Source Code : how to get the values from selected row of JTable

how to get the values from selected row of JTable

import java.awt.*;  
import java.awt.event.*;  
import javax.swing.*;  
import javax.swing.event.*;  
import javax.swing.table.*;  
   
public class ReadingARow  
{  
  JTable table;  
  JLabel label;  
   
  public ReadingARow()  
  {  
  String[] headers = { "column 1", "column 2", "column 3", "column 4" };  
  int rows = 18;  
  int cols = 4;  
  String[][] data = new String[rows][cols];  
  for(int row = 0; row < rows; row++)  
  for(int col = 0; col < cols; col++)  
  data[row][col] = "item " + (row * cols + col + 1);  
  table = new JTable(data, headers);  
  ListSelectionModel selectionModel = table.getSelectionModel();  
  selectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);  
  selectionModel.addListSelectionListener(new RowListener(this));  
  label = new JLabel();  
  label.setHorizontalAlignment(JLabel.CENTER);  
  label.setBorder(BorderFactory.createTitledBorder("selected row values"));  
  Dimension d = label.getPreferredSize();  
  d.height = 45;  
  label.setPreferredSize(d);  
  JFrame f = new JFrame();  
  f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
  f.getContentPane().add(new JScrollPane(table));  
  f.getContentPane().add(label, "South");  
  f.setSize(400,400);  
  f.setLocation(200,200);  
  f.setVisible(true);  
  }  
   
  public static void main(String[] args)  
  {  
  new ReadingARow();  
  }  
}  
   
class RowListener implements ListSelectionListener  
{  
  ReadingARow readRow;  
  JTable table;  
   
  public RowListener(ReadingARow rar)  
  {  
  readRow = rar;  
  table = readRow.table;  
  }  
   
  public void valueChanged(ListSelectionEvent e)  
  {  
  if(!e.getValueIsAdjusting())  
  {  
  ListSelectionModel model = table.getSelectionModel();  
  int lead = model.getLeadSelectionIndex();  
  displayRowValues(lead);  
  }  
  }  
   
  private void displayRowValues(int rowIndex)  
  {  
  int columns = table.getColumnCount();  
  String s = "";  
  for(int col = 0; col < columns; col++)  
  {  
  Object o = table.getValueAt(rowIndex, col);  
  s += o.toString();  
  if(col < columns - 1)  
  s += ", ";  
  }  
  readRow.label.setText(s);  
  }  
}