© { JSL }
56
·a class can implement many interfaces
wso can an interface
wso can a struct (boxing)
·no implements keyword
wnotation is positional
wbase class first, then base interfaces
class Violin
: Instrument
, IPluckable
, ITuneable
{
...
}
IPluckable
«
interface »
ITuneable
«
interface »
Violin
«
class »
Instrument
«
class »
