Marker Interface is an interface in which there are no members. i.e we don't define any methods or data members inside the marker interface. It is also called tag interface. A very obvious question ...

Marker Interfaces or Null interface in Java are special type of interfaces in character as they have no methods declared in them which means that if any classes implementing these interfaces don't ...

If you need to know if a piece of code has already been executed by another process, then this is the perfect library for you. A checkpoint is a class and method marker, and it is used when you want a ...