Jtable - getvalueAt() issue

Question

I want to know why my getvalueAt() is picking old data when Enter is pressed.
I tried all update and table change modules, but I couldn't get it working. I am making an Excel sheet-like structure in JTable, in which one row updates on change to another row.

public void setValueAt(Object aValue, int row, int column) {
        if(column == 2 || column == 3 || column == 4 || column == 5)
    {
        System.out.println("2 is: "+getValueAt(row, 2));
        System.out.println("3 is: "+getValueAt(row, 3));
        System.out.println("4 is: "+getValueAt(row, 4));
        long closingbalance = Long.parseLong(getValueAt(row,2).toString())
            + Long.parseLong(getValueAt(row,3).toString())
            - Long.parseLong(getValueAt(row,4).toString());
        System.out.println("closing: "+closingbalance);
        super.setValueAt(closingbalance,row, 6);
    }               
    super.setValueAt(aValue, row, column);
}

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score 1 · Answer 1 · edited May 23 '17 at 12:27

Verify that your CellEditor has concluded and that your TableModel is in a consistent state when you access other values. This example override's getValueAt() to derive the dependent cell's value. To avoid so much parsing, your TableModel should probably just contain instances of Long.

Assuming you really need to override setValueAt(), it's not clear what TableModel you're using. If you're extending DefaultTableModel, the super.setValueAt() implementation is appropriate; if you're extending AbstractTableModel, the super implementation is empty, and yours will need to fire the appropriate event.

score 1 · Accepted Answer · edited May 23 '17 at 12:27

1

I can't be able to answering your question on another forum, because a new forums version driving me crazy

there no reason parsing value from JTable,
JTable implemets all important data types
examples here or here
for better help edit your question with SSCCE

edited May 23 '17 at 12:27

Community

1
1

answered Mar 30 '12 at 07:28

mKorbel

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+1 for the [default renderer/editor](http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#editrender) data types. – trashgod Mar 31 '12 at 01:08

Jtable - getvalueAt() issue

2 Answers2