🚀 go-pugleaf

Hi,
    Can anyone suggest me a method to use a special control character's
whose ASCII codes are  0x00 - 0x1F and 0x80 - 0xFF;  I have tried using
these with string classes.
as given in JBuilder Help.  I could not succeed with it.   Only few
characters work;
eg:   \u2295,  \u2297     (+ sign in a circle and  x sign in a circle).

I also have referred the foll. site;  I would like to use those symbols
too, if possible.

      http://charts.unicode.org/Unicode.charts/glyphless/U25A0.html

Actually, I have to show a "Sort Column" indicator in the column of a
Grid control.
As the user can sort a column by clicking the Column header dynamically
in a Grid control it would be appropriate to indicate the currently
sorted column.  ( I would like to use the ASCII char '0x1E' & '0x1F'
(for Descending & Ascending respectively).
Does Java support limited unicode controls?It would be nice if anyone
could reply.

Thank u in Advance
Sunder Rajan