Kaar Tech SAP Abap Consultant Interview Questions, Process, and Tips

Greenfield is starting a new project from scratch, while brownfield is modifying an existing project.

• Greenfield implementation involves building a new system or project from the ground up.

• Brownfield implementation involves making changes or enhancements to an existing system or project.

• Greenfield projects are typically faster to implement as there are no existing constraints or legacy systems to consider.

• Brownfield pro...read more

Abstract class is a class that cannot be instantiated and is meant to be inherited by other classes.

• Cannot be instantiated on its own

• Can have abstract methods that must be implemented by child classes

• Used to define a common interface for a group of subclasses

Constructors are special methods used to initialize objects in a class.

• Constructors have the same name as the class and do not have a return type.

• They are called automatically when an object is created.

• Constructors can be used to set initial values for object attributes.

• They can also be used to perform any necessary setup tasks.

• Example: class Car { public Car() { // constructor code here } }

Fallback class is a class used as a backup when the original class is not available or fails.

• Fallback class is used in case the primary class is not found or fails to execute.

• It helps in maintaining system stability by providing an alternative solution.

• Fallback class can be defined in the configuration or code to handle exceptions.

Enhancement options in SAP ABAP allow for customizing standard SAP applications without modifying the original code.

• Enhancement spots: predefined enhancement points in standard SAP programs

• Explicit enhancements: adding custom code at specific points in standard SAP programs

• Implicit enhancements: adding custom code without modifying standard SAP programs

• BAdIs (Business Add-Ins): predefined interfaces for enhancing SAP a...read more