Changing color in JTable objects
Hi all,
I'm writing an application which shows tabular view of events of some outcome. Now I want to give color to each row depending on the severity of particular parameters in the table. I've written application using swings and using components JTable. Is there any way to give color to each depending on value so that I can give colors to each row Red, Blue and Green like that and all
Waiting for your precious replies,
With best regards,
harry_sai
Yes, you use a TableCellRenderer. Rather than explain further I'll just refer you to the tutorial about JTable.
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I'm trying to change the color of rows when the 5th column meets certain criteria. I think I'm very close, but I've hit a wall.
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public void tableChanged(TableModelEvent e)
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import javax.swing.table.*;
import javax.swing.*;
import java.awt.Component;
import java.awt.Color;
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int specRow, specCol;
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specRow = -1;
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setHorizontalAlignment(JLabel.CENTER);
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setBackground(color);
setText((String)value);
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Here's the modified code from the program given in the link. All I did was declare the table for the class, and modify the if so I could add the "table.setRowHeight(row, 30);" line.
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
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Object[] columnNames = {"Type", "Company", "Shares", "Price", "Boolean"};
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{"Short Sell", "Apple", new Integer(3000), new Double(7.35), Boolean.TRUE},
{"Buy", "MicroSoft", new Integer(4000), new Double(27.50), Boolean.FALSE},
{"Short Sell", "Cisco", new Integer(5000), new Double(20), Boolean.TRUE}
DefaultTableModel model = new DefaultTableModel(data, columnNames)
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tabbedPane.addTab("Border", createBorder(model));
tabbedPane.addTab("Data", createData(model));
add( tabbedPane );
private JComponent createAlternating(DefaultTableModel model)
JTable table = new JTable( model )
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JTable table = new JTable( model )
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private Border highlight = new CompoundBorder(outside, inside);
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Component c = super.prepareRenderer(renderer, row, column);
JComponent jc = (JComponent)c;
// Add a border to the selected row
if (isRowSelected(row))
jc.setBorder( highlight );
return c;
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.changeSelection(0, 0, false, false);
return new JScrollPane( table );
public JComponent createData(DefaultTableModel model)
table = new JTable( model )
public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
Component c = super.prepareRenderer(renderer, row, column);
// Color row based on a cell value
if (!isRowSelected(row))
c.setBackground(getBackground());
String type = (String)getModel().getValueAt(row, 0);
if ("Buy".equals(type)) {
table.setRowHeight(row, 30);
c.setBackground(Color.GREEN);
if ("Sell".equals(type)) c.setBackground(Color.YELLOW);
return c;
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.changeSelection(0, 0, false, false);
return new JScrollPane( table );
public static void main(String[] args)
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
public static void createAndShowGUI()
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("Table Row Rendering");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( new TableRowRenderingTip() );
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}Edited by: scavok on Apr 26, 2010 6:43 PM -
How can I change the color of a object inside a symbol?
Hello!
I'm working on this study and I need to change the color of an object inside a symbol when I click another object.
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My files
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http://www.meschrene.puremadnessproductions.net/Samples/HELP/LapisB/Lapis.html
http://www.meschrene.puremadnessproductions.net/Samples/HELP/LapisB/Lapis.zip
You need to create a var that changes the css background color..
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Message was edited by: ♥Schrene -
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Harold McDougal wrote:
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