What is the abstract class in Dart?

To make a method abstract, use a semicolon (;) instead of the method body.

To make a method abstract, use a semicolon (;) instead of the method body.

The only difference is that the classes we’re using as interfaces don’t have the abstract keyword so one() and two() must have a body (it’s empty, but it’s still there).

The only difference is that the classes we’re using as interfaces don’t have the abstract keyword so one() and two() must have a body (it’s empty, but it’s still there).

An abstract class, which is similar to an interface, defines a class that cannot be instantiated . Abstract classes keep your code honest and type safe. It ensures that all implementation subclasses define all the properties and methods that abstract class defines, but leaves the implementation to each subclass.19 Tem 2020

An abstract class, which is similar to an interface, defines a class that cannot be instantiated . Abstract classes keep your code honest and type safe. It ensures that all implementation subclasses define all the properties and methods that abstract class defines, but leaves the implementation to each subclass.19 Tem 2020