Introduction

try {
    InetAddress addr = InetAddress.getByName("javaalmanac.com");
    byte[] ipAddr = addr.getAddress();

    // Convert to dot representation
    String ipAddrStr = "";
    for (int i=0; i<ipAddr.length; i++) {
        if (i > 0) {
            ipAddrStr += ".";
        }
        ipAddrStr += ipAddr[i]&0xFF;
    }
} catch (UnknownHostException e) {
}