Java——IP和InetAddress

import java.net.InetAddress;
 
//=================================================
// File Name       :	InetAddress_demo
//------------------------------------------------------------------------------
// Author          :	Common
 
//主类
//Function        : 	InetAddress_demo
public class InetAddress_demo {
 
	public static void main(String[] args) throws Exception{
		// TODO 自动生成的方法存根
		InetAddress locAdd = null;			//声明InetAddress对象
		InetAddress remAdd = null;			//声明InetAddress对象
 
		locAdd = InetAddress.getLocalHost();		//得到本地的InetAddress对象
		remAdd = InetAddress.getByName("www.baidu.com");
 
		System.out.println("本机的IP地址："+locAdd.getHostAddress());
		System.out.println("远程的IP地址："+remAdd.getHostAddress());
		System.out.println("本机是否可达："+locAdd.isReachable(5000));
	}
 
}