try {
                ArrayList ar=new ArrayList();
                PRIvariable pri=new PRIvariable();

         BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream("C:/cdr2.csv")));


             while (reader.ready()) {
                 String line = reader.readLine();
                 String[] values = line.split(",");
                 pri.dateText=values[2]+"    "+values[4];
                 pri.count=pri.count+1;
                 pri.sum = pri.sum+Integer.parseInt(values[7]);                
 System.out.println(pri.dateText+"  "+pri.sum+" "+pri.count);
 ar.add(pri);
             }

            String[] columnNames={"Date","TOTAL","COUNTS"};
            String[][] cells=new String[ar.size()][3];
            for(int i=0;i<ar.size();i++){
                cells[i][0]=((PRIvariable)ar.get(i)).dateText;
                cells[i][1]=""+((PRIvariable)ar.get(i)).sum;
                cells[i][2]=""+((PRIvariable)ar.get(i)).count;
            }
            table = new JTable(cells,columnNames);
            table.setSize(400,400);
            table.setVisible(true);
            JScrollPane js=new JScrollPane();
            js.setViewportView(table);
            js.setSize(400,400);
            js.setVisible(true);
            add(js,java.awt.BorderLayout.CENTER);

         } catch (Exception e) {
             System.out.println(e);
         }

This is my code. Here i want to Read text file and put that data to Jtable. But in this code it shows every row of the Jtable filled with same data that contain in arraylist(ar) last row. ( i think there is problem in my arraylist). How can i solve this......