How to obtain text from Selected Menus

[jecarfor]

Hi there!!!

I need to get the current selection path from a JMenuItem, but i need this information to show as a String, let me give you an example (just an example no)

Let's say my JMenuBar with the following JMenus

-2006
-2007

and I added some JMenus to 2007 Menu,

-French
-German

so now I have

-2006
-2007-French
-German

then I finally added the JMenuItems to French

-Level 1
-Level 2

So my whole JmenuBar has the following menus

-2006
-2007-French
-German-Level 1
-Level 2

So, if I Select Level 2 i want to get the selection path "2007 German Level 1" and show the selection as the JFrame Title.

I show you my code (not the whole code) as example of the program I'm bulding. I explained all this because some parts of my code are in Spanish

The Title of the jFrame I want to set is jfSelection

public class saberpro implements ActionListener{

    //Creación Frame
    JFrame jfSaberPro = new JFrame("Saber Pro");
    JFrame jfSelection;

    //Creación JPanel
    JPanel jpSaberPro = new JPanel();

    //Creacion String de Titulo Frame Selection
    String StringField;

    //Años en Arrays
    JMenuItem jmiYear[][] = new JMenuItem[16][6];

    //Creacion JTextFields
    JTextField
        jtfPart = new JTextField(15),
        jtfProg = new JTextField(18),
        jtfPercent = new JTextField(13),
        jtfResult = new JTextField(15);

private void pvElements(){

    //JMenu en Array
    JMenu jmArea[] = new JMenu[8];

    //Creación JMenus Principales
    jmArea[0]= new JMenu("Matemáticas");jmArea[0].setMnemonic(KeyEvent.VK_M);
    jmArea[1] = new JMenu("Algoritmos y Estructura de Datos");jmArea[1].setMnemonic(KeyEvent.VK_A);
    jmArea[2] = new JMenu("Bases de Datos");jmArea[2].setMnemonic(KeyEvent.VK_B);
    jmArea[3] = new JMenu("Ingenieria de Software");jmArea[3].setMnemonic(KeyEvent.VK_S);
    jmArea[4] = new JMenu("Redes");jmArea[4].setMnemonic(KeyEvent.VK_R);
    jmArea[5] = new JMenu("Ética Social");jmArea[5].setMnemonic(KeyEvent.VK_T);
    jmArea[6] = new JMenu("Introducción a Computadores");jmArea[6].setMnemonic(KeyEvent.VK_C);
    jmArea[7] = new JMenu("Inglés");jmArea[7].setMnemonic(KeyEvent.VK_I);

    //Adición JMenus a JMenuBar a travez de un For Loop
    for(int nIncArea = 0;nIncArea<=7;nIncArea=nIncArea+1){
    jmbSaberPro.add(jmArea[nIncArea]);
    }

    //JMenu Sistema y Electronica
    JMenu jmSistema[] = new JMenu[8];
    JMenu jmElectronica[] = new JMenu[8];

    //Creación JMenus Sistema travez de un For Loop
    for(int nIncSis = 0;nIncSis<=7;nIncSis=nIncSis+1){
    jmSistema[nIncSis] = new JMenu("Sistema");jmSistema[nIncSis].setMnemonic(KeyEvent.VK_T);}

    //Creación JMenus Electronica a travez de un For Loop
    for(int nIncEl = 0;nIncEl<=7;nIncEl=nIncEl+1){
    jmElectronica[nIncEl] = new JMenu("Electronica");jmElectronica[nIncEl].setMnemonic(KeyEvent.VK_E);}

    //Adición Sistema y Electronica A Areas a traves de un for Loop
    for(int nIncAdArea = 0;nIncAdArea<=7;nIncAdArea=nIncAdArea+1){
    jmArea[nIncAdArea].add(jmSistema[nIncAdArea]);
    jmArea[nIncAdArea].add(jmElectronica[nIncAdArea]);
    }

    //Creación JMenuItems Años
    for(int nYearList=0;nYearList<=15;nYearList = nYearList+1){
    jmiYear[nYearList][0] = new JMenuItem("2005", KeyEvent.VK_5);
    jmiYear[nYearList][1] = new JMenuItem("2006", KeyEvent.VK_6);
    jmiYear[nYearList][2] = new JMenuItem("2007", KeyEvent.VK_7);
    jmiYear[nYearList][3] = new JMenuItem("2009", KeyEvent.VK_9);
    jmiYear[nYearList][4] = new JMenuItem("2010", KeyEