keyboard

• letters, numbers, spaces, and special characters

treating a value as another type

When a string value is joined to another piece of data

basic value that can be interpreted in only one way

addition

Subtraction

modulus

does the division of the variables then returns the remainder

division

increment operator

it increases the value of a number by one

decrement operator

decreases the value of a number by one