Steps
- Go to transaction code SE24.
- The initial screen of Class Builder looks like this.
- Enter the Object Type (class name ), start's with YCL_ or ZCL_ <class name >, and click on create button.
- Enter the short description and click on the SAVE button.
- Save it in either Package or Local Package.
- Class Interface looks like this.
- Click on the attributes Tab,
- Enter the attribute name.
- Click on Level and press F4 help.
- Select the Level ( instance ) of the attribute.
- Click on Visibility and press F4 help.
- Select the Visibility of the attribute.
- Enter the Associated type( data type ).
- Enter the Description.
- Enter the initial value ( optional ).
- Note: N1 is known as the Instance Public attribute.
- To Add a static public attribute follow the following steps.
- Enter attribute name.
- Click on Level and press F4 help.
- Select static attribute.
- Click on Visibility and press F4 help.
- Select the visibility.
- Enter the Associated Type.
- Enter the description.
- Enter the initial value.
- Similarly, create different attributes as shown below as per Level and Visibility.
- Note :
- N3 is known as instance protected.
- N4 is known as static protected.
- N5 is known as instance private.
- N6 is known as static private.
- Save -> Check -> Activate.
Usage of Global Class.
- Go to transaction code SE38.
- Enter the program name start's with Y or Z<program name > and click on create button.
- Enter the Title, select attribute type as an executable program, and click on Save.
- To declare the object.
DATA : <object name > Type <Class name >.
- Ex : obj type ZCL_FIRST_CLASS.
- To create the object.
CREATE OBJECT < object name> .
- Ex: Create object OBJ.
- We can call instance attributes using ,
<object name >-><attribute name>.
- We can call static attribute using,
<object name >-><attribute name>.
or
<Class name >=><attribute name>.
- Save -> Check->Activate.
- Execute.
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