How to add mouse listener for a single row alone

Question

I have a requirement. In a JTable when I double click a particular row the cells in the row should set to the width which I have provided.
The problem with my code is when I click fourth row in the table, the first row gets adjusted.
So how I need help is
only if I click the first row, the first row cell size should get adjusted not when I click fourth row.
Similarly if I give some cell width and height for fourth row cells, then when I double click the fourth row, the fourth should alone get adjusted and not the other rows.
Hope I have explained clearly.
How can it be achieved?
Please find below my code. Everything is hardcoded. So it may look messy. Please excuse.
// Imports
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
class SimpleTableExample extends JFrame {
// Instance attributes used in this example
private JPanel topPanel;
private JTable table;
private JScrollPane scrollPane;
String data1 = "";
String data2 = "123456789ABCDEFGHIJKLMNOPQRSTUVQWXYZabcdefghijklmnopqrstuvwxyzaquickbrownfoxjumpedoverthelazydog";
int size = data2.length();
// Constructor of main frame
public SimpleTableExample() {
     // Set the frame characteristics
     setTitle("Simple Table Application");
     setSize(400, 200);
     setBackground(Color.gray);
     // Create a panel to hold all other components
     topPanel = new JPanel();
     topPanel.setLayout(new BorderLayout());
     getContentPane().add(topPanel);
     // Create columns names
     String columnNames[] = { "SEL", "DESIGN DATA", "PART NUMBER" };
     // Create some data
     String dataValues[][] = { { data1, data2, "67", "77" },
          { "", "43", "853" }, { "", "89.2", "109" },
          { "", "9033", "3092" } };
     DefaultTableModel model = new DefaultTableModel(dataValues, columnNames);
     model.addColumn("PART TITLE");
     model.addColumn("SPECIAL INSTRUCTIONS");
     table = new JTable(model) {
     public boolean isCellEditable(int rowIndex, int colIndex) {
          return false;
     // set specific row height
     table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
     int colInd = 0;
     TableColumn col = table.getColumnModel().getColumn(colInd);
     int width = 50;
     col.setPreferredWidth(width);
     int colInd2 = 1;
     TableColumn col2 = table.getColumnModel().getColumn(colInd2);
     int width2 = 100;
     col2.setPreferredWidth(width2);
     int colInd3 = 2;
     TableColumn col3 = table.getColumnModel().getColumn(colInd3);
     int width3 = 10;
     col3.setPreferredWidth(width3);
     int colInd4 = 3;
     TableColumn col4 = table.getColumnModel().getColumn(colInd4);
     int width4 = 10;
     col4.setPreferredWidth(width4);
     int colInd5 = 4;
     TableColumn col5 = table.getColumnModel().getColumn(colInd5);
     int width5 = 10;
     col5.setPreferredWidth(width5);
     table.addMouseListener(new MouseAdapter() {
     public void mouseClicked(MouseEvent e) {
          if (e.getClickCount() == 2) {
          JTable target = (JTable) e.getSource();
          int row = target.getSelectedRow();
          int column = target.getSelectedColumn();
          TableColumn col1 = table.getColumnModel().getColumn(0);
          col1.setPreferredWidth(50);
          TableColumn col2 = table.getColumnModel().getColumn(1);
          col2.setPreferredWidth(400);
          table.getColumnModel().getColumn(1).setCellRenderer(
               new TableCellLongTextRenderer());
          table.setRowHeight(50);
          TableColumn col5 = table.getColumnModel().getColumn(4);
          col5.setPreferredWidth(200);
     // Create a new table instance
     // table = new JTable(dataValues, columnNames);
     // Add the table to a scrolling pane
     scrollPane = new JScrollPane(table);
     topPanel.add(scrollPane, BorderLayout.CENTER);
// Main entry point for this example
public static void main(String args[]) {
     // Create an instance of the test application
     SimpleTableExample mainFrame = new SimpleTableExample();
     mainFrame.setVisible(true);
class TableCellLongTextRenderer extends JTextArea implements TableCellRenderer {
public Component getTableCellRendererComponent(JTable table, Object value,
     boolean isSelected, boolean hasFocus, int row, int column) {
     this.setText((String) value);
     this.setWrapStyleWord(true);
     this.setLineWrap(true);
     // set the JTextArea to the width of the table column
     setSize(table.getColumnModel().getColumn(column).getWidth(),
          getPreferredSize().height);
     if (table.getRowHeight(row) != getPreferredSize().height) {
     // set the height of the table row to the calculated height of the
     // JTextArea
     table.setRowHeight(row, getPreferredSize().height);
     return this;
Edited by: 915175 on Aug 3, 2012 4:24 AM

