Display Programs of a Development Class
Enter the name of an existing development class in the object list and choose Display. The system displays a hierarchical overview of all R/3 Repository objects belonging to the specified development class.
The screen below shows the development class SAB1 from ABAP training.

You now have several possibilities:
A dialog box appears (Development Objects).Choose the entry Program objects.On the subsequent dialog box (Program Objects) choose the entry Program. Enter a name according to the
The dialog box Create Program appears. From here, carry on as described in
Creating a new Program.The dialog box Create Program appears. Enter a name corresponding to the

Position the cursor on a program name and double-click or choose Display or Change.
This opens the ABAP Editor for the program and you can start