Formatting IP:Port string to

Question

I\'m trying to make a little chat program for experimentation, but seeing as I\'m not the best Java programmer, I don\'t know how to separate a port from an IP where they are bo

Answer 1

String s = "127.0.0.1:999";
String[] parts = s.split(":");
String address = parts[0];
int port = Integer.parseInt(parts[1]);

In this case, address will be "127.0.0.1" and port will be the int 999.

Note that Integer.parseInt will throw a NumberFormatException in this case if the portion of the string after the : cannot be parsed as an integer, as in "127.0.0.1:blahblah". As well, if the string does not contain a : there will be no parts[1].