JTable add 2 mini button into a cell

Question

I wanted to know how to add 2 small button into a cell. This is used for 'Quantity' column in my jtable.

I want to do as the image above, user are allowed to edit the number inside or clicking add or minus the number, how do I do it?

Answer 1

The two arrows are part of a component called a Spinner. You can use a JSpinner to create textbox and use the SpinnerNumberModel to allow it to use numerical values:

JSpinner spinner = new JSpinner();
spinner.setModel(new SpinnerNumberModel());

You can read more about spinners in the Java documentation

To add it to a table, you will need a custom class which extends DefaultCellEditor. A few examples can be found here:

• Is there a convenient way to use a spinner as an editor in a Swing JTable?
• Use JSpinner like JTable cell editor