How to set formulas in cells using Apache POI?

Question

I am currently using Apache POI for Java to set formulas in cells.

But after I run the program and open the Excel file that I created and processed, the cells with t

Answer 1

Apache POI does not support user-defined functions.

From the documentation:

Note that user-defined functions are not supported, and is not likely to done any time soon... at least, not till there is a VB implementation in Java!