package javatemplate1;

import java.sql.*;

import java.sql.ResultSet; // for result set
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import static jdk.internal.org.objectweb.asm.util.Printer.TYPES;

public class JavaTemplate1 {
    // example of 
       public static void main(String[] args) {
        // TODO code application logic here
        System.out.println("main block executing ");
       Connection c = null; //manage copnnection
       Statement st = null;// query statement support
       ResultSet rs = null;// active connection database result
      // String dbURL = "jdbc:postgresql://localhost:5432/pgsdemo1";
      //String user = "postgres"; String pwd = "postgre_manas9";
       String dbURL = "jdbc:mysql://localhost/test?"; 
       String user = "Manas9"; String pwd = "Manas9237";
      // String sql1 = "select round (cfcal65.25), 2); " ;
       String sql1 = "{?=call  ctof(36.25)}" ;
       double d1 = 29.25; 
      // connecting to db
      try {
          // Connection>>statement >> Resultset >>
       c = DriverManager.getConnection(dbURL,user,pwd);
       CallableStatement stmt = c.prepareCall(sql1);
       stmt.registerOutParameter(1,Types.DOUBLE);
       rs = stmt.executeQuery();
       //st = c.createStatement(); 
       //rs = st.executeQuery(sql1);
       Process.loaddata(rs , 1);
      } catch (SQLException ex) { ex.getErrorCode();
            String message = ex.getMessage();  
            System.out.println(message); 
      } finally {
          System.out.println("going through final block"); 
            try {
                 if (st== null || st.isClosed()) {
                } else {
                  st.close();
              }
                if (c != null && !c.isClosed()) {
                    c.close(); }
            } catch (SQLException ex) { ex.getErrorCode();
                  ex.getMessage();              
            }
        }
      
      System.out.println("dis-Connected to  database successfully"); 
    } 
      
}
class Process {
       //
public static void loaddata(ResultSet x1 , int n2)
        throws SQLException
{ int size = 0; 
    while ( x1.next() ) 
         {
             size++; 
            for ( int i = 1; i <= n2; i++ )
                try {
          System.out.printf( "Centigrade 43.25 = " 
                  + x1.getObject( i ) + " Fahrenheit");
          } catch (SQLException ex) {
            Logger.getLogger(Process.class.getName()).
             log(Level.SEVERE, null, ex);
                }
            System.out.println();
         }
    //displayMap(list1); 
    System.out.println("processed rows :: "+ size);
}

}