IpCutter3.java

import java.util.StringTokenizer;
import java.util.NoSuchElementException;
public class IpCutter3 {
public static void main (String[]args) {
StringTokenizer Q = new StringTokenizer(args[0]);
String[]k=new String[4];
try {
for (int i=0;i<4;i++)
k[i]=Q.nextToken(".");
}
catch (NoSuchElementException ex ) {
System.out.println("Error : You have entered an invalid IP address"); 
System.exit(0); }
for (int i=0;i<4;i++)
System.out.println(k[i]);
}
}