public static void setChar (@Nonnull final CharSequence aSeq, final int nIndex, @Nonnull final Codepoint aCodepoint)
  {
    setChar (aSeq, nIndex, aCodepoint.getValue ());
  }
public static void setChar ( @ Nonnull final CharSequence aSeq , final int nIndex , @ Nonnull final Codepoint aCodepoint ) { setChar ( aSeq , nIndex , aCodepoint . getValue ( ) ) ; }
Set the character at a given location, automatically dealing with surrogate
pairs

@param aSeq
source sequence
@param nIndex
index
@param aCodepoint
codepoint to be set