Text files into Object ArrayList

Question

I have another class reading line-for-line text file, send each line to a class object and that class splits the line into fields. An ArrayList holds the objects. No problem.
Then, an almost similar setup. This time, the file is clusters. A blank line separates the records. Here's the code:
* DBKlass.java
* from file.io
* a text file with blocks of data
* "records" are 3-10 lines of text separated by blank-line-return
* all lines read into an Arraylist<Klass> klasList
*  file.io also added the micron character to any blank lines
* pass a loaded ArrayList which is a long line-for-line storage
*  of my file I read in to a field formater DBKlass
* to make Objects of type Klass
package org.vcbrad.mainframe;
import java.util.ArrayList;
import javax.swing.JOptionPane;
public class DBKlass {
    ArrayList<Klass> klasList;  
    public DBKlass( ArrayList<String> al ) {
        if( al != null && al.size() >= 1 )
            loadDB(  al  );
        else
            JOptionPane.showMessageDialog(MainFrame.desktop,"File not found");      
    private void loadDB( final ArrayList<String> al ) {
        String fldSep = "\u00B5"; // unicode = ? micron
        int alSize = al.size();
klasList = new ArrayList<Klass>();
        for (int i = 0; i < alSize; i++) {
            if(al.get(i).equalsIgnoreCase(fldSep)) {
                String temp = al.get(     i+1        ) + "]";
                al.set(i+1,temp);
        String coursework = "";
        for (String s : al) {
            coursework += s;
        String[] courses = coursework.split(fldSep);
        for (int i = 0; i < courses.length; i++) {
            System.out.println(courses);
klasList.add( new Klass( courses[i] ) );
* System.out displays what I want
* Ex: LPE17]Koordination Hauswirt-schaftlicher Arbetisprocesse.
* pass that line to the new Klass( String rowrecord );
* and then ...
* Klass k = klasList.get(0) ... .get(1) ... .get(2) etc.
* ALL objects from klasList
* have the only the last record from my original text
My question: Am I defeating ArrayList with my look-ahead feature? I realize ArrayList is not synchronized. Or, do I need to write out to a new file, read it again to make my objects???
Message was edited by:
vcbrad
OK, after spending a lot of time with my original problem I went back and made a method call to the ArrayList<Klass> from outside this class. For whatever reason, jumping and/or manipulating the the internal Iterator of ArrayList won't let me make Objects. And, trying to manipulate Strings twice just makes the logic hard to untangle. So, it works now. Baffling because I have an identical class that does work line-for-line manipulating Strings before adding myObjects to ArrayList<myObject>

Answer 1

First of all: Take a deep breath, and feel your feet... Don't panic, and do not cross-post or re-post with more exclamation marks just to get some attention!
What kind of data are you going to process in your program? Probably images. Have a look at how images are handled in a Java program. How you read them, and how you display them. Then decide on the type of data you are going to keep in which data structure.
Figure out what you want to do.
Take a peak at some java example classes and programs.
Perhaps have a look at the java.awt.Image class. Just an idea...
Kind regards