Java JTable, how to change cell data (write text in)?

Question

Am looking to change a cell's data in a jtable. How can I do this? When I execute the following code I get errors.

JFrame f= new JFrame();
final JTable table= new JTable(10,5);

TableModelListener tl= new TableModelListener(){
  public void tableChanged(TableModelEvent e){

    table.setValueAt("hello world",2,2);
  }
};

table.getModel().addTableModelListener(tl);
f.add(table);
f.pack();
f.setVisible(true);

I have also tried this below but it still doesn't work. What gives?

table.getModel().setValueAt("hello world",2,2);

It doesn't compile. My problem is simple: when a jtable cell value is changed, I want to edit a particular cell — xWAV92OdD445CbzcZAEyunk2M06fJi, Oct 29 '12 at 13:16

score 3 · Answer 1 · edited Jun 18 '16 at 02:07

3

Calling table.setValueAt() within a TableModelListener causes the tableChanged() method to be called followed by the setValueAt() method being called again and so on ad infinitum, resulting in a StackOverflowError.

One solution is to use a CellEditorListener instead. See this example.

edited Jun 18 '16 at 02:07

Benjamin W.

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answered Oct 28 '12 at 23:45

Reimeus

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This doesn't really solve my problem. When something happens to a jtable, how would I be able to write to a cell? – xWAV92OdD445CbzcZAEyunk2M06fJi Oct 29 '12 at 00:07
1

I think you're looking for a `CellEditorListener`. See the link to the example above. – Reimeus Oct 29 '12 at 00:13
1

`tableChanged` is telling you something has ALREADY happened – MadProgrammer Oct 29 '12 at 00:32
@Reimeus the link is now broken. Is there another example you know of? Perhaps on SO? – intcreator Dec 08 '15 at 22:52
see [this example](http://stackoverflow.com/questions/11107984/get-edited-treenode-from-a-celleditorlistener/11113648#11113648) :) – Reimeus Dec 08 '15 at 23:02

score 0 · Answer 2 · answered Oct 29 '12 at 10:57

0

You can use Rob Camick's example that help me alot, in addition you can get old and new value also by using this class. Example!

Also look at the end of Blog to see my post to Add Addiional Code to the Form Load Event To Handle Last Change Occur To Your Table.

 MouseEvent me = new MouseEvent(tblDetailInfo, 0, 0, 0, 100, 100, 1, false);
for(MouseListener ml: tblDetailInfo.getMouseListeners()){
ml.mouseClicked(me); }

answered Oct 29 '12 at 10:57

Syed Muhammad Mubashir

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Sorry but this isn't what i'm looking for either. My problem is simple: when a jtable cell value is changed, I want to edit a particular cell. – xWAV92OdD445CbzcZAEyunk2M06fJi Oct 29 '12 at 12:58

Java JTable, how to change cell data (write text in)?

2 Answers2