How can I get the text in a JTable ?

Question

For example I have a Table that I want to get text that's in the first column and store it in an ArrayList.

Answer 1

There is everything you need here!

Answer 2

Java Tables often use the TableModel interface for storage.

You can get the a particular value via:

myJTable.getModel().getValueAt(rowIndex, columnIndex);

More on that: Sun's Swing Table Tutorial

Answer 3

You need to go through the JTable's TableModel, accessible through the getModel() method. That has all the information you need.

Answer 4

public static void main(String[] args)
{
 try
 {
  final JFrame frame = new JFrame();
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  Container cp = frame.getContentPane();
  cp.setLayout(new FlowLayout());

  final JTable tbl = new JTable(new String[][]{{"c1r1", "c2r1"}, {"c1r2", "c2r2"}}, new String[]{"col 1", "col 2"});

  cp.add(tbl);
  cp.add(new JButton(new AbstractAction("click")
  {
   @Override
   public void actionPerformed(ActionEvent e)
   {
    List<String> colValues = new ArrayList<String>();

    for (int i = 0; i < tbl.getRowCount(); i++)
     colValues.add((String) tbl.getValueAt(0, i));

    JOptionPane.showMessageDialog(frame, colValues.toString());
   }
  }));

  frame.pack();
  frame.setVisible(true);
 }
 catch (Throwable e)
 {
  e.printStackTrace();
 }
}