Retreiving more than one object from an object stream using serialization.

Question

I have written a number of object into a file using the object Output stream. Each object was added separately with a button event. Now when I retrieve it only one object is being displayed. the others are not displayed The code for retrieval and inserting is given below. Please do help me.
code for inserting is as follows
Vehicle veh1 and vehicle class implements serializable
veh1.vehNum=tf1.getText();
          veh1.vehMake=tf2.getText();
          veh1.vehModel=tf3.getText();
          veh1.driveClass=tf4.getText();
          veh1.vehCapacity=tf5.getText();          
          FileOutputStream out = new FileOutputStream("vehicle.txt",true);
          ObjectOutputStream s = new ObjectOutputStream(out);
          s.writeObject(veh1);
retrieval
FileInputStream out = new FileInputStream("vehicle.txt");
          String str1,str2;
          str1=str2=" ";
          Vehicle veh=new Vehicle();
          ObjectInputStream s = new ObjectInputStream(out);
          try
          Vehicle veh1=(Vehicle)s.readObject();
          s.close();
          int i=0;
          str1=veh1.vehNum;
          str2+=str1+"\t";
          str1=veh1.vehMake;
          str2+=str1+"\t";
          str1=veh1.vehModel;
          str2+=str1+"\t";
          str1=veh1.driveClass;
          str2+=str1+"\t";
          str1=veh1.vehCapacity;
          str2+=str1+"\t\n";
          ta1.append(str2);
          catch(Exception e)
          e.printStackTrace();
Pleas give me the code for moving through the object until it reaches the end of file

Answer 1

You can read objects from the stream one by one. So, what you need is an endless loop like this:
// Suppose you have an ObjectInputStream called objIn
// So here is the loop which reads objects from the stream:
Object inObj;
while (1) {
    try {
        inObj=objIn.readObject();
        // Do something with the object we got
        parse_the_object(inObj);
    } catch (EOFException ex) {
        // The EOFException will be thrown when
        // we reached the end of the file, so here we break out
        // of our lovely infinite cycle
        break;
    } catch (Exception ex) {
        ex.printStackTrace();
        // Here you may decide what to do...
        // Probably the processing will end here, too. For now,
        // we moving on, hoping there is still something to read
objIn.close();
// ...