Dear Experts

Q.No.1, What is meaning of following line?
Textbox::GotFocus()

Q.No.2, What is difference between Nodefault and Dodefult?

Q.No.3,When the following command is used?
_VFP.AutoYield=.f.

Q.No.4, What is difference between following two command
SET CLASSLIB TO myclslib
SET CLASSLIB TO myclslib ADDITIVE

Q.No.5, What is difference among Locate,seek and scan?
Please give some examples to find specific data from a dbf while using above three commands.Suggest also what is better and faster.

Q.No.6, What is difference among local,public and private variables? Please also give some examples.

Wish you good Luck