Kirkenes 10 day weather forecast, updated four times a day and shows the weather summary plus detailed sun, rain, snow, wind and temperature. The weather forecast extends out to 10 days showing information for morning, afternoon and overnight.
1 Abstract classes can extend other class and implement interfaces but interface can only extend other interfaces. 2  We can run an abstract class if it has main() method but we canât run an interface because they canât have main method implementation.
A class can extend one other class and implement any number of interfaces. An interface can extend any number of interfaces. When a class implements an interface it implements all of the methods declared in that interface. You can have variables and parameters of an interface type. method in Java that has a parameter of interface type is nearly the same as a function template in C++. A class that uses interfaces to type any variables or parameters behaves very similarly to a class template in C++. Just think of the interface names as if they were template arguments.