When we assign the instance of the Subclass back to the instance of the Superclass, than it is called the “Narrow Casting”, because we are switching from a “More Specific view of an object” to “less specific view”. When we assign the instance of the Superclass to the Subclass, than it is called the Widening … Continue reading ABAP Casting: Narrow vs Widening Explained
This ‘?=’ denotes a widening cast operator. In widening cast we assign reference of superclass to reference of subclass. Suppose u have a superclass lcl_vehicle its reference is r_vehicle. abd you have its subclass lcl_car with reference r_car. r_car ?= r_vehicle. ‘?=’ denotes the WIDECASTING Operator in ABAP Object. The assignment of an object reference … Continue reading What does ‘?=’ means in CL_SALV_TABLE class
OBJECT ORIENTED PROGRAMMING TERMINOLOGIES in ABAP Below are some of the important concepts of OOPS ABAP:- What is a Class ? A class is a user defined data type with attributes, methods, events, user-defined types, interfaces etc. for a particular entity or business application What are Objects ? Objects are nothing but instances of classes, each object … Continue reading ABAP OBJECT ORIENTED INTRODUCTION
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