CODEWITHSUNDEEP
javajtable
BEE
BEE

Reputation: 107

Adding new row of data to a jTable with a Button Click

I am trying to add data read in from a form into a jTable. So far this is what I have and Im not sure why it will not work. This is the code:

    public void fillTable(){
        String inputField1 = jTextArea1.getText();
        String inputField2 = jTextField8.getText();
        String inputField3 = jComboBox1.getSelectedItem().toString();
        String inputField4 = jTextField11.getText(); 
        DefaultTableModel model = (DefaultTableModel) jTable2.getModel();
        int numRows = jTable2.getRowCount();
        for (int i = 0; i <= numRows; i++){
            model.setValueAt(inputField1, numRows, 1);
            model.setValueAt(inputField2, numRows, 2);
            model.setValueAt(inputField3, numRows, 4);
            model.setValueAt(inputField4, numRows, 6);      
        }
        jTable2.setModel(model);     
    }

The error I get is:

Exception in thread "AWT-EventQueue=0" java.lang.ClassCastException:  my.rcs.accounting.DraftInvoice$5 cannot be cast to groovy.model.DefaultTableModel

What am I doing wrong and how can I fix this?

Thank you!

Upvotes: 0

Views: 1137

Answers (2)

divelner
divelner

Reputation: 244

It's should be i instead of numRows.

for (int i = 0; i <= numRows; i++) {
      model.setValueAt(inputField1, i, 1);
      model.setValueAt(inputField2, i, 2);
      model.setValueAt(inputField3, i, 4);
      model.setValueAt(inputField4, i, 6);      
}

Upvotes: 2

Pelit Mamani
Pelit Mamani

Reputation: 2381

Could you locate the code that creates your jTable2? And also the exact import (=package name) you use for DefaultTableModel ?

I suspect the ClassCastException could come from this line: DefaultTableModel model = (DefaultTableModel) jTable2.getModel();

which begs two questions: 

1) what table model was initially associated with jTable2, it seems to be some inner class my.rcs.accounting.DraftInvoice$5 and the question is - does it inherit from DefaultTableModel

2) What DefaultTableModel are you expecting, naiively I'd expect it to be javax.swing.table.DefaultTableModel

Upvotes: 1

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