Saving multiple records into text file

Question

Can I save multiple records into a text file at one go?
My application has a list of data displayed there and when the user clicks on the save button it will save all the records on the screen.
It works but it only saves the last record.
Here are my codes
// this is to display the list of data
private JLabel[] subjects=new JLabel[20];
private JLabel[] subTotal=new JLabel[20];
private JLabel[] codes=new JLabel[20];
private JLabel[] getTotal=new JLabel[20];
String moduleCodes;
String getPrice;
double price;
int noOfNotes;
public testapp(Subjects[] subList)
int j=0;
            double CalTotal=0;
          for (int i=0; i<subList.length; i++)
               subjects[i] = new JLabel();
               subTotal[i] = new JLabel();
               codes=new JLabel();
               getTotal[i]=new JLabel();
               if (subList[i].isSelected)
                    System.out.println(i+"is selected");
                    subjects[i].setText(subList[i].title);
                    subjects[i].setBounds(30, 140 + (j*30), 400, 40);
                    subTotal[i].setText("$"+subList[i].price);
                    subTotal[i].setBounds(430,140+(j*30),100,40);
                    codes[i].setText(subList[i].code);
                    getTotal[i].setText(subList[i].price+"");
                    CalTotal+=subList[i].price;
                    contain.add(subjects[i]);
                    contain.add(subTotal[i]);
                    j++;
                    moduleCodes=codes[i].getText();                              
                    getPrice=getTotal[i].getText();
                    noOfNotes=1;
// this is where the records are saved
     public void readRecords(String moduleCodes,String getPrice,int notes)throws IOException
          price=Double.parseDouble(getPrice);
          String outputFile = "testing.txt";
          FileOutputStream out = new FileOutputStream(outputFile, true);      
     PrintStream fileOutput = new PrintStream(out);
          SalesData[] sales=new SalesData[7];
          for(int i=0;i<sales.length ;i++)
               sales[i]=new SalesData(moduleCodes,price,notes);
               fileOutput.println(sales[i].getRecord());
          out.close();

Answer 1

I suggest writing a method that takes a SalesData[]
parameter and a filename. Example:
public void writeRecords(SalesData[] data,
String filename) throws IOException
BufferedWriter out = new BufferedWriter(new
FileWriter(filename, true));
for (int i = 0; i < data.length; i++)
out.write(data.getRecord());
out.newLine();
out.close();
And it's good to get in the habit of doing things like closing resources in finally blocks.