How does a type cast such as (BankAccount) x differ from a cast of number values such as (int)x?
In the context of interfaces, a cast is necessary to convert from an interface type to a class type.
If x refers to a a BankAccount that was implemented as a Measurable object, then casting that object back again to a BankAccount will work--if it doesn't, the program won't even compile.
If, on the other hand, x refers simply to a floating point number that we want to convert (cast) to an int, it will work, although we implicitly agree that it's okay for us to lose some information along the way
(the fractional part of the number in this case).
How does a type cast such as (BankAccount) x differ from a cast of number values...
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