Abstract methods are used when defining a) interface classes b) derived classes c) classes that have no constructor d) arrays e) classes that have no methods

3. (10) Given below is the CRC diagram for a Circle ADT. Give the class definition and function definitions for this ADT. Circle - int r // radius // Constructors + Circle( int ) // Mutator + void setR( int) II Accessors + int getR( ) + int area( )

Question 52 Python is not great at Information Hiding because it doesn't allow creating data attributes for an instance from outside class definition allows access to data from outside class definition it doesn't allows access to data from outside class definition it doesn't allow write to data from outside class definition

Overview Construct a hierarchy of classes representing savings and checking accounts as well as a means to ‘filter’ account objects. Account Classes Your solution will consist of 4 account classes as described below. It is your responsibility to define the exact relationship among those classes and translate that relationship into source code structure. There is a correct structure; the skeleton must be modified to reflect the correct relationships.  Account – represents a general account with basic operations such as deposit, withdraw, etc.  Savings – represents a savings account that must maintain a minimum balance.  Checking – represents a checking account that has no minimum balance (this means a zero balance).  CappedChecking – represents a checking account that disallows a balance above a particular maximum value. Linking Accounts A bank or credit typically allows a user the ability to link accounts together. That is, I might wish to link my checking account with my savings…