Test 2 - SAP Certified Back-End Developer - OO & Core Programmin

What is an Abstract Class in ABAP Object-Oriented programming?

• A class that cannot be instantiated and is used as a base class

• A class that provides a complete implementation of all its methods

• A class designed only for data storage

• A class that can be instantiated but cannot have methods

In a subclass “subl” you want to redefine a component of a superclass “superl”. How do you achieve this?

• You add the clause REDEFINITION to the component in “subl”.

• You implement the redefined component for a second time in “superl”.

• You implement the redefined component in “subl”.

• You add the clause REDEFINITION to the component in “superl”.

A class “my_class” contains the public static method “my_method”. What is the correct code to call this method?

• my_class->my_method( ).

• my_class=>my_method().

• my_class=>my_method( ).

• my_class->my_method().

A functional method must have:

• No changing parameters

• Exactly one exporting parameter

• Exactly one returning parameter

• Exactly one importing parameter

Your class contains a public instance attribute attr. How could you ensure that its value can only be changed within the class?

• Leave it in the public section but use the READ-ONLY addition.

• Convert it into a constant.

• Make it a private attribute.

• Move it to a different local class.

For the assignment, gv_target = gv_source. Which of the following data declarations will always work without truncation or rounding?

• DATA gv_source TYPE string, to DATA gv_target TYPE c.

• DATA gv_source TYPE c. to DATA gv_target TYPE string.

• DATA gv_source TYPE d. to DATA gv_target TYPE string.

• DATA gv_source TYPE p LENGTH 8 DECIMALS 3. to DATA gv_target TYPE p LENGTH 16 DECIMALS 2.

In ABAP, what is the purpose of the 'Field-Symbols' keyword?

• To declare a constant

• To create a reference to a memory area

• To define a new data structure

• To initialize a global variable

Which of the following are valid sort operations for internal tables?

• 1. Sort a standard table using:

  SORT itab ASCENDING.

• 1. Sort a sorted table using:

  SORT itab BY fieldl ASCENDING field2 DESCENDING.
  

• 1. Sort a standard table using:

  SORT itab BY field1 field2.
  

• 1. Sort a standard table using:

  SORT itab.

• 1. Sort a sorted table using:

  SORT itab DESCENDING.