A C D E F G H I L M N O R S T W

A

act() - Method in class Minnow

Acts for one step in the simulation.

add(Locatable) - Method in interface Environment

Adds a new object to this environment at the location it specifies.

allObjects() - Method in interface Environment

Returns all the objects in this environment.

C

col() - Method in class Location

Returns the column coordinate of this location.

color() - Method in class Minnow

Returns this minnow's color.

compareTo(Object) - Method in class Location

Compares this location to other for ordering.

D

Direction - class Direction.

AP® Computer Science Marine Biology Simulation:
The Direction class encapsulates the notion of a compass direction such as North, East, South, West.

direction() - Method in class Minnow

Returns this minnow's direction.

Direction() - Constructor for class Direction

Constructs a default Direction object facing North.

Direction(int) - Constructor for class Direction

Constructs a Direction object.

Direction(String) - Constructor for class Direction

Constructs a Direction object.

draw(Locatable, Component, Graphics2D, Rectangle) - Method in class MinnowDisplay

Draw the given object.

draw(Minnow, Component, Graphics2D) - Method in class MinnowDisplay

Draws the given Minnow.

E

EAST - Static variable in class Direction

Environment - interface Environment.

AP® Computer Science Marine Biology Simulation:
Environment provides an interface for a two-dimensional, grid-like environment containing locatable objects.

environment() - Method in class Minnow

Returns this minnow's environment.

equals(Object) - Method in class Direction

Indicates whether some other Direction object is "equal to" this one.

equals(Object) - Method in class Location

Indicates whether some other Location object is "equal to" this one.

F

FULL_CIRCLE - Static variable in class Direction

Number of degrees in compass (will not be tested on the Advanced Placement exam).

G

getDirection(Location, Location) - Method in interface Environment

Returns the direction from one location to another.

getInstance() - Static method in class RandNumGenerator

Returns a random number generator.

getNeighbor(Location, Direction) - Method in interface Environment

Returns the adjacent neighbor (whether valid or invalid) of a location in the specified direction.

H

hashCode() - Method in class Direction

Generates a hash code for this direction (will not be tested on the Advanced Placement exam).

hashCode() - Method in class Location

Generates a hash code for this location (will not be tested on the Advanced Placement exam).

I

inDegrees() - Method in class Direction

Returns this direction value in degrees.

isEmpty(Location) - Method in interface Environment

Determines whether a specific location in this environment is empty.

isValid(Location) - Method in interface Environment

Verifies whether a location is valid in this environment.

L

Locatable - interface Locatable.

AP® Computer Science Marine Biology Simulation:
Locatable is an interface that guarantees that an object knows its location and returns it when the location method is called.

Location - class Location.

AP® Computer Science Marine Biology Simulation:
A Location object represents the row and column of a location in a two-dimensional grid.

location() - Method in interface Locatable

Returns the location of this object.

location() - Method in class Minnow

Returns this minnow's location.

Location(int, int) - Constructor for class Location

Constructs a Location object.

M

main(String[]) - Static method in class MinnowApp

Starts the Minnow program.

Minnow - class Minnow.

Minnow Program:
The Minnow class represents a simple fish in an environment.

Minnow(Environment, Location) - Constructor for class Minnow

Constructs a minnow at the specified location in a given environment.

MinnowApp - class MinnowApp.

Minnow Program:
The MinnowApp class provides a main method that creates a simulation of three minnows swimming in a small bounded environment.

MinnowApp() - Constructor for class MinnowApp

MinnowDisplay - class MinnowDisplay.

Minnow Program:
A MinnowDisplay draws a minnow.

MinnowDisplay() - Constructor for class MinnowDisplay

Constructs an object that knows how to draw minnows.

MinnowGUI - class MinnowGUI.

Minnow Program:
The MinnowGUI class provides a window in which to run and display the environment in the Minnow program.

MinnowGUI(String, Color, int, int, int) - Constructor for class MinnowGUI

Creates a new MinnowGUI with no menu bar.

N

neighborsOf(Location) - Method in interface Environment

Returns the adjacent neighbors of a specified location.

NORTH - Static variable in class Direction

NORTHEAST - Static variable in class Direction

NORTHWEST - Static variable in class Direction

numAdjacentNeighbors() - Method in interface Environment

Returns the number of adjacent neighbors around each cell.

numCellSides() - Method in interface Environment

Returns the number of sides around each cell.

numCols() - Method in interface Environment

Returns number of columns in this environment.

numObjects() - Method in interface Environment

Returns the number of objects in this environment.

numRows() - Method in interface Environment

Returns number of rows in this environment.

O

objectAt(Location) - Method in interface Environment

Returns the object at a specific location in this environment.

R

RandNumGenerator - class RandNumGenerator.

AP® Computer Science Marine Biology Simulation:
The RandNumGenerator class provides a singleton java.util.Random object for random number generation.

RandNumGenerator() - Constructor for class RandNumGenerator

randomDirection() - Static method in class Direction

Returns a random direction.

randomDirection() - Method in interface Environment

Generates a random direction.

recordMove(Locatable, Location) - Method in interface Environment

Updates this environment to reflect the fact that an object moved.

remove(Locatable) - Method in interface Environment

Removes the object from this environment.

reverse() - Method in class Direction

Returns the direction that is the reverse of this Direction object.

roundedDir(int, Direction) - Method in class Direction

Rounds this direction to the nearest "cardinal" direction (will not be tested on the Advanced Placement exam).
The choice of possible cardinal directions depends on the number of cardinal directions and the starting direction.

row() - Method in class Location

Returns the row coordinate of this location.

S

setEnv(Environment) - Method in class MinnowGUI

Sets the Environment being displayed.

Simulation - class Simulation.

AP® Computer Science Marine Biology Simulation:
A Simulation object controls a simulation of fish movement in an Environment.

Simulation(Environment, EnvDisplay) - Constructor for class Simulation

Constructs a Simulation object for a particular environment.

SOUTH - Static variable in class Direction

SOUTHEAST - Static variable in class Direction

SOUTHWEST - Static variable in class Direction

step() - Method in class Simulation

Runs through a single step of this simulation.

T

toLeft() - Method in class Direction

Returns the direction that is a quarter turn to the left of this Direction object.

toLeft(int) - Method in class Direction

Returns the direction that is deg degrees to the left of this Direction object.

toRight() - Method in class Direction

Returns the direction that is a quarter turn to the right of this Direction object.

toRight(int) - Method in class Direction

Returns the direction that is deg degrees to the right of this Direction object.

toString() - Method in class Direction

Represents this direction as a string.

toString() - Method in class Location

Represents this location as a string.

toString() - Method in class Minnow

Returns a string representing key information about this minnow.

W

WEST - Static variable in class Direction

A C D E F G H I L M N O R S T W