insert values in new jtable from old one

[saiindu]

How to insert values from one jtable to another jtable using arraylist(tokenizer).

private void readPreviousValues() {
        String temps = null;
        StringTokenizer tokenizer;
        for (int i = 0; i < B.size(); i++) {
            tokenizer = new StringTokenizer(B.get(i).toString(), "%%");
            dm.setValueAt(tokenizer.nextToken(), i, 1);
            dm.setValueAt(tokenizer.nextToken(), i, 2);
            dm.setValueAt(tokenizer.nextToken(), i, 3);
            dm.setValueAt(tokenizer.nextToken(), i, 4);
            dm.setValueAt(tokenizer.nextToken(), i, 5);
            temps = tokenizer.nextToken().toString();
            if (temps.equalsIgnoreCase("--")) {
                dm.setValueAt("", i, 6);
            } else {
                dm.setValueAt(temps, i, 6);
            }
            temps = tokenizer.nextToken().toString();
            dm.setValueAt(temps, i, 7);
            temps = tokenizer.nextToken().toString();
            dm.setValueAt(temps, i, 8);
        }
    }
 

I'm using this code. But it doesnt works.. I want to print the values from one table to another. can anybody help?

[JosAH]

JTables use TableModels; why don't you fetch the data from the old model and
put it in the new model? There's no need for all that String juggling.

kind regards,

Jos

[saiindu]

Can u give an example for that sir, pls...

[JosAH]

Can u give an example for that sir, pls...

Why don't you read the API documentation of the JTable and TableModel classes?
Near the top of the JTable documentation is a link to a nice tutorial on the subject
with lots of examples.

kind regards,

Jos

[saiindu]

Actually i'm using the DefaultTableModel in my project. We are using arraylist for each forms to retrieve the data. What i need is to retrieve values given in jtable should be displayed in same table same form with different pages.

[JosAH]

Actually i'm using the DefaultTableModel in my project. We are using arraylist for each forms to retrieve the data. What i need is to retrieve values given in jtable should be displayed in same table same form with different pages.

Sorry, I don't understand what you mean here; what's wrong with a simple
getValueAt() from the old table and a setValueAt() to the new model? Or use
the addRow() or insertRow() methods on the new model.

kind regards,

Jos

[saiindu]

The form name is B. I'm trying to retrieve the values using
StringTokenizer tokenizer;
for (int i = 0; i < B.size(); i++) {
System.out.println(B.get(i));
}
I want to print this retrieved data in the same jtable overriding the old one. That is using paging.

[JosAH]

The form name is B. I'm trying to retrieve the values using
StringTokenizer tokenizer;
for (int i = 0; i < B.size(); i++) {
System.out.println(B.get(i));
}
I want to print this retrieved data in the same jtable overriding the old one. That is using paging.

What is the type of that B thing? btw, slowly by slowly your question is moving
towards your other question: pagination of result sets. JTables have not much to
do with that; if your offset in your source table is 'o' and your page size is 'p'
simply fill your JTable with rows [o, min(m, o+p)) where m is the total number of
records in your source table. Adjust o to o+p when you want to page forward in
your table and make it o-p to page back to the top; keep the result offset o in
the range [0, m)

If you're also dealing with SQL here note that there is no portable way to retrieve
records [o, o+p) from a table but most (if not all) SQL engines have proprietary
solutions for this inconvenience. RTFMs.

kind regards,

Jos