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POJDBC TableModel for a JTable in Java?
 

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  1. POJDBC TableModel for a JTable in Java?
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    <p>I want to display a database table as a JTable. I have never used JTable before so I googled JTable and TableModel.</p> <p>With that googling, I am able to write my own custom TableModel which show data stored in </p> <pre><code>Object[][] data; </code></pre> <p>Now, I want to show my database table data into JTable. I searched that also and have got an idea of that but still confused about what should goes where in the implementation class of AbstractTableModel.</p> <p>Following is the code of custom TableModel.</p> <pre><code>public abstract class AbstractPOLDATTableModel extends AbstractTableModel { protected boolean DEBUG = false; private String[] columnNames; private Object[][] data; protected AbstractPOLDATTableModel(String[] columnNames, Object[][] data) { this.columnNames = columnNames; this.data = data; } public int getColumnCount() { return columnNames.length; } public int getRowCount() { return data.length; } @Override public String getColumnName(int col) { return columnNames[col]; } public Object getValueAt(int row, int col) { return data[row][col]; } @Override public Class getColumnClass(int c) { return getValueAt(0, c).getClass(); } @Override public boolean isCellEditable(int row, int col) { if (col &lt; 2) { return false; } else { return true; } } @Override public void setValueAt(Object value, int row, int col) { if (DEBUG) { System.out.println("Setting value at " + row + "," + col + " to " + value + " (an instance of " + value.getClass() + ")"); } data[row][col] = value; fireTableCellUpdated(row, col); if (DEBUG) { System.out.println("New value of data:"); printDebugData(); } } private void printDebugData() { int numRows = getRowCount(); int numCols = getColumnCount(); for (int i=0; i &lt; numRows; i++) { System.out.print(" row " + i + ":"); for (int j=0; j &lt; numCols; j++) { System.out.print(" " + data[i][j]); } System.out.println(); } System.out.println("--------------------------"); } } </code></pre> <p>Now, how to change the above code so that my JTable can have the follwing features:</p> <ol> <li>It shows data from the database</li> <li>User can edit the table directly and when he clicks on a "save" button, the changes reflect in the database data</li> <li>User can insert data directly.</li> <li>User can delete data directly.</li> </ol>
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    1. USYatendra Goel
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      1. USJames P.
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      1. USMarcus Adams
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    1. COYou where given working examples in your last posting.
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      1. UScamickr
    2. COyou asked almost the same question yesterday: http://stackoverflow.com/questions/2192764/how-to-fill-data-in-a-jtable-with-database
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      1. USsateesh
    3. COYatendra - Take a look at my example from yesterday's question and tell me where you've become stuck and I'll try to give you some pointers.
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      1. USAdamski
 

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