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POJTable Cell Renderer
 

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    <p>I'm following some code I found, (Yes I understand how it works) It's from here :<a href="http://www.java-forums.org/awt-swing/541-how-change-color-jtable-row-having-particular-value.html#post1015">Code Link</a></p> <p>What i'm trying to do is set a cells Foreground color if the cells value is set to "yellow"</p> <p>Here is my Code:</p> <pre><code>public class Board extends JPanel{ private static final long serialVersionUID = 1L; int boardHeight = 20; int boardWidth = 10; JTable table; public Board() { table = new JTable(this.boardHeight, this.boardWidth); table.setDefaultRenderer(String.class, new BoardTableCellRenderer()); table.setFocusable(false); table.setShowGrid(false); table.setRowMargin(0); table.setIntercellSpacing(new Dimension(0,0)); table.setRowSelectionAllowed(false); table.setVisible(true); this.add(table); this.setPreferredSize(new Dimension(table.getPreferredSize().width, (table.getPreferredSize().height + 85))); } public void paint(Graphics g) { table.setRowHeight(20); for (int x = 0; x &lt; this.table.getColumnCount(); ++x) { TableColumn col = this.table.getColumnModel().getColumn(x); col.setPreferredWidth(20); } } } </code></pre> <p>And the Cell Renderer</p> <pre><code>public class BoardTableCellRenderer extends DefaultTableCellRenderer { private static final long serialVersionUID = 1L; public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,int row,int col) { Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, col); String s = table.getModel().getValueAt(row, col).toString(); if (s.equalsIgnoreCase("yellow")) { c.setForeground(Color.YELLOW); } else { c.setForeground(Color.WHITE); } return c; } } </code></pre> <p>The problem is it isn't changing, if I set any cells value to "yellow"</p> <p>Thanks in advance!</p>
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    1. COYou shouldn't be overriding JPanel's paint method but rather its paintComponent method, and regardless of this, you should never have program logic being called from within paint or paintComponent. This suggests that your code needs to be over-hauled.
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    2. COThis is in there because eventually i'm going to make it stretch with the window size, so I need it to update.
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    3. COthat's not how you make it stretch. Again, never put code logic in these methods. You never have full control over when or even if this method is called. If you absolutely need to listen to a resize event (and are not using an appropriate layout manager), then you need to add a ComponentListener to the JPanel.
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