AP comp sci 2

Variable Assignment

Evaluates an expression and assigns the result to a variable.

DISPLAY

Displays the value of an expression followed by a space.

INPUT()

Accepts a value from the user and returns it.

Arithmetic Operators

Used to perform arithmetic operations: +, -, *, /.

MOD

Evaluates to the remainder when one integer is divided by another.

RANDOM(a, b)

Returns a random integer between a and b, inclusive.

Relational Operators

Used to test the relationship between two expressions.

NOT condition

Evaluates to true if the condition is false.

AND

Evaluates to true if both conditions are true.

OR

Evaluates to true if at least one condition is true.

IF Statement

Executes a block of statements if the condition evaluates to true.

IF/ELSE Statement

Executes one block of statements if the condition is true, and another if false.

REPEAT n TIMES

Executes a block of statements n times.

REPEAT UNTIL

Repeats a block of statements until the condition is true.

List Indexing

Refers to the element of a list at a specific index.

Assignment in List

Assigns the value of one list element to another.

Creating a List

Assigns values to elements in a list.

For Each Loop

Iterates over each item in a list.

INSERT in List

Inserts a value at a specified index and shifts elements.

APPEND in List

Adds a value at the end of the list.

REMOVE in List

Removes an element from a list and shifts elements left.

LENGTH of List

Evaluates to the number of elements in a list.

Procedure Definition

Defines a procedure that can take parameters and contain instructions.

RETURN in Procedure

Exits the procedure and returns a value.

CAN_MOVE

Evaluates to true if there is an open square in the direction the robot is facing.

Arithmetic Procedures

Functions that perform calculations using arithmetic operators.

Boolean Logic

A way of representing truth values using true and false.

Conditionals

Statements that control the flow of execution based on conditions.

Iteration in Programming

Repeating operations until a certain condition is met.

List Operations

Methods to manipulate and manage lists in programming.

Error Handling in Lists

The process of responding to errors in list indexing.

Parameters in Procedures

Values passed to a procedure to customize its behavior.

Robot Movement

The ability of a robot to move in a grid-based environment based on conditions.

Open Square

A square in the grid that is available for the robot to move into.

Grid Boundaries

The edges of the grid which limit where the robot can move.

Value Assignment

The act of assigning data to a variable or an element in a list.

Return Value

The value yielded by a procedure when it is called.

Execution of a Block

Running a set of instructions defined in brackets.

Initialization of a Variable

Setting a variable to its initial value during declaration.