This is probably a very easy question but I'm going to give you the code first.
import java.util.Scanner;
public class help {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
System.out.print("Give: ");
String s = sc.next();
String[] parts = s.split(".");
System.out.println(parts.length);
}
}
Even if I give 192.168.1.1.1.1.1 or 1.2.3 or ... the parts.length will always be 0, can somebody please explain to me why and how I can let it be 4 if i enter 1.2.3.4?
You need s.split("\\.")
because the argument to split
is a regular expression. The .
character in a regular expression means "any character", and you need to escape it with the backslash to have it mean "dot".
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