In an ABAP class, which components can you directly create from a program?

In an ABAP class, you can directly create public components from a program. Public components are accessible from outside the class, allowing them to be utilized by other programs, classes, or function modules. This visibility is crucial for enabling interaction with the class's functionality, making it important for those components that are intended to be accessed broadly.

Creating public components directly from a program facilitates the establishment of a clear interface for the class, enabling users to understand which methods and attributes are available for use. Since public components are designed for access by external entities, their creation from a program is integral to the class's usability.

Protected components, on the other hand, can only be accessed by the class itself and its subclasses, while private components are restricted to the defining class. This limited access means that neither of these categories can be directly created from a program intended for broader use. Therefore, the focus is on the ease of creating public components that foster interaction and collaboration in the ABAP environment.