Re: write read string data

bH <>
Tue, 20 Nov 2007 20:15:05 -0800 (PST)
On Nov 20, 11:09 pm, Roedy Green <>

On Tue, 20 Nov 2007 07:02:20 -0800 (PST), bH <>
wrote, quoted or indirectly quoted someone who said :

I am attempting to write data into a file and read it
back again.

You have to read back with the same technique you write out with.

e.g. write objects / read objects.
write binary / read binary
write encoded chars / read encoded chars

for sample code to do it various ways.

You might do it each way and examine the file with a hex viewer to
understand the different formats.
Roedy Green Canadian Mind Products
The Java Glossary

Hi All.

I am not sure, at this point, if this is what was expected.



public class Example4withIO {

  public static void main(String[] args) {
    Example4withIO example4withIO =
      new Example4withIO();
    GetData getData1 = new GetData();
  public Example4withIO() {
    System.out.println("inside Example4withIO");
    // final String[] names = {"First Name",
    // "Last Name", "Favorite Color",
    // "Favorite Number", "Vegetarian"};
    final Object[][] data = {
      {"Mark", "Andrews", "Red", new Integer(2),
      {"Tom", "Ball", "Blue", new Integer(99),
      {"Alan", "Chung", "Green", new Integer(838),
      {"Jeff", "Dinkins", "Turquois", new Integer(8),
      {"Amy", "Fowler", "Yellow", new Integer(3),
    try {
      FileOutputStream fileOut =
        new FileOutputStream("C:\\");
      ObjectOutputStream objOutStream =
        new ObjectOutputStream (fileOut);
    catch (IOException e)
      System.out.println("error getting data");

import javax.swing.*;

public class GetData extends JPanel {

  String tempStrng = new String();

  public GetData () {
    System.out.println("inside GetData");
    try {
      FileInputStream fileIn =
        new FileInputStream("C:\\");
      ObjectInputStream objInStream =
        new ObjectInputStream(fileIn);
      if(tempStrng!= null){
        System.out.println(tempStrng); //no data
    catch (Exception ee) {

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