JTable Java : How to make JTable cells editable or not editable using DefaultTableModel.

Here I have coded to make the cells of  Column-1 not editable but cells of Column-2 and Column-3 are editable.

Code Example:

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.table.*;

class SimpleTableTest extends JFrame

                {

private JPanel topPanel ;

private JTable table;

private JScrollPane scrollPane;

private String[] columnNames= new String[3];

private String[][] dataValues=new String[3][3] ;

public SimpleTableTest()

    {

setTitle(“JTable Cell Not Editable”);

setSize(300,300);

topPanel= new JPanel();

topPanel.setLayout(new BorderLayout());

getContentPane().add(topPanel);

setDefaultCloseOperation(EXIT_ON_CLOSE);

columnNames=new String[] {“Column 1” , “Column 2” , “Column 3”};

 dataValues = new String[][]   {

                        {“1″,”2″,”3”},

                        {“4″,”5″,”6”},

                        {“7″,”8″,”9”}

                                            };

 TableModel model=new myTableModel();

 table =new JTable( );

 table.setRowHeight(50);

 table.setModel(model);

 scrollPane=new JScrollPane(table);

 topPanel.add(scrollPane,BorderLayout.CENTER);    

            }

            public class myTableModel extends DefaultTableModel

                        {

                myTableModel( )

                         {

                          super(dataValues,columnNames);

                          System.out.println(“Inside myTableModel”);

                                     }

                        public boolean isCellEditable(int row,int cols)

                         {

                           if(cols==0 ){return false;}

      //It will make the cells of Column-1 not Editable

                              return true;                                                                                    

                                                }

                                                }         

            public static void main(String args[])

            {

            SimpleTableTest mainFrame=new SimpleTableTest();

            mainFrame.setVisible(true);

            }         

            }

OUTPUT: