java获得本机的ip地址和主机名，java获得ip主机名,package cn.o

java获得本机的ip地址和主机名，java获得ip主机名,package cn.o

package cn.outofmemory.snippets.core;import java.net.InetAddress;import java.net.UnknownHostException;public class GetIPAddressAndHostnameFromLocalMachine {    public static void main(String[] args) {        try {            InetAddress inetAddr = InetAddress.getLocalHost();            byte[] addr = inetAddr.getAddress();            // Convert to dot representation            String ipAddr = "";            for (int i = 0; i < addr.length; i++) {                if (i > 0) {                    ipAddr += ".";                }                ipAddr += addr[i] & 0xFF;            }            String hostname = inetAddr.getHostName();            System.out.println("IP Address: " + ipAddr);            System.out.println("Hostname: " + hostname);        }        catch (UnknownHostException e) {            System.out.println("Host not found: " + e.getMessage());        }    }}