How could I implement autocompletion using Swing

0 votes
I'm interested in providing an autocompletion box in a JFrame. The triggering mechanism will be based on mnemonics (I think), but I'm not really sure what to use for the "autocompletion box" (I would like results to be filtered as the user presses keys).

How would you implement this? Some sort of JFrame, or a JPopupMenu?
Apr 21, 2020 in Java by kartik
• 37,510 points
139 views

1 answer to this question.

0 votes

Hello,

You can try out this:

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

public class Autocompleter2
{
    //~ Methods ------------------------------------------------------------------------------------

    public static void main(String[] args)
      throws Exception
    {
        // YES, IT'S EMPTY !!!
        // It'll start anyway because of static initializers
        SwingUtilities.invokeLater(new Runnable()
            {
                @Override
                public void run()
                {
                    final JPopupMenu textPopupMenu = new JPopupMenu("MENU")
                    {

                        {
                            add(new JMenuItem("item 1"));
                            add(new JMenuItem("item 2"));
                            setFocusable(false);
                        }
                    };

                    final JTextArea textInput = new JTextArea("type something la")
                    {

                        {
                            setCaretPosition(getText().length());
                        }
                    };
answered Apr 21, 2020 by Niroj
• 82,680 points

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