JTable test not working...

[asiavoices]

Hello everyone,

I was wondering why I'm getting this error when I try to set up my JTable? I'm just creating one to learn more about it.

Here's my code.......

/* ===================================
* Rong.java =
* =================================== */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.util.*;
import javax.swing.table.*;

public class Rong extends JFrame

{

............


public static void main(String[] args)
{

Rong myLayout = new Rong();

myLayout.setVisible(true);

} // End of void main() method


/* -------- constructor --------- */

public Rong()
{

final String[] colHeads = { "itemName", "itemPrice", "itemTax" };

Date currentDate = new Date();
Container contentpane = getContentPane();
contentpane.setLayout(new BorderLayout());

setSize(620,415);
setTitle("Rong" + currentDate.toString());
setBackground(new Color(204,255,204));


/* ---- Populate ArrayList (ie. MyStuff) ---*/

ArrayList myStuff = new ArrayList();

for (int idx=0; idx < 20; idx++)
{
Item cidx = new Item(Integer.toString(idx), 99.0d, false);
myStuff.add(cidx);
setTotal(getTotal() + 99.0d);
numrecords++;
}

Object ia[] = myStuff.toArray();

error here ---> JTable mytable = new JTable(ia, colHeads);


} // end of Rong constructor


} // end of Rong class



Here's the error message: ==================

Rong.java [94:1] cannot resolve symbol
symbol : constructor JTable (java.lang.Object[],java.lang.String[])
location: class javax.swing.JTable

JTable mytable = new JTable(ia, colHeads);
^
1 error
Errors compiling Rong.

This is straight forward isn't it?

Thanks,

Christopher

 

[cyli]

JTable takes a two-dimensional array of data, and a one-dimensional array of column names.

your ia is only a one-dimensional array.

 

[asiavoices]

Hello again cyli & everyone,

If this is the case, how could I load in my ArrayList (3 fields.) then into a JTable and then display them onto a panel?

...
Item cidx = new Item(Integer.toString(idx), 99.0d, false);
.....

Item is my class that contains 3 fields/variables.


thanks again,

Christopher