import java.sql.*;

class Employee
{
 public static void main(String args[])
 {
  Statement st;
  Connection con;
  try{
   System.out.println("正在连接数据库...");
   Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
   con=DriverManager.getConnection("jdbc:odbc:mydsn");
   System.out.println("已连接到数据库");
   Statement stmt=con.createStatement();
   String query="select * from Employees";

   ResultSet rs=stmt.executeQuery("select * from Employees");
   while(rs.next())
   {
    String name=rs.getString("Address");
    System.out.println(name);
   }

   stmt.close();
   con.close();
  }
  catch (Exception em)
  {
   System.out.println("出现的异常为:"+em);
  }
 }
}

import java.net.*;

class InetAddressTest
{
 public static void main(String args[])
 {
  try
  {
   InetAddress add=InetAddress.getLocalHost();
   System.out.println("本地主机的IP地址是:"+add);

  }
  catch (UnknownHostException u){}
  
 }
}