You would use an interface if you needed a bunch of different classes to have some method (named the same but implemented differently in each) and you wanted to use them interchangeably. You would also use an interface if there was no data involved, only methods.
Read moreWhat is a difference between an interface and an abstract class?
Abstract class and interface both can’t be instantiated. But there are many differences between abstract class and interface that are given below. … Difference between abstract class and interface. Abstract classInterface3) Abstract class can have final, non-final, static and non-static variables.Interface has only static and final variables.Difference between Abstract class and Interface – Javatpoint www.javatpoint.com › difference-between-abstract-class-and-interface
Read moreWhat is difference interface and abstract class?
Difference between Abstract Class and Interface Abstract ClassInterfaceIt contains both declaration and definition part.It contains only a declaration part.Multiple inheritance is not achieved by abstract class.Multiple inheritance is achieved by interface.It contain constructor.It does not contain constructor.Difference between Abstract Class and Interface in C# – GeeksforGeeks www.geeksforgeeks.org › difference-between-abstract-class-and-interface-i…
Read moreWhich is faster interface or abstract class?
4. Method Resolution. The fourth difference between abstract class and interface in Java is that abstract classes are slightly faster than the interface because the interface involves a search before calling any overridden method in Java.
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