getting value from JTable

[Ruel Soriano]

greetings,
how can i get value from JTable and set it to textfield. I have to classes, one for JTable class and other for Textfield class, how can i get the value when i select value from JTable class and put it on textfield which is another class.....
i really need this, please help me.....
thanks..

[Nathan Pruett]

"rule_S" -

Welcome to the JavaRanch! We don't have many rules around the ranch, but we do have a policy on displayed names... Please adjust your displayed name to meet the JavaRanch Naming Policy. User names cannot be obviously fake and must consist of a first name and a last name.

You can change your user name here.

Thanks! and welcome to the JavaRanch!

[Nathan Pruett]

You'll have to use a Listener to listen for events in the table, and in response to those events, set the text of the textfield.

import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
 
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
 

public class TableSelection
{
private JFrame frame;
private JTextField text;
private JTable table;

private static final String[] columns = {
"First Name", "Last Name", "Phone"
};

private static final String[][] rowData = {
{"Nathan", "Pruett", "(555) 555-555"},
{"rule", "S", "[phone]"}
};

public TableSelection() 
{
frame = new JFrame("TableSelection");

frame.getContentPane().setLayout(new BorderLayout());

table = new JTable(rowData, columns);
table.addMouseListener(new MouseAdapter() 
{
public void mouseClicked(MouseEvent evt)
{
int col = table.getSelectedColumn();
int row = table.getSelectedRow();
text.setText((String)table.getModel().getValueAt(row, col));
}
});

frame.getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);

text = new JTextField();

frame.getContentPane().add(text, BorderLayout.SOUTH);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}

public static void main(String[] args)
{
new TableSelection();
}
}

[Ruel Soriano]

Thanks for the reply.....but I have something to add, I want my selected value from the table will be display to another class. For example, class Table and Class Main....when i click button Find in the Main class the table from Table Class will be display and when I select value from the table and click the button Select the selected value will display to the Textfield of Main Class. How can i get it.
Many thanks and I hope you could help me again.......

[Nathan Pruett]

Create/handle the listener in the Main class, add it to the Table class.

[Ruel Soriano]

thanks for the reply, but could you please give me a brief example of that code, i really don't know how to do that.

[Nathan Pruett]

There are *lots* of ways to do that - and a lot of it depends on how those two classes are currently implemented - here's one way to do it...

TableSelection class - aka "Main"

import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
 
import javax.swing.JFrame;
import javax.swing.JTextField;
 
public class TableSelection
{
private JFrame frame;
private JTextField text;
private TableSelectionPanel tsPanel;

public TableSelection() 
{
frame = new JFrame("TableSelection");

frame.getContentPane().setLayout(new BorderLayout());

tsPanel = new TableSelectionPanel();

tsPanel.addMouseListener(new MouseAdapter() 
{
public void mouseClicked(MouseEvent evt)
{
text.setText((String)tsPanel.getSelectedValue());
}
});

frame.getContentPane().add(tsPanel, BorderLayout.CENTER);

text = new JTextField();

frame.getContentPane().add(text, BorderLayout.SOUTH);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}

public static void main(String[] args)
{
new TableSelection();
}
}

TableSelectionPanel class - aka "Table"

import java.awt.BorderLayout;
import java.awt.event.MouseListener;
 
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
 

public class TableSelectionPanel extends JPanel
{
private static final String[] columns = {
"First Name", "Last Name", "Phone"
};

private static final String[][] rowData = {
{"Nathan", "Pruett", "(555) 555-555"},
{"rule", "S", "[phone]"}
};

private JTable table;
private DefaultTableModel model;

public TableSelectionPanel()
{
model = new DefaultTableModel(rowData, columns);
table = new JTable(model);

setLayout(new BorderLayout());
add(new JScrollPane(table), BorderLayout.CENTER);
}

public synchronized void addMouseListener(MouseListener l)
{
table.addMouseListener(l);
}

public synchronized void removeMouseListener(MouseListener l)
{
table.removeMouseListener(l);
}
 
public Object getSelectedValue()
{
int col = table.getSelectedColumn();
int row = table.getSelectedRow();
return table.getModel().getValueAt(row, col);
}
}

[Ruel Soriano]

Thanks for the code, it really helped me, your a saver.....
till next time.
Thanks again.