If you want to do a method search and it’s associated class with SAP or even search for attributes within a class simply use the repository info system transaction SE84. For example, maybe you know you want to use the method upload but you can’t remember which class it is part of!!!
First, execute SE84 and expand Repository Information System, then Class Library
Now double click on the details you want to search on such as Classes/Interfaces, Methods, Attributes, Events or Types. Then enter your details and press execute.
For example, what if you can remember there is a method called DOWNLOAD but you can’t remember which class it is in. Simply enter the method name and press execute.
You will then be presented with a list of methods and their associated classes