Answer 1

Hi
Try below code. Hope this will help
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
public class SimpleTableExample extends JFrame {
private JPanel topPanel;
private JTable table;
private JScrollPane scrollPane;
String data1 = "";
String data2 = "123456789ABCDEFGHIJKLMNOPQRSTUVQWXYZabcdefghijklmnopqrstuvwxyzaquickbrownfoxjumpedoverthelazydog";
int size = data2.length();
// Constructor of main frame
public SimpleTableExample() {
// Set the frame characteristics
setTitle("Simple Table Application");
setSize(400, 200);
setBackground(Color.gray);
// Create a panel to hold all other components
topPanel = new JPanel();
topPanel.setLayout(new BorderLayout());
getContentPane().add(topPanel);
// Create columns names
String columnNames[] = { "SEL", "DESIGN DATA", "PART NUMBER" };
// Create some data
String dataValues[][] = { { data1, data2, "67", "77" },
{ "", "43", "853" }, { "", "89.2", "109" },
{ "", "9033", "3092" } };
DefaultTableModel model = new DefaultTableModel(dataValues, columnNames);
model.addColumn("PART TITLE");
model.addColumn("SPECIAL INSTRUCTIONS");
table = new JTable(model) {
public boolean isCellEditable(int rowIndex, int colIndex) {
return false;
// set specific row height
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
int colInd = 0;
TableColumn col = table.getColumnModel().getColumn(colInd);
int width = 50;
col.setPreferredWidth(width);
int colInd2 = 1;
TableColumn col2 = table.getColumnModel().getColumn(colInd2);
int width2 = 100;
col2.setPreferredWidth(width2);
int colInd3 = 2;
TableColumn col3 = table.getColumnModel().getColumn(colInd3);
int width3 = 10;
col3.setPreferredWidth(width3);
int colInd4 = 3;
TableColumn col4 = table.getColumnModel().getColumn(colInd4);
int width4 = 10;
col4.setPreferredWidth(width4);
int colInd5 = 4;
TableColumn col5 = table.getColumnModel().getColumn(colInd5);
int width5 = 10;
col5.setPreferredWidth(width5);
// Cell Render should apply on each column -- add by Rupali
for(int i=0; i< table.getColumnModel().getColumnCount(); i++){
table.getColumnModel().getColumn(i).setCellRenderer( new TableCellLongTextRenderer());
table.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() == 2) {
JTable target = (JTable) e.getSource();
int row = target.getSelectedRow();
int column = target.getSelectedColumn();
setTableCellHeight(table,row,column); //Added by Rupali
TableColumn col1 = table.getColumnModel().getColumn(0);
col1.setPreferredWidth(50);
TableColumn col2 = table.getColumnModel().getColumn(1);
col2.setPreferredWidth(400);
TableColumn col5 = table.getColumnModel().getColumn(4);
col5.setPreferredWidth(200);
// Create a new table instance
// table = new JTable(dataValues, columnNames);
// Add the table to a scrolling pane
scrollPane = new JScrollPane(table);
topPanel.add(scrollPane, BorderLayout.CENTER);
* Created By Rupali
* This will set cell's height and column's width
* @param table
* @param row
* @param column
public void setTableCellHeight(JTable table, int row, int column) {
// set the JTextArea to the width of the table column
setSize(table.getColumnModel().getColumn(column).getWidth(),
getPreferredSize().height);
if (table.getRowHeight(row) != getPreferredSize().height) {
// set the height of the table row to the calculated height of the
// JTextArea
table.setRowHeight(row, getPreferredSize().height);
// Main entry point for this example
public static void main(String args[]) {
// Create an instance of the test application
SimpleTableExample mainFrame = new SimpleTableExample();
mainFrame.setVisible(true);
class TableCellLongTextRenderer extends JTextArea implements TableCellRenderer {
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
this.setText((String) value);
this.setWrapStyleWord(true);
this.setLineWrap(true);
return this;
}