/* RichUtil.java

   Useful, generic routines.
   
   Rich Acuff <Rich@Dr-Amy.com>
   28-Sep-97
 */

public class RichUtil {

    /* Return a string form of i with commas between thousands. */
    public static String intToString (int i) {
        if (i < 0) {return "-" + _intToString (-i);}
        if (i == 0) {return "0";}
        return _intToString (i);
    }  
     
    private static String _intToString (int i) {
        if (i < 1000) {return Integer.toString (i);}
        int j = i % 1000;
        int k = i / 1000;
        String s = _intToString (k);
        if (j > 99) {return s + "," + j;}
        if (j > 9) {return s + ",0" + j;}
        if (j > 0) {return s + ",00" + j;}
        {return s + ",000";}
    }
    
    /* Return a string form of i with commas between thousands. */
    public static String longToString (long l) {
        if (l < 0) {return "-" + _longToString (-l);}
        if (l == 0) {return "0";}
        return _longToString (l);
    }  
     
    private static String _longToString (long l) {
        if (l < 1000) {return Long.toString (l);}
        long j = l % 1000;
        long k = l / 1000;
        String s = _longToString (k);
        if (j > 99) {return s + "," + j;}
        if (j > 9) {return s + ",0" + j;}
        if (j > 0) {return s + ",00" + j;}
        {return s + ",000";}
    }

}