Shulou(Shulou.com)06/03 Report--

This article mainly explains "the example introduction of using split to decompose IP address in Java". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn "the use of split in Java to decompose IP address example introduction"!

A few days ago, when I was using split to decompose a string, I found "." This string cannot be decomposed, and the procedure is as follows:

Public static void main (String [] str) {

String ip = "59.39.158.107"

String [] ipstr = ip.split (".")

System.out.println (ipstr.length)

}

Later, I looked at the source code of String.split and found that split was decomposed by regularization, but "." It is a special character in regular, so you have to escape it with escape characters.

The source code of String.split is as follows:

Public string [] split (string regex, int limit) {

Return pattern.compile (regex) .split (this, limit)

}

The modified decomposing IP program is as follows:

Public static void main (String [] str) {

String ip = "59.39.158.107"

String [] ipstr = ip.split (".")

System.out.println (ipstr.length)

}

You can find that the string can be decomposed correctly after being added.

At this point, I believe you have a deeper understanding of the "introduction to the use of split to decompose IP addresses in Java". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.