populating jtable by using vector .

[newkid]

below is my code.
how do i implement adding rows dynamically to the jtable using vector. ( i know it is vector.addElement something... But what is the actual code ? )

Thanks


import java.util.Vector;
import java.sql.*;
import OraDB;
import javax.swing.*;
import javax.swing.table.AbstractTableModel;
//import javax.swing.event.TableModelEvent;
import java.awt.*;
import java.awt.event.*;

public class demotable extends JPanel {
JPanel subpanel = new JPanel();
JLabel lbTitle = new JLabel("Registration Of Foreign Worker By Job Type and Sex");
JLabel lbTop = new JLabel("Statistics taken from 01/07/1999 to 31/07/1999 ");
JLabel lbLine = new JLabel("Fomema Info Centre Report Printed as of 31/10/1999");
Vector mdata = new Vector();

public demotable() {

String columns[] = {"Employee ID", "First Name",
"Last Name", "Department"};
String rows[][] = {
{"0181", "Bill", "Cat", "Political Candidate"},
{"0915", "Opus", "Penguin", "Lost and Found"},
{"9923", "Berke", "Breathed", "Editor"}
};

mdata.addElement
JTable table = new JTable (rows, columns);

table.getColumnModel().getColumn(1).setPreferredWidth(120);
table.getColumnModel().getColumn(1).setPreferredWidth(80);
table.setCellSelectionEnabled(false);
table.setRowSelectionAllowed(true);
table.setColumnSelectionAllowed(false);
table.getTableHeader().setReorderingAllowed(false);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
JScrollPane scrollPane = new JScrollPane(table);

subpanel.setLayout(new BoxLayout(subpanel,BoxLayout.Y_AXIS));
subpanel.add(lbTitle);
subpanel.add(Box.createVerticalStrut(5));
subpanel.add(lbTop);
subpanel.add(Box.createVerticalStrut(5));
subpanel.add(lbLine);
subpanel.add(Box.createVerticalStrut(5));

setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
add(subpanel);
add(scrollPane);

} // TableDemo ends here


public static void main(String[] args) {
JFrame f = new JFrame();
demotable tab = new demotable();
f.getContentPane().add(tab);

f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
f.pack();
f.setVisible(true);

} // main ends here

} // TableDemo ends here




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[poochi]

>
how do i implement adding rows dynamically to the jtable using vector. ( i know it is vector.addElement something... But what is the actual code ? )



((DefaultTableModel)table.getModel()).addRow( v ); // Here v is a vector object.

// If you like to insert a Row in between two rows , try like this..
((DefaultTableModel)table.getModel()).insertRow( nRowIndex , v ); // One row will be inserted after nRowIndex'th row.





Poochi..

[newkid]

tableLabels.addElement("Emp Code");
tableData.addElement("0181");

JTable table = new JTable (tableData, tableLabels );


C:\JavaClass>java demotable
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1 >= 1
at java.util.Vector.elementAt(Vector.java, Compiled Code)
at javax.swing.table.DefaultTableColumnModel.getColumn(DefaultTableColum
nModel.java:261)
at demotable.<init>(demotable.java:34)
at demotable.main(demotable.java:83)


how do i add a vector that contains 3 fields to the jtable ?

i tried using the line below but it gives me some error.

tableData.addElement("0181","Bill","Cat");



C:\JavaClass>javac demotable.java
demotable.java:29: Wrong number of arguments in method.
tableData.addElement("0181","Bill","Cat");

so, what's wrong with this vector ?


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[poochi]

1. Your tableData hast to be vector of vectors.
2. If you have 2 columns in your JTable , your inner vector has to have atleast 2 objects in it.


import javax.swing.*;
import java.util.*;

public class TableEx{
public static void main( String[] str ){
JFrame frame = new JFrame();
Vector columnNames = new Vector();
columnNames.addElement( "Column1" );
columnNames.addElement( "Column2" );

Vector rowValues = new Vector();
Vector dataVector = new Vector();
dataVector.addElement( "Value1" );
dataVector.addElement( "Value2" );
rowValues.addElement( dataVector );
JTable table = new JTable( rowValues , columnNames );
JScrollPane pane = new JScrollPane(table);
frame.getContentPane().add( pane );
frame.setSize( 300,300 );
frame.setVisible( true );
}
}

[newkid]

import javax.swing.*;
import java.util.*;

public class TableEx{
public static void main( String[] str ){
JFrame frame = new JFrame();
Vector columnNames = new Vector();
columnNames.addElement( "Column1" );
columnNames.addElement( "Column2" );
Vector rowValues = new Vector();
Vector dataVector = new Vector();
dataVector.addElement( "Value1" );
dataVector.addElement( "Value2" );
rowValues.addElement( dataVector );
JTable table = new JTable( rowValues , columnNames );
JScrollPane pane = new JScrollPane(table);
frame.getContentPane().add( pane );
frame.setSize( 300,300 );
frame.setVisible( true );
}

}




how to add the second row to the above vector ?

do i have to create a new vector everytime i want to add another row to rowValues vector ?

Thanks again.


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