tablecellrenderer

I need a way to draw attention to particular cells in a large JTable (20x16!), and I want to know what it would take for the text to blink, e.g. 900msec on and 100msec off. (I'm familiar with the concept of a TableCellRenderer ) Is there a way to do this just for the cells in question, without causing all the cells to redraw? trashgod The required duty cycle (900 ms on, 100 ms off) and count (20 x 16) is well within the capability of JTable rendering, which uses the flyweight pattern for efficiency. On the rare occasion when profiling warrants, see the article Christmas Tree Applications . See

I have a question for JTable. When I select a cell and then there are same value cell in JTable which I chose, that cells highlight background red color. I don't know what to do.... P.S: I am sorry, I do not know how to enter the code in here...;; You can implement ListSelectionListener to track selection changes in a table. Then implement TableCellRenderer that would change background of a cell with the same value of a selected object. Check out How to Use Tables for more details on JTable , renderers and selection. Here is a very simple example that demonstrates this idea: import javax.swing

I have a JTable and i have a method which implements search in table rows and columns, i use regular expressions and i want to paint(eg yellow) the text which matches with the regular expression in the cell. I want to paint the text not the background of the cell and only the part of word which matches with reg expression. The code for my search method is: for (int row = 0; row <= table.getRowCount() - 1; row++) { for (int col = 0; col <= table.getColumnCount() - 1; col++) { Pattern p = Pattern.compile("(?i)" + search_txt.getText().trim()); Matcher m = p.matcher(table.getValueAt(row, col)

I write a Java application and I need to a object of class JTable that has some features : Auto wrapping line Right alignment Auto resize row height (This means for example size of a row is 25 but size of another row in table is 50 with content size of a row) Speed of rendering must be high But my code does not work fast and has not top features completely, I am write a minimal version of my application in last of question: This is my gui class: import javax.swing.*; import java.awt.*; public class GUI extends JFrame { private BankTable table; private JScrollPane scrollPane; public GUI(){

Can someone give me an example of how to get the background color of a particular cell in a JTable? I am unable to find an example of how to do this. Plenty of examples on getting the value in a cell, but not the background color of a cell. It should be something like the following (fixed according to all comments): Important: use table.prepareRenderer(...) to let JTable do all work for you public Color getTableCellBackground(JTable table, int row, int col) { TableCellRenderer renderer = table.getCellRenderer(row, col); Component component = table.prepareRenderer(renderer, row, col); return

I would like to set the color of a cell based on the value of the cell. Having googled around for a bit i found out that i can do it using something like this: public class TableCellRenderer extends DefaultTableCellRenderer { @Override public Component getTableCellRendererComponent( JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int col) { // get the DefaultCellRenderer to give you the basic component Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, col); // apply your rules if (value.toString().equals("Red")) c