Android :: Select Max - Column - Returning Only Column Name

This has got me all confused! I'm trying to return the max value from a column in my database but the return value is always the name of the column.

The query I use:

private static final String SELECTMAX = "SELECT MAX(?) FROM " + TABLE_NAME ;

The (test) function to return the max value:

CODE:............

The column i'm querying is an INTEGER type but the result 's' is always the column name and not the desired value.