Java Utililty Methods IP Address Get

for (final Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces(); interfaces
        .hasMoreElements();) {
    final NetworkInterface cur = interfaces.nextElement();
    if (cur.isLoopback()) {
        continue;
    for (final InterfaceAddress addr : cur.getInterfaceAddresses()) {
        final InetAddress inet_addr = addr.getAddress();
...

String hostAddr = "";
try {
    Enumeration<NetworkInterface> nienum = NetworkInterface.getNetworkInterfaces();
    while (nienum.hasMoreElements()) {
        NetworkInterface ni = nienum.nextElement();
        Enumeration<InetAddress> kk = ni.getInetAddresses();
        while (kk.hasMoreElements()) {
            InetAddress inetAddress = kk.nextElement();
...

List<InetAddress> result = new ArrayList<>();
for (Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces(); e.hasMoreElements();) {
    NetworkInterface nif = e.nextElement();
    for (Enumeration<InetAddress> en = nif.getInetAddresses(); en.hasMoreElements();) {
        InetAddress addr = en.nextElement();
        if (ipv4only && !(addr instanceof Inet4Address))
            continue;
        result.add(addr);
...

String ip = "";
InetAddress inetAddress;
try {
    inetAddress = InetAddress.getByName("localhost");
    ip = inetAddress.getHostAddress();
} catch (UnknownHostException e) {
    throw new RuntimeException("Is your network broken; localhost does not exist?", e);
return ip;

String regex = "[\\d]+.[\\d]+.[\\d]+.[\\d]+";
Enumeration<?> e = null;
try {
    e = NetworkInterface.getNetworkInterfaces();
} catch (SocketException e1) {
    e1.printStackTrace();
while (e.hasMoreElements()) {
...

String result;
if (m_IP == null) {
    try {
        result = InetAddress.getLocalHost().getHostAddress();
    } catch (Exception e) {
        result = getIPFromNetworkInterface();
    m_IP = result;
...

try {
    for (final Enumeration<NetworkInterface> interfaces = NetworkInterface
            .getNetworkInterfaces(); interfaces.hasMoreElements();) {
        final NetworkInterface cur = interfaces.nextElement();
        if (cur.isLoopback()) {
            continue;
        if (cur.getName().startsWith("vnic")) {
...

String ipAddr = "";
try {
    InetAddress inetAddr = InetAddress.getLocalHost();
    byte[] addr = inetAddr.getAddress();
    for (int i = 0; i < addr.length; i++) {
        if (i > 0) {
            ipAddr += ".";
        ipAddr += addr[i] & 0xFF;
} catch (Exception e) {
    e.printStackTrace();
return ipAddr;

if (localHostIps.equals("")) {
    StringBuffer sb = new StringBuffer();
    InetAddress[] ias;
    try {
        ias = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName());
        for (int i = 0; i < ias.length; i++) {
            String ip = ias[i].getHostAddress();
            sb.append(ip);
...

StringBuffer sb = new StringBuffer();
final char flag = 2;
try {
    Enumeration<?> netInterfaces = NetworkInterface.getNetworkInterfaces();
    while (netInterfaces.hasMoreElements()) {
        NetworkInterface ni = (NetworkInterface) netInterfaces.nextElement();
        Enumeration<InetAddress> ips = ni.getInetAddresses();
        while (ips.hasMoreElements()) {
...