JTable enter key

Question

I am developing an application using jTable for inventory management.

The action is, by typing the item code in a jTextField and by pressin

Answer 1

You can use Java 8 lambda functions:

final String tustakmaad = "Solve";
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
        panel.getTblBelgetarihiliste().getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(
            enter, tustakmaad);
        panel.getTblBelgetarihiliste().getActionMap().put(tustakmaad, new DelegateAction(
            ae -> eventMytable_enterkey()));

and DelegateAction class should be like this:

package com.ozpas.entegre.controller;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.AbstractAction;

public class DelegateAction extends AbstractAction {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    ActionListener myaction = (ae) -> {
        System.out.println("empty action");
    };

    public DelegateAction(ActionListener customaction) {
        this.myaction = customaction;
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        myaction.actionPerformed(e);
    }

    public ActionListener getMyaction() {
        return myaction;
    }

    public void setMyaction(ActionListener myaction) {
        this.myaction = myaction;
    }

}

Answer 2

The default Key Binding for Enter is the selectNextRowCell action in the table's WHEN_ANCESTOR_OF_FOCUSED_COMPONENT input map. You can substitute your own action, as outlined below.

private static final String solve = "Solve";
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
table.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(enter, solve);
table.getActionMap().put(solve, new EnterAction());
...
private class EnterAction extends AbstractAction {

    @Override
    public void actionPerformed(ActionEvent e) {
        ...
    }
}

See also Keyboard Bindings in Swing (mirrored at web.archive.org).

Addendum: You can find more examples here, here and here; the last one is JTable specific.