[Java] class String, method split

got-anna

I use method split, or class StringTokenizer to split a string, but they work too badly when I use them many times in various my own method. Why? Plz, show me.

rid2000

Show your problem in example.

got-anna

Here, an example, that does not work with split:

public class TestSplitIP {

	public static void main(String[] args) {

		String request = "REJECT 172.16.12.100";

		String[] sip = request.split(" ");

		System.out.println(sip[0] + "-" + sip[1]);

		// result: REJECT-172.16.12.100

		IP ip = new IP(sip[1]);

		System.out.println(ip);

                // result: IP: 0.0.0.0

                // What shit is here?

	}

}

class IP {

	int[] ip = new int[4];

	public IP(String str) {

		System.out.println(str);

		// result: 172.16.12.100

		String[] sip = str.split(".");

		System.out.println("sip.length = " + sip.length);

		// result: sip.length = 0

		// ?

		for (int i = 0; i < sip.length; ++i) {

			ip[i] = Integer.parseInt(sip[i]);

		}

	}

	public String toString {

		String tmp = "";

		for (int i = 0; i < 4; ++i) {

			tmp = tmp + ip[i] + i == 3) ? "" : ".");

		}

		return "IP: " + tmp;

	}

}

ermsoft

 String[] sip = str.split("\\."); 

Кстати, почему квадратные скобки в теге CODE такие корявые?

got-anna

Hi, I'm using it wrong.
It's should be:

        String[] sip = str.split("[.]");