Swing with Many static variable and method

[Leonardo Carreira]

Hi Friends..

i have a question..
do i have to use many static variable or method in Swing/Swt/Awt application?..
example i have method like this instance : (which would be accessed from another JDialog)

   
public static void doSearch(){}
public static void showAllData(){} 

do i have to use static variable also?..
assume that, i have 2 JDialog, which named JDialog1 and JDialog2..
JDialog2 would be opened by click a button on JDialog1..
and in JDialog2 has JTable.. when user double click row in JTable, then the values would be sent to JTextField in JDialog1..
so i provide static JTextfield..
and the code like this example :

if (evt.getClickCount() == 2){
            int col = jTable.getSelectedColumn();  
            int row = jTable.getSelectedRow();   
            JDialog1.txtSupplierCode.setText((String) jTable.getModel().getValueAt(row, 1));
            JDialog1.txtBuyingsCode((String) jTable.getModel().getValueAt(row, 2));
            JDialog1.doSearch();
            JDialog1.showAllData();
            dispose();
}    

what i have done is true or not?

Correct me if iam wrong..
Thanks in advance ..

[Rob Spoor]

I definitely would not do that. Instead, make the methods regular instance methods (so non-static), and provide the second JDialog a reference to the first JDialog. You can then use this reference to call the methods.

[Leonardo Carreira]

Thanks sir for your reply..

but iam still confused...
may you give me an example?..

Thanks in advance..

[Rob Spoor]

The new JDialog class gets a reference field to class JDialog1, which you set in the constructor:

public class JDialog2 extends JDialog
{
    private JDialog1 dialog1;
    public JDialog2(JDialog1 owner)
    {
        super(owner, "title", true); // or false for non-modal
        dialog1 = owner;
    }

    ...
}

Created from a JDialog1 instance:

JDialog2 dialog2 = new JDialog2(this);
// pack, center, etc
dialog2.setVisible(true);

Your code then simply calls dialog1.xxx instead of JDialog1.xxx - using the new private field instead of static calls.

[Leonardo Carreira]

Yap..
it could ran well now..

how about if there are 3 JDialogs or more..
how to share that JDialog?..

i want to use only one JDialog so i have to share JDialog2, which would be accessed in another JDialog.. (actually we could create another JDialog which has contents like JDialog2, but i wouldn't create like that, it would magnify the Jar file which would be created)

example..
i have created JDialog2 to show all of the Products data..
then, that JDialog2 would be accessed in PurchasingDialog, or TradingDialog..
i want to distinguish whether the JDialog2 called by PurchasingDialog or TradingDialog..

is it possible?

Thanks in advance sir..