I have a standard format csv file:
I need to use Java to do this: Take column names as the parameter to retrieve multiple columns and save them as a new file. For example, when the parameter is “ID,Name,Gender”, the expected new file is as follows:
=T(“d:result.csv”:T(“d:data.csv”,${arg_cols}))
T()function parses a file or writes data of a file to a new one, where we can specify column names; ${} treats a string as an expression to execute.
Read How to Call a SPL Script in Java to find how to integrate SPL into a Java application.
Source:https://stackoverflow.com/questions/69819686/how-to-extract-csv-columns-with-the-specific-header-names-and-output-to-a-new-fi
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