ip java

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;

public class helloworld {

	public static void main(String[] args) throws UnknownHostException {
		
		InetAddress ip = InetAddress.getByAddress(new byte[]{10,1,1,1});
		System.out.println(ip);
		
		ip = InetAddress.getByAddress("www.sdut.edu.cn", new byte[]{10,1,1,1});
		System.out.println(ip);
		
		ip = InetAddress.getByName("www.qq.com");
		System.out.println(ip);
		
		ip = InetAddress.getLocalHost();
		System.out.println(ip);
		
		System.out.println(ip.getHostName());
		System.out.println(Arrays.toString(ip.getAddress()));
	}

}