yelena base conversion

/**
 * Write a description of class BaseConversion here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class BaseConversion
{
    public static void main()
    {
        //Number: 89 Base: 2 ---> should convert to 1011001
        //Number: 347 Base: 5 ---> should convert to 2342
        //Number: 3289 Base: 8 ---> should convert to 6331

        System.out.println(convert(89, 2));
        System.out.println(convert(347, 5));
        System.out.println(convert(3289, 8));
        System.out.println(biggerConvert(1000, 16));
    }

    public static String convert(int num, int base)
    {
        int remainder = num%base;
        int quotient = num/base;

        if(quotient == 0)
            return "" + remainder;
        else
            return convert(quotient, base) + remainder;
    }

    public static String biggerConvert(int num, int base)
    {
        int remainder = num%base;
        int quotient = num/base;

        if(quotient == 0){
            if (remainder <= 9){
                return "" + remainder;
            } else if (remainder > 9) {
                return "" + (char)('A' + remainder - 10);
            }
        }else{
            if (remainder <= 9){
                return biggerConvert(quotient, base) + remainder;
            } else if (remainder > 9) {
                return biggerConvert(quotient, base) + (char)('A' + remainder - 10);
            }
        }
        return "ERROR";
    }
}