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java.lang.Objectcom.collegeboard.gridworld.grid.UnboundedGrid<E>
public class UnboundedGrid<E>
Constructor Summary | |
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UnboundedGrid()
Constructs an empty grid |
Method Summary | |
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E |
get(Location loc)
Returns the object at a specific location in this grid |
ArrayList<Location> |
getOccupiedLocations()
Gets the locations in this grid that contain objects. |
boolean |
isValid(Location loc)
Checks whether a location is valid in this grid. |
int |
numCols()
Returns number of columns in this grid. |
int |
numRows()
Returns number of rows in this grid. |
E |
put(Location loc,
E obj)
Adds a new object to this grid. |
E |
remove(Location loc)
Removes an object from this grid. |
String |
toString()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public UnboundedGrid()
Method Detail |
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public int numRows()
Grid
numRows
in interface Grid<E>
public int numCols()
Grid
numCols
in interface Grid<E>
public boolean isValid(Location loc)
Grid
isValid
in interface Grid<E>
loc
- location to check (must not be null)
true
if loc
is valid in this grid;
false
otherwisepublic ArrayList<Location> getOccupiedLocations()
Grid
getOccupiedLocations
in interface Grid<E>
public E get(Location loc)
Grid
get
in interface Grid<E>
loc
- the location in which to look (must be valid)
loc
;
null
if loc
is emptypublic E put(Location loc, E obj)
Grid
put
in interface Grid<E>
loc
- the location at which to put the object (must be valid)obj
- the new object to be added (must not be null)
public E remove(Location loc)
Grid
remove
in interface Grid<E>
loc
- the location of the object that is to be removed (must be valid)
public String toString()
toString
in class Object
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