Subversion Repositories programming

public class IPAddr
{
    private int[] fields = new int[4];

    public IPAddr (String ip)
    {
        int i;
        String[] sp = ip.split("\\.");

        for (i=0; i<sp.length; i++)
            fields[i] = Integer.parseInt(sp[i]);
    }

    public int getField (int fieldNum)
    {
        return fields[fieldNum];
    }
 
    public int compareTo (IPAddr ip)
    {
        int i;

        for (i=0; i<4; i++)
            if (fields[i] < ip.getField(i))
                return -1;
            else if (fields[i] > ip.getField(i))
                return 1;

        return 0; // Equal
    }
    
    public int compareTo (String ip)
    {
        IPAddr that = new IPAddr (ip);

        return this.compareTo(that);
    }

    public String toString ()
    {
        String s = new String("" + fields[0] + '.' + fields[1] + '.'
                            + fields[2] + '.' + fields[3]);
        return s;
    }
}