udpscan.java

来自「ＵＤＰ编程例子．采用ＪＡＶＡ 网络编程．」· Java 代码 · 共 21 行

import java.net.*;
public class UDPScan
  { 
	  public static void main(String args[ ])
       {  
		  //int port;
		  for( int port=0;port<=65535;port++)
           { 
			  try
               { 
				  DatagramSocket server=new DatagramSocket(port);
                  server.close();
               } 
              catch(SocketException e)
               { 
				  System.out.println("The Port: "+port+" is in using.");
               }
           }
       }
  }