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Calculating IPs with the help of IP Subnet Mask (CIDR Notation )

//Library Required : commons-net-3.0.1.jar

package com.pukhraj.blog;

import org.apache.commons.net.util.SubnetUtils;

public class IPSubnetMask {

public static void main(String[] args) {

String subnet = "IP/SubnetMask";
SubnetUtils utils = new SubnetUtils(subnet);

String lowip = utils.getInfo().getLowAddress();
System.out.println("Low IP "+lowip);

String highip = utils.getInfo().getHighAddress();
System.out.println("High IP "+highip);

String[] addresses = utils.getInfo().getAllAddresses();

System.out.println("Total IPs : "+addresses.length);

System.out.println("isInRange : "+utils.getInfo().isInRange("IP"));

}

}