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java get local ip

Yeonfish answered on June 15, 2022 Popularity 3/10 Helpfulness 1/10

answer java get local ip

related java get ip address

java get local ip

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import java.io.*;
import java.net.*;
import java.util.Enumeration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

class Main() {
    public static void main(String args[]) throws IOException {
        Matcher match;
        while (true) {
            Process traceRt;
            if (System.getProperty("os.name").toLowerCase().contains("win"))
                traceRt = Runtime.getRuntime().exec("tracert 8.8.8.8");
            else traceRt = Runtime.getRuntime().exec("traceroute 8.8.8.8");
            BufferedReader br = new BufferedReader(new InputStreamReader(traceRt.getInputStream()));

            String ips = br.readLine();

            match = Pattern.compile("(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)", Pattern.MULTILINE).matcher(ips);
            if (match.find()) break;
        }
        String myip = match.group();
        NetworkInterface networkInterface = null;
        Enumeration Interfaces = NetworkInterface.getNetworkInterfaces();
        while (Interfaces.hasMoreElements() && networkInterface == null) {
            NetworkInterface Interface = (NetworkInterface) Interfaces.nextElement();
            Enumeration Addresses = Interface.getInetAddresses();
            while (Addresses.hasMoreElements()) {
                InetAddress Address = (InetAddress) Addresses.nextElement();
                if (Address.getHostAddress().startsWith(myip.split("\\.")[0])) {
                    networkInterface = Interface;
                    break;
                }
            }
        }
        assert networkInterface != null;
        short subnetMask = networkInterface.getInterfaceAddresses().get(1).getNetworkPrefixLength();
        byte[] addr = networkInterface.getInterfaceAddresses().get(1).getAddress().getAddress();
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: get ip java local

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Contributed on Jun 29 2024

Yeonfish

0 Answers Avg Quality 2/10

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java get ip address

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import java.awt.*;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;

class Main
{
  public static void main(String args[]) throws IOException
  {
    InetAddress ip;
	String hostname;
	ip = InetAddress.getLocalHost();
	hostname = ip.getHostName();
    System.out.println("Current IP address : " + ip + "\n" +
                "current Hostname : " + hostname);
  }
}

Popularity 9/10 Helpfulness 6/10 Language java

Source: Grepper

Tags: get

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Contributed on Jun 15 2022

Shept

0 Answers Avg Quality 2/10

java get local ip

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java get local ip

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