MassObject

public class MassObject
extends java.lang.Object

Constructors
Constructor and Description
`MassObject()`
`MassObject(double friction)`
`MassObject(double friction, double size)`

Methods
Modifier and Type	Method and Description
`double`	`getDisplacement(double force)`
`double`	`getYPosition()` return the virtical pixel location of the top of this mass
`void`	`setYPosition(double newPos)` specify the virtical pixel location for the top of this mass

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

public MassObject(double friction,
          double size)

Class MassObject