Thread: TableModel problem Java

Im developing a program that has a JTable in it. The JTable should display a checkbox per row, the file name and the file path.
The problem im having is Im new to java and im having a hard time understanding how to make custom table model. This is what i have so far. Excuse me for all the bad coding in it. Thank you

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 
package trialfiletablemodel;
 
import java.awt.BorderLayout;
import java.io.File;
import java.util.LinkedList;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
 
 
/**
 * String fileName,filePath;
 * @author rosado
 */
 
public class Main {
 
 
 
    public static void main(String[] args) {
    String fileName,filePath;
    File f = new File("//home//guest//rosado//NetBeansProjects//PriKL_Platform//TrialFileTableModel//src//trialfiletablemodel//TableModelTrial.txt");
    System.out.println(f.exists()); //checks if file exists
    JFrame frame = new JFrame("Table Test");
    TableData data = new TableData();
    fileName = data.getFileName(f);
    filePath = data.getFilePath(f);
 
    JTable table = new JTable(new FileTableModel());
    table.setValueAt(false, 0, 0);
    table.setValueAt(fileName, 0, 1);
    table.setValueAt(filePath, 0, 2);
 
 
    JScrollPane scrollpane = new JScrollPane(table);
    frame.getContentPane().add(scrollpane,BorderLayout.CENTER);
    frame.setSize(300,150);
    frame.setVisible(true);
 
    /*
    ArrayList <String> data = new ArrayList<String>();
    data.add(f.getAbsolutePath());
    data.add(f.getName());
    for(int x = 0; x<data.size();x++)
    {
        System.out.println(data.get(x));
    }
      */  
 
 
    }
}
class FileTableModel extends AbstractTableModel {
 
      public String[] columnNames = { "Selection", "File Name","File Path" };
 
      LinkedList <Object> tabledata = new LinkedList<Object>();
      public Class[]  columnTypes = {Boolean.class,String.class,String.class};
 
 
      //Constructor
       public FileTableModel(){
           super();
 
       }
 
  @Override
  public int getColumnCount() {
      return columnNames.length;
  }
    @Override
    public Class getColumnClass(int column){
         return (getValueAt(0, column).getClass());
    }
    @Override
  public String getColumnName(int column) {
    return columnNames[column];
  }
 
    @Override
  public int getRowCount() {
    return (tabledata.size());
  }
 
    @Override
  public Object getValueAt(int row, int col) {
        float index = (row/2);
 
        if ((index % 2) == 0)
            {
                index =(int) index;
            }
        else 
            index = (int) index +1;
 
 
     return tabledata.get((int) index);
 }
 
    @Override
  public void setValueAt(Object value, int row, int column) {
   /*   TableData d = new TableData();
      Boolean fs = false;
      String fn = d.getFileName(f);
      String fp = d.getFilePath(f);
      tabledata.addLast(fs);
      tabledata.addLast(fn);
      tabledata.addLast(fp);
     */ 
 
   }
 
    @Override
  public boolean isCellEditable(int row, int column) {
        if(column == 0){
            return false;
        }
        else {
            return(true);
        }
  }
 
}
 
class TableData {
    private Boolean selection;
    private String fileName;
    private String filePath;
 
    public TableData()
    {
 
    }
    public TableData(Boolean sel, String name,String path)
    {
        selection = sel;
        fileName = name;
        filePath = path;
    }
 
    public Boolean getSelection()
    {
        return selection;
    }
    public String getFileName(File f)
    {
        fileName = f.getName();
        return fileName;
    }
    public String getFilePath(File f)
    {
        filePath = f.getAbsolutePath();
        return filePath;
    }
 
    public void setSelection(Boolean sel)
    {
        selection = sel;
    }
 
    public void setFileName(String name)
    {
        fileName = name;
    }
 
    public void setFilePath(String path)
    {
        filePath = path;
    }
}

When posting code, make sure you use the highlight tags. I added them for you this time.

What's the actual problem? Where are you stuck? Did you read through this: How to Use Tables (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)

I don't really understand the logic in your table model- why are you using a linked list instead of a 2-dimensional array or List?

...I don't really know what that has to do with your problem.

Hint: Take a look at what your getRowCount() method is returning.