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copied!<p>You need to read docs about <a href="http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#renderer" rel="nofollow">Renderers</a>. For proper use of it.</p> <p>Next code add custom cell renderer to your column:</p> <pre><code> TableColumn column = table.getColumnModel().getColumn(1); column.setCellRenderer(getRenderer()); </code></pre> <p>Example code for <code>getRenderer</code> method:</p> <pre><code>private static TableCellRenderer getRenderer() { return new DefaultTableCellRenderer(){ @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { boolean solved = false; if (value.toString().endsWith("Solved")) { solved = true; value = value.toString().replace("Solved", ""); } Component tableCellRendererComponent = super.getTableCellRendererComponent(table, value,isSelected, hasFocus, row, column); if (solved) { tableCellRendererComponent.setBackground(Color.GREEN); } else { tableCellRendererComponent.setBackground(table.getBackground()); } return tableCellRendererComponent; } }; } </code></pre> <p>That method returns <a href="http://docs.oracle.com/javase/7/docs/api/javax/swing/table/DefaultTableCellRenderer.html" rel="nofollow">DefaultTableCellRenderer</a>. Here in <code>if-else</code> statement you determine background for cell.</p> <p>EDIT: 1) Changed <code>getRenderer</code> method.</p> <p>2)create your popUp in next way:</p> <pre><code> pm = new JPopupMenu(); pm.add(one); pm.add(two); one.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent me) { if(row != -1) System.out.println("sfsdf" + row); } }); two.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent me) { if(row != -1){ Object valueAt = table.getValueAt(row,1); table.setValueAt(valueAt+"Solved", row,1); ((DefaultTableModel)table.getModel()).fireTableDataChanged(); } } }); </code></pre> <p>because you add Listeners every time you call <code>showPopup</code> method instead of that you must to add it only once as in my example. <code>row</code> field I set as static field.</p> <p>3) your method showPopup changed:</p> <pre><code>private static void showPopup(MouseEvent me) throws FontFormatException, IOException { // is this event a popup trigger? if (pm.isPopupTrigger(me)) { Point p = me.getPoint(); row = table.rowAtPoint(p); final int col = table.columnAtPoint(p); // if we've clicked on a row in the second column if (row != -1 && col == 1) { final ImageIcon progress = new ImageIcon("images/progress.png"); one.setIcon(progress); final ImageIcon ok = new ImageIcon("images/ok.png"); two.setIcon(ok); one.setText("In progress " + row + "."); two.setText("Solved " + row + "."); pm.show(table, p.x, p.y); } } } </code></pre> <p>4) create your table next way <code>table = new JTable(new DefaultTableModel(data, columnNames));</code></p> <p>If you change your code as I recomended, when you push <strong>Solved</strong> in popUp then cell will be with green background.</p>

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