6 entity opportunity card 1

[pujiacheng]

No description provided.

[Winterequiem]

The variables in this class are not encapsulated (private, protected) and the variable names do not follow naming conventions (camel case) so moneychange should be moneyChange and cardname as cardName. Since ChanceCard and CommunityCard is inheriting from OpportunityCard, they have by default the variables of the parent constructor (moneyChange and cardName, these variables should be protected so they can be inherited) so there is no need to define those variables in the child classes. Call the parent constructor with super(cardName, moneyChange) and have the parent class have a constructor that takes in the two variable and assign them to the instance variables.