Hi All,
I have created an application that allows a user to select a diectory, where we parse the photos, and upload to a database.
The issue that I am having is that I have a button on the form found in the newJFrame.java class called upload that when pressed will call a method from a class that has be initalized in the photouploader.java class.
This class has the main function for the application. It is being used to initalize and instatiate all of my classes, such as:

 fileParser fp = new fileParser();       //create new fileparser
            fp.setFiles(matches);                   //send in all found files
            fp.setFilenames();                      //convert files to names

            NewJFrame JP = new NewJFrame();             //create new form
            JP.setVisible(true);             

            //update lists on the form
            JP.update_Upload_list(fp.getgoodFilenames());   
            JP.update_DNUpload_list(fp.getbadFilenames());

Attached to this post are 3 files.

Photouploader:

package photouploader;
import javax.swing.*;
import java.io.*;

/**
 *
 * @author 10339
 */
public class PhotoUploader{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
    JFileChooser j = new JFileChooser();
    j.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    int returnVal = j.showOpenDialog(null);


    if(returnVal == javax.swing.JFileChooser.APPROVE_OPTION){
        File dir = j.getSelectedFile();
        File[] matches = dir.listFiles(new FilenameFilter()
        {
            public boolean accept(File dir,String name)
            {

               return name.endsWith(".png")||name.endsWith(".jpg");
            }

        });


        if(matches.length==0){
            JOptionPane.showMessageDialog(null,"No picture files have been "
                    + "found.");
        }
        else{
            fileParser fp = new fileParser();       //create new fileparser
            fp.setFiles(matches);                   //send in all found files
            fp.setFilenames();                      //convert files to names

            NewJFrame JP = new NewJFrame();             //create new form
            JP.setVisible(true);             

            //update lists on the form
            JP.update_Upload_list(fp.getgoodFilenames());   
            JP.update_DNUpload_list(fp.getbadFilenames());

        }


    }
    else{
        JOptionPane.showMessageDialog(null,"you have not chosen "
                + "a valid directory");
    }
    }
}

NewJFrame

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package photouploader;
import javax.swing.*;
import java.util.*;
/**
 *
 * @author 10339
 */
public class NewJFrame extends javax.swing.JFrame {

    /**
     * Creates new form NewJFrame
     */
    public NewJFrame() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        Upload_Button = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        FilesToUpload = new javax.swing.JList();
        jScrollPane2 = new javax.swing.JScrollPane();
        DNUpload = new javax.swing.JList();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        Upload_Button.setText("Upload");
        Upload_Button.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                Upload_ButtonActionPerformed(evt);
            }
        });

        jScrollPane1.setViewportView(FilesToUpload);

        jScrollPane2.setViewportView(DNUpload);

        jLabel1.setText("Files to Upload");

        jLabel2.setText("Files that will not be uploaded");
        jLabel2.setToolTipText("");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                        .addComponent(Upload_Button)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 419, Short.MAX_VALUE)
                            .addComponent(jScrollPane2)))
                    .addComponent(jLabel1)
                    .addComponent(jLabel2))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(5, 5, 5)
                .addComponent(jLabel2)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(Upload_Button)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                        

    private void Upload_ButtonActionPerformed(java.awt.event.ActionEvent evt) {                                              
if(FilesToUpload.getModel().getSize()>0){

}
else{

}
    }                                             

    public void update_Upload_list(ArrayList goodfiles)
    {
        DefaultListModel model1 = new DefaultListModel();
        for(int i=0;i<goodfiles.size();i++){
            model1.addElement(goodfiles.get(i));
        }
        FilesToUpload.setModel(model1);

    }
    public void update_DNUpload_list(ArrayList badfiles)
    {
        DefaultListModel model1 = new DefaultListModel();
        for(int i=0;i<badfiles.size();i++){
            model1.addElement(badfiles.get(i));
        }
        DNUpload.setModel(model1);

    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new NewJFrame().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify                     
    private javax.swing.JList DNUpload;
    private javax.swing.JList FilesToUpload;
    private javax.swing.JButton Upload_Button;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    // End of variables declaration                   
}

and fileParser:

package photouploader;
import java.nio.*;
import java.io.*;
import java.nio.file.Files;
import java.util.*;
import javax.imageio.ImageIO;

