Write a java program to retrieve the records from a specified database by accepting input from keyboard?

import java.sql.*;
import java.io.*;
class SelectDataRun {
 public static void main(String[] args) {
   try {
    Class.forName("Sun.jdbc.odbc.JdbcOdbcDriver");
    System.out.println("DRIVERS LOADED...");
    Connection con = DriverManager.getConnection("jdbc:odbc:oradsn", "scott", "tiger");
    System.out.println("CONNECTION ESTABLISHED...");
    PreparedStatement ps = con.prepareStatement("select * from dept where deptno");
    DataInputStream dis = new DataInputStream(System.in);
    System.out.println("ENTER DEPARTMENT NUMBER : ");
    String s1 = dis.readLine();
    int dno = Integer.parseInt(s1);
    ps.setInt(1, dno);
    ResultSet rs = ps.executeQuery();
    while (rs.next()) {
     System.out.print(rs.getString(1) + " " + rs.getString(2) + " " + rs.getString(3));
    }
    con.close();
   } catch (Exception e) {
    e.printStackTrace();
   }
  } // main
}   // SelectDataRun