i have one jtable with listselectionlistener i can dynamically added the new rows in to my table,when i select the row the selected row content will be appear in text box i can able to edit and remove the data ,for my application i stored the table data into xml file,when i add new row,that will be added into table successfully. but when i select a row and update means table doesn't get update(here i call load table()).( but updated values changed in xml file correctly) this my sample code for creating table*
ListSelectionModel selectionModel;
JTable table1;
model = new DefaultTableModel();
table = new JTable(model); table.setRowHeight(20);
selectionModel = table.getSelectionModel();
selectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
selectionModel.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
stxtBox.setText("");
ptxtBox.setText("");
ntxtBox.setText("");
if (!e.getValueIsAdjusting()) {
model1 = table.getSelectionModel();
int lead = model1.getLeadSelectionIndex();
int columns = table.getColumnCount();
String sip = "";
String sport = "";
String snoq = "";
for (int col = 0; col < columns; col++) {
Object o = table.getValueAt(lead, col);
if (col == 0) {
sip += o.toString();
stxtBox.setText(sip);
selectedip = sip;
} else if (col == 1) {
sport += o.toString();
ptxtBox.setText(sport);
selectedport = sport;
} else {
snoq += o.toString();
ntxtBox.setText(snoq);
}
selectedreq = snoq;
}
}table.clearSelection();
}
});
i load the table content like this
int rowCount=0;
File file = new File("serverconfig.xml");
if (file.exists())
{
System.out.print("in load");
int e = table.getRowCount();
if(e> 0)
{
while (table.getRowCount() > 0) {
((DefaultTableModel) table.getModel()).removeRow(0);
}
}
//here i will load table content from my xml file (that's working fine)
the problem is when i update my table content i will call loadtable() function ever time i will get this error
java.lang.ArrayIndexOutOfBoundsException: 1 >= 1
at java.util.Vector.elementAt(Unknown Source)
at javax.swing.table.DefaultTableModel.getValueAt(Unknown Source)
at javax.swing.JTable.getValueAt(Unknown Source)
at Testsample$18.valueChanged(Testsample.java:1810)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.insertIndexInterval(Unknown Source)
at javax.swing.JTable.tableRowsInserted(Unknown Source)
at javax.swing.JTable.tableChanged(Unknown Source)
at javax.swing.table.AbstractTableModel.fireTableChanged(Unknown Source)
at javax.swing.table.AbstractTableModel.fireTableRowsInserted(Unknown Source)
at javax.swing.table.DefaultTableModel.insertRow(Unknown Source)
at javax.swing.table.DefaultTableModel.addRow(Unknown Source)
at javax.swing.table.DefaultTableModel.addRow(Unknown Source)
at Testsample.loadtable(Testsample.java:577)
at Testsample$10.actionPerformed(Testsample.java:1551)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
for example
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.table.*;
public class RemoveAddRows extends JFrame {
private static final long serialVersionUID = 1L;
private Object[] columnNames = {"Type", "Company", "Shares", "Price"};
private Object[][] data = {
{"Buy", "IBM", new Integer(1000), new Double(80.50)},
{"Sell", "MicroSoft", new Integer(2000), new Double(6.25)},
{"Sell", "Apple", new Integer(3000), new Double(7.35)},
{"Buy", "Nortel", new Integer(4000), new Double(20.00)}
};
private JTable table;
private DefaultTableModel model;
public RemoveAddRows() {
model = new DefaultTableModel(data, columnNames) {
private static final long serialVersionUID = 1L;
@Override
public Class getColumnClass(int column) {
return getValueAt(0, column).getClass();
}
};
table = new JTable(model) {
private static final long serialVersionUID = 1L;
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
Component c = super.prepareRenderer(renderer, row, column);
int firstRow = 0;
int lastRow = table.getRowCount() - 1;
int width = 0;
if (row == lastRow) {
((JComponent) c).setBackground(Color.red);
} else if (row == firstRow) {
((JComponent) c).setBackground(Color.blue);
} else {
((JComponent) c).setBackground(table.getBackground());
}
/*if (!isRowSelected(row)) {
String type = (String) getModel().getValueAt(row, 0);
c.setBackground("Buy".equals(type) ? Color.GREEN : Color.YELLOW);
}
if (isRowSelected(row) && isColumnSelected(column)) {
((JComponent) c).setBorder(new LineBorder(Color.red));
}*/
return c;
}
};
table.setPreferredScrollableViewportSize(table.getPreferredSize());
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane);
JButton button1 = new JButton("Remove all rows");
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
if (model.getRowCount() > 0) {
for (int i = model.getRowCount() - 1; i > -1; i--) {
model.removeRow(i);
}
}
System.out.println("model.getRowCount() --->" + model.getRowCount());
}
});
JButton button2 = new JButton("Add new rows");
button2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Object[] data0 = {"Buy", "IBM", new Integer(1000), new Double(80.50)};
model.addRow(data0);
Object[] data1 = {"Sell", "MicroSoft", new Integer(2000), new Double(6.25)};
model.addRow(data1);
Object[] data2 = {"Sell", "Apple", new Integer(3000), new Double(7.35)};
model.addRow(data2);
Object[] data3 = {"Buy", "Nortel", new Integer(4000), new Double(20.00)};
model.addRow(data3);
System.out.println("model.getRowCount() --->" + model.getRowCount());
}
});
JPanel southPanel = new JPanel();
southPanel.add(button1);
southPanel.add(button2);
add(southPanel, BorderLayout.SOUTH);
}
public static void main(String[] args) {
RemoveAddRows frame = new RemoveAddRows();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}