/**
 * Compiles July 5th 2013
 * @author Shawn Corliss
 * Company: City of Lethbridge Fire Department
 * This is the fileParser Class
 */
public class fileParser {
    /*var Decleration*/
    private File dir;                                   //Directory
    private File [] allFiles;                           //Holds all files with D
    private ArrayList goodfilenames = new ArrayList();  //Filenames
    private ArrayList badfilenames = new ArrayList();   //Filenames
    private ArrayList goodfiles = new ArrayList();      //Files with Dir
    private ArrayList badfiles = new ArrayList();       //Files with Dir

    /*Accessor Methods*/
    public File getDir(){               
        return dir;                     //Reurun Direcotry
    }   
    public void setDir(File directory){
        dir=directory;                  //Set Directory
    }
    public File[] getFiles(){
        return allFiles;                //Return all Files in array 
    }
    public ArrayList getgoodFilenames(){
        return goodfilenames ;          //Return Arrylist of files >=39
    }
    public ArrayList getbadFilenames(){
        return badfilenames ;           //Return Arrylist of files <=40
    }
    /* This funcition gets all the files found in the matching process
     * The matches are then cloned.
     * The length is checked and if +39 then files are placed in bad arraylist 
     * if smaller then 40 then they are placed in the good file arraylist
     */
    public void setFiles(File [] matches){
        allFiles=matches.clone();
        for (int a=0;a<matches.length;a++){
            if(matches[a].toString().substring
                    (matches[a].toString().lastIndexOf("\\")+1
                    ).length()<40){
                goodfiles.add(matches[a]);
            }
            else{
                badfiles.add(matches[a]);
            }
        }
    }
    //calls setgood and setbad filename functions
    public void setFilenames(){
        setgoodFilenames();
        setbadFilenames();
    }

    /*This function will convert the file path into a file name
     * by parsing out the string to the right of the last found "\"
     * used to push good file names to the list box and for conversion to bytes.
     */

    public void setgoodFilenames(){
        for(int i=0;i<goodfiles.size();i++){ //for each item in the goodfiles
            goodfilenames.add(
                    goodfiles.get(i).toString().substring(
                    goodfiles.get(i).toString().lastIndexOf("\\")+1)
                            );
        }
    }

      /*This function will convert the file path into a file name
     * by parsing out the string to the right of the last found "\"
     * used to push bad file names to the list box.
     */
    public void setbadFilenames(){
        for(int i=0;i<badfiles.size();i++){ //for each item in the badfiles
            badfilenames.add(
                    badfiles.get(i).toString().substring(
                    badfiles.get(i).toString().lastIndexOf("\\")+1)
                    );
        }
    }
    public byte [] pictoByte(File fnew)
    {
        try{
            byte[] fileContent = Files.readAllBytes(fnew.toPath());
            return fileContent;
        }catch (Exception e){
            return null;
        }

    }
    public void uploadwithSql()
    {

    }
}

So again can some on please help me find a way to call fileParser.uploadwithSql(); from the NewJFrame upload button in the Photouploader.java class.

you'll need a reference through which you can access it.
my advice: re-work your code, start by the analysis, check the IS-A, HAS-A relationships and see whether it 'll work.

another thing you might think about: reduce the number of lines in your main method to the absolute minimum. it should kick-start your application, not contain a large part of it.

generating Swing code with NetBeans is easy btw, but don't forget to look into learning to write it yourself sooner or later, it'll be a lot easier to maintain than the generated code.

thanks stultuske.
I have reworked my code in the NewJFrame class to:

public class NewJFrame extends javax.swing.JFrame {

    fileParser runningFP;
    /**
     * Creates new form NewJFrame
     */
    public NewJFrame() {
        initComponents();
    }
        public NewJFrame(fileParser object) {
        initComponents();
        runningFP=object;

    }
        private void Upload_ButtonActionPerformed(java.awt.event.ActionEvent evt) {                                              
if(FilesToUpload.getModel().getSize()>0){
    runningFP.uploadwithSql();
}
else{

}
    }

I also completely agree that making my own NewJFrame class would be better...but when I did that it would not work. I need to take the time to dive into the Swing and figure out the required peices to making a JForm work.

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