How to remove cells interection line in JTable

Question

Hello
I am new to Java Programming
I am facing a problem which i did not know how to solve so i need help from experts of this forum
I have JTable of lets say 5 columns and from that i want to hide some columsn e.g i want to get only column 0(or ist column) and column 5(5th column) visible to me and not the inbetween columns(i.e 2,3,4) so i coded it like this:
for(int count=0;count< ConnectedDrivestable.getColumnCount();count++)
               tcm = ConnectedDrivestable.getColumnModel();
               cm=tcm.getColumn(count);
              if( count==0 || count==4)
                   cm.setPreferredWidth(15);
               cm.setMinWidth(0);                   
                   cm.setMaxWidth(15);                   
              else {
                   //ConnectedDrivestable.removeColumn(cm);
                       //ConnectedDrivestable.removeColumn(tcm.getColumn(count));
                   cm.setPreferredWidth(0);
               cm.setMinWidth(0);          
                   cm.setMaxWidth(0);
          }where ConnectedDrivestable is my JTable of lets say 5 rows and 5 columns
tcm is TableColumnModel and cm is TableColumn object
But the problem is that i am getting vertical line in between and that is the intersection line of column 1 and column 5(i.e the intersection line of two columns that are visible) i dont want this in between vertical line to appear
I really dont know how to fix this problem i have searched on internet but unable to find the appropriate solution to it
Also as shown in my code i tried to work with removeColumn method which documentation says should remove the desired columns but i dont know why it is not functioing for my case the way i acpected am i doing something wrong or?
So urgent help from people here is required
Thanks in advance
Imran

Answer 1

Hello
Thanks for reply and thanks for help
Do please tell me that i am rendering cells of JTable with JLabel it is working fine but i want to span JLabel onto multicells in the same row
Second i want to change the size of JLabel so that if not needed JLabel did not cover the whole Cell
A bit of code which i am using to do cel rendering is attched for your kind considerations
ConnectedDrivestable.getColumnModel().getColumn(1).setCellRenderer((new  DefaultTableCellRenderer ()
               public Component getTableCellRendererComponent(JTable table, Object value,
                         boolean isSelected,
                         boolean hasFocus,
                         int row, int column)
                    JLabel Jlbl=new JLabel();
                    if(row==2)
                         ((JComponent)Jlbl).setOpaque(true); //if comp is a JLabel:Necessary
                         //Jlbl.setBorder(BorderFactory.createLineBorder(Color.BLACK));
                         Jlbl.setBackground(Color.GREEN);
                         Jlbl.setLocation(row,column);
                         System.out.print("The Column number is : "+column);
                         System.out.print("The answer is: "+ column+2);
                         ((JComponent)Jlbl).setMinimumSize(new Dimension(1,1));
                         ((JComponent)Jlbl).setMaximumSize(new Dimension(0,0));
                    return Jlbl;
                    //return comp;
          }));Another piece of code which i got from internet for doing the same is
ConnectedDrivestable.getColumnModel().getColumn(2).setCellRenderer((new  DefaultTableCellRenderer ()
               public Component getTableCellRendererComponent(JTable table, Object value,
                         boolean isSelected,
                         boolean hasFocus,
                         int row, int column)
                    Component comp = super.getTableCellRendererComponent
                         (table, value, isSelected, hasFocus, row, column);                         
                    //((JComponent)comp).setBorder(new LineBorder(Color.BLACK));                         
                    if(row==2 && column==2)
                         //((JComponent)comp).setBorder(new LineBorder(Color.BLACK));
                         comp.setBackground(Color.GREEN);
                         ((JComponent)comp).setMinimumSize(new Dimension(1,1));
                         ((JComponent)comp).setMaximumSize(new Dimension(1,1));                                   
                    else
                         comp.setBackground(Color.white);
                    return comp;
          }));These both work but as i tried to change the size of JLabel in the Cells it did not work also if i wanted to span JLabels to multiple cells(Column) is it not working
Also as in code snippet i am trying to set the border which works fine but what i want is that after spanning JLabel to multiple cells then i want border along this how to do this help in this regard too?might if i could span JLabel to diffrent columns might i able to set border aroung them too
I am putting under old forum topic this question as it is realted to my same problem so do please apologize me.
I do need urgent help in this regard so kind help is needed
Regards