How can i set color some rows in jtable

Question

hi all,
i have table with two cols one is id and other name
i have array of id, i want set color for only those rows in an array
i tried with the following code but only one row is seting why it is not setting
the other rows? or this is the worg way what i did?
     model       = new DefaultTableModel(data, header);
        table          = new JTable(model){
             int mostUsedCols[] = 151,80,185,90,88,95,137,152,153,181,178,179,180,107};
             public Class getColumnClass(int column)
                    return getValueAt(0, column).getClass();
               public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                    Component c = super.prepareRenderer(renderer, row, column);
                           int id = Integer.parseInt(tblLedgerAccounts.getModel().getValueAt(row, 0).toString());
                           for(int j=0; j<mostUsedCols.length;j++){
                                c.setBackground( id == mostUsedCols[j] ? Color.LIGHT_GRAY : Color.WHITE );
                    return c;
               }help me to solve this problem
thanks
daya

Answer 1

hello,
thanks,
i have table 2 cols(say for ex) 1st column is name and other one is
id, and i have some array of id's, i need to set the color for these rows
and remainings rows are defalut color (white).
I doubt that you need the
else
c.setBackground( Color.WHITE );if i did't set like this the entire table get gray.
>
since the color should be set to the default by the
super.prepareRenderer(...) method. In fact this code
would override the default row selection coloring.
But maybe I don't understand your requirement. You
notice my original example always to check to make
sure the row is not selected before changing the
background color.here is the demo, i comment this line what will happen c.setBackground( Color.WHITE );
if not doing right than suggest me.
import java.awt.Color;
import java.awt.Component;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
public class TableColor extends JFrame {
     public TableColor()
          Vector header = new Vector();
          Vector data   = new Vector();
          header.addElement("ID");//0
          header.addElement("Name"); //1
          header.addElement("village"); //2
          Vector v = new Vector();
          v.addElement(new Integer(1));
          v.addElement("daya");
          v.addElement("DVB");
          data.addElement(v);
          Vector v1 = new Vector();
          v1.addElement(new Integer(2));
          v1.addElement("raju");
          v1.addElement("DVBs");
          data.addElement(v1);
          Vector v2 = new Vector();
          v2.addElement(new Integer(3));
          v2.addElement("James");
          v2.addElement("sdf");
          data.addElement(v2);
          Vector v3 = new Vector();
          v3.addElement(new Integer(4));
          v3.addElement("Naga");
          v3.addElement("DVBsadf");
          data.addElement(v3);
          Vector v4 = new Vector();
          v4.addElement(new Integer(5));
          v4.addElement("xyz");
          v4.addElement("asdf");
          data.addElement(v4);
        DefaultTableModel tblModLedgerAccounts      = new DefaultTableModel(data, header);
        JTable tblLedgerAccounts          = new JTable(tblModLedgerAccounts){
             int mostUsedCols[] = {2,4,5};
             public Class getColumnClass(int column)
                    return getValueAt(0, column).getClass();
               public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                    Component c = super.prepareRenderer(renderer, row, column);
                           int id = Integer.parseInt(getModel().getValueAt(row, 0).toString());
                           for(int j=0; j<mostUsedCols.length;j++){
                                if(id == mostUsedCols[j]){
                                     c.setBackground(Color.lightGray);
                                     break;
//                                else
//                                     c.setBackground(Color.WHITE);
               return c;
          JScrollPane scrollPaneLedgerAccounts =     new JScrollPane(tblLedgerAccounts);
          tblLedgerAccounts.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
          this.getContentPane().add(scrollPaneLedgerAccounts);
          setVisible(true);
          pack();
          setTitle("Table Color");
          setDefaultCloseOperation(EXIT_ON_CLOSE);
     public static void main(String args[]){
          new TableColor();
}thanks
daya