Class: CFRatingChange.java

Description: Rating change of an specific user

Returns	Method	Description
	`CFRatingChange(JSONObject ob)`	`constructor` constructs object on the basis of the informations from `ob`
`int`	`getContestId()`	returns contest id
`String`	`getContestName()`	returns contest name
`String`	`getHandle()`	returns user handle
`int`	`getRank()`	returns user rank in that contest
`long`	`getRatingUpdateTimeSeconds()`	Time, when rating for the contest was update, in unix-format.
`int`	`getOldRating()`	Old rating (rating before changes)
`int`	`getNewRating()`	New rating (rating after changes)
`String`	toString()	Returns basic informations in String format

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