ping program

ping program

my program will ping upto 192.168.100.59. and i want to insert that particular inforamtion into my oracle db.and i want to update it in my network. here my question is:my prog inserting only one ipadress into my db but i want every ip info into my db.so can u pls help me out. code: import java.io.*; import java.sql.*; import java.util.*; public class nmap { public static void main(String[] args) { new nmap_thread("192.168.100").start(); /*new nmap_thread("192.168.110").start(); new nmap_thread("192.168.120").start(); new nmap_thread("192.168.130").start(); new nmap_thread("192.168.140").start(); new nmap_thread("192.168.150").start(); new nmap_thread("192.168.160").start(); new nmap_thread("192.168.180").start();*/ } } class nmap_thread extends Thread { Connection con=null; PreparedStatement st=null; public nmap_thread(String s) { super(s); } public void run() { try{ Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); con=DriverManager.getConnection("jdbc:odbc:oradsn","system","1212"); //st=con.createStatement(); }catch(Exception e){} String s1=getName(); String ip_mac = ""; lp1:for(int i=50;i<60;i++) { ip_mac = s1+"."+i;

    try
    {
    Process p = Runtime.getRuntime().exec("ping  "+ip_mac,null);
                BufferedReader br = new BufferedReader (new InputStreamReader(p.getInputStream())); 
                String line = null;
                int flag =0;

  while((line = br.readLine()) != null )  
     {
       //output.write(line);
      // System.out.println(line);
       if((line.indexOf("Reply from")> -1) && (flag == 0))
         {
         /*st=con.prepareStatement("insert into sun1 values(?,'on')");
         int k=st.executeUpdate();
         st.setString(1,ip_mac);*/
         //st.setString(2,'on');

           System.out.println("System  "+ip_mac+" up");
           flag ++;

         }


     } 
     if(flag == 0)
        {
        System.out.println("System"+ip_mac+" down");

        }
        //output.close();
        int exitVal = p.waitFor();
        StringTokenizer str=new StringTokenizer(ip_mac);
        String o1;
        while(str.hasMoreTokens())
        {
        Object o=str.nextToken();
        o1=o.toString();
        }

st=con.prepareStatement("insert into sun1 values(?,'off')"); st.setString(1,o1); //for (int i1 = 0; i1 < 10; i1++) { //st.setInt(2, i1); int rowCount = st.executeUpdate();

//i=0;
  con.close();
  }
  catch(Exception e){}


        }

} }

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