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  1. PO
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    <p>The problem is, you <code>isCellEditable</code> method is using a single dimension array (which is okay to do if that's what you want it to do)</p> <pre><code> @Override public boolean isCellEditable(int rowIndex, int columnIndex) { return canEdit [columnIndex]; } </code></pre> <p>This basically says, that for all the cells in a given <code>column</code> that they should be editable or not.</p> <p>If you want make an individual cell editable/uneditable, you need to determine if the combination of <code>row</code> and <code>column</code> makes the cell editable/uneditable, not just the <code>column</code></p> <p><strong>Updated with simple example</strong></p> <p>This is a SIMPLE example of the concept. Personally, I wouldn't use a 2D array for this because it becomes to difficult to manage with dynamically table models...</p> <p><img src="https://i.stack.imgur.com/Qxe75.png" alt="enter image description here"></p> <pre><code>import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.table.DefaultTableModel; public class TestTable { public static void main(String[] args) { new TestTable(); } public TestTable() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } MyTableModel model = new MyTableModel(); JTable table = new JTable(model); JFrame frame = new JFrame("Testing"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new JScrollPane(table)); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class MyTableModel extends DefaultTableModel { public MyTableModel() { super(new Object[][]{ {"Item ID", ""}, {"Radius", 0}, {"Center", 0}, {"Mass", 0} }, new String[]{ "Property", "Value" }); } Class[] types = new Class[]{ String.class, Object.class }; boolean[][] canEdit = new boolean[][]{ {false, false}, {false, true}, {true, true}, {true, false}, }; @Override public Class getColumnClass(int columnIndex) { return types[columnIndex]; } @Override public boolean isCellEditable(int rowIndex, int columnIndex) { return canEdit[rowIndex][columnIndex]; } } } </code></pre>
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    1. POHow to make individual Cell of a JTable Uneditable
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    1. USMadProgrammer
    1. USMadProgrammer
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    1. COi used the 2d araay and return canEdit[rowIndex][ColumnIndex] still not working..It makes the whole row or Column Ineditable: canEdit=new boolean[][]{//true or false pairs for each row};
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      1. USMadeyedexter
    2. COI'd avoid using a 2D array, personally, as it becomes difficult to manage. I would, instead, use the values form the rows/columns to determine if a cell should be editable, but that's more of a products idea ;)
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    3. COBut even if i use a 2d array, it should work, isn't it?
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