Java Basic Problems

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

Here is a little solution to make the cells of JTable  editable or not editable.

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:

JTable cell editable or non editable

1 thought on “JTable Java : How to make JTable cells editable or not editable using DefaultTableModel.”

  1. Good!!! Bookmarked this page that has this amazing content. Will come back to see if there are any updates. You, the author, are a master. Thanks

    Like

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