How to write the JTables Content into the CSV File.

Question

Hi Friends
I managed to write the Database records into the CSV Files. Now i would like to add the JTables contend into the CSV Files.
I just add the Code which Used to write the Database records into the CSV Files.
void exportApi()throws Exception
          try
               PrintWriter writing= new PrintWriter(new FileWriter("Report.csv"));
               System.out.println("Connected");
               stexport=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
               rsexport=stexport.executeQuery("Select * from IssuedBook ");
               ResultSetMetaData md = rsexport.getMetaData();
               int columns = md.getColumnCount();
               String fieldNames[]={"No","Name","Author","Date","Id","Issued","Return"};
               //write fields names
               String rec = "";
               for (int i=0; i < fieldNames.length; i++)
                    rec +='\"'+fieldNames[i]+'\"';
                    rec+=",";
               if (rec.endsWith(",")) rec=rec.substring(0, (rec.length()-1));
               writing.println(rec);
               //write values from result set to file
                rsexport.beforeFirst();
               while(rsexport.next())
                    rec = "";
                     for (int i=1; i < (columns+1); i++)
                         try
                                rec +="\""+rsexport.getString(i)+"\",";
                                rec +="\""+rsexport.getInt(i)+"\",";
                         catch(SQLException sqle)
                              // I would add this System.out.println("Exception in retrieval in for loop:\n"+sqle);
                     if (rec.endsWith(",")) rec=rec.substring(0,(rec.length()-1));
                    writing.println(rec);
               writing.close();
     }With this Same code how to Write the JTable content into the CSV Files.
Please tell me how to implement this.
Thank you for your Service
Jofin

Answer 1

Hi Friends
I just modified my code and tried according to your suggestion. But here it does not print the records inside CSV File. But when i use ResultSet it prints the Records inside the CSV. Now i want to Display only the JTable content.
I am posting my code here. Please run this code and find the Report.csv file in your current Directory. and please help me to come out of this Problem.
import javax.swing.*;
import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
public class Exporting extends JDialog implements ActionListener
     private JRadioButton rby,rbn,rbr,rbnore,rbnorest;
     private ButtonGroup bg;
     private JPanel exportpanel;
     private JButton btnExpots;
     FileReader reading=null;
     FileWriter writing=null;
     JTable table;
     JScrollPane scroll;
     public Exporting()throws Exception
          setSize(550,450);
          setTitle("Export Results");
          this.setLocation(100,100);
          String Heading[]={"BOOK ID","NAME","AUTHOR","PRICE"};
          String records[][]={{"B0201","JAVA PROGRAMING","JAMES","1234.00"},
                           {"B0202","SERVLET PROGRAMING","GOSLIN","1425.00"},
                           {"B0203","PHP DEVELOPMENT","SUNITHA","123"},
                           {"B0204","PRIAM","SELVI","1354"},
                           {"B0205","JAVA PROGRAMING","JAMES","1234.00"},
                           {"B0206","SERVLET PROGRAMING","GOSLIN","1425.00"},
                           {"B0207","PHP DEVELOPMENT","SUNITHA","123"},
                           {"B0208","PRIAM","SELVI","1354"}};
          btnExpots= new JButton("Export");
          btnExpots.addActionListener(this);
          btnExpots.setBounds(140,200,60,25);
          table = new JTable();
          scroll=new JScrollPane(table);
          ((DefaultTableModel)table.getModel()).setDataVector(records,Heading);
          System.out.println(table.getModel());
          exportpanel= new JPanel();
          exportpanel.add(btnExpots,BorderLayout.SOUTH);
          exportpanel.add(scroll);
          getContentPane().add(exportpanel);
          setVisible(true);
      public void actionPerformed(ActionEvent ae)
          Object obj=ae.getSource();
          try {
          PrintWriter writing= new PrintWriter(new FileWriter("Report.csv"));
          if(obj==btnExpots)
               for(int row=0;row<table.getRowCount();++row)
                         for(int col=0;col<table.getColumnCount();++col)
                              Object ob=table.getValueAt(row,col);
                              //exportApi(ob);
                              System.out.println(ob);
                              System.out.println("Connected");
                              String fieldNames[]={"BOOK ID","NAME","AUTHOR","PRICE"};
                              String rec = "";
                              for (int i=0; i <fieldNames.length; i++)
                                   rec +='\"'+fieldNames[i]+'\"';
                                   rec+=",";
                              if (rec.endsWith(",")) rec=rec.substring(0, (rec.length()-1));
                              writing.println(rec);
                              //write values from result set to file
                               rec +="\""+ob+"\",";     
                               if (rec.endsWith(",")) rec=rec.substring(0,(rec.length()-1));
                               writing.println(rec);
                               writing.close();
     catch(Exception ex)
          ex.printStackTrace();
     public static void main(String arg[]) throws Exception
          Exporting ex= new Exporting();
}Could anyone Please modify my code and help me out.
Thank you for your service
Cheers
Jofin