DELETED RollingBall.java
TODO FIXED Ball.java
TODOs FIXED MovingBall.java
TODOs FIXED Point.java
TODOs FIXED RollingBallGame.java
TODOs FIXED Vector.java
TODOs FIXED Segment.java
UPDATED MovingBall.java

Added method toString
UPDATED Segment.java

Added method getLength
Finished method getReactionPower
UPDATED Point.java

Added method equals
CREATED SamePointException.java
UPDATED Segment.java

Modified Segment constructor by adding SamePointException
UPDATED RollingBallGame.java

Updated method play
UPDATED Vector.java

Updated constructor Vector
UPDATED Main.java

Updated test. it now catches exception.