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Thread: JMenuItem action Listener

  1. #1
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    Default JMenuItem action Listener

    Hi, Ive been trying to add action listeners to my menu items. I've tried various methods but can't get anything to work! I'm not too familiar with extends and implements but if I was shown to add one action listener it would a massive help. thanks in advance

    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    import java.io.IOException;
    import javax.swing.event.*;

    public class wordDictionary
    {
    public static void main(String [] args)
    {
    wordDictionary aFrame = new wordDictionary();
    }

    public wordDictionary()
    {
    JFrame aFrame = new JFrame();
    Container contentPane;
    aFrame.setTitle("Word Dictionary");
    aFrame.setResizable(false);
    aFrame.setSize(400, 300);

    aFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLO SE);
    aFrame.setVisible(true);
    JMenuBar menuBar = new JMenuBar();
    //Menu Items
    JMenu analyseText = new JMenu("Analyse Text");
    JMenu dictionary = new JMenu("Dictionary");
    JMenu statistics = new JMenu("Statistics");
    JMenu exit = new JMenu("Exit");

    // Dictionary Menu Items
    JMenuItem addWord = new JMenuItem("Add Word");
    JMenuItem deleteWord = new JMenuItem("Delete Word");
    JMenuItem searchWord = new JMenuItem("Search");
    JMenuItem listEntries = new JMenuItem("List Entries");

    //Statistic menu items
    JMenuItem wordCount = new JMenuItem("Word Count");
    JMenuItem palindromes = new JMenuItem("Palindromes");
    JMenuItem longestWord = new JMenuItem("Longest Word");
    JMenuItem shortestWord = new JMenuItem("Shortest Word");
    JMenuItem alphabeticFreq = new JMenuItem("Alphabetic Frequency");

    //add listeners
    //MenuListener listener = new MenuListener();
    //deleteWord.addMenuListener(this);

    menuBar.add(analyseText);
    menuBar.add(dictionary);
    menuBar.add(statistics);
    menuBar.add(exit);

    //Add items to dictionary menu
    dictionary.add(addWord);
    dictionary.add(deleteWord);
    dictionary.add(searchWord);
    dictionary.add(listEntries);

    //Add items to statistics menu
    statistics.add(wordCount);
    statistics.add(palindromes);
    statistics.add(longestWord);
    statistics.add(shortestWord);
    statistics.add(alphabeticFreq);



    //Set menu bar for JFrame
    aFrame.setJMenuBar(menuBar);
    }

    private class addWord extends JMenuItem implements ActionListener
    {
    public addWord(String text)

    {

    addWord.addActionListener(this);
    }
    public void actionPerformed(ActionEvent e)
    {
    System.out.println("Item clicked: "+e.getActionCommand());
    }

    }
    }


  2. #2
    Super Moderator curmudgeon's Avatar
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    Default Re: JMenuItem action Listener

    You'll find example code and explanation here: Swing Menu Tutorial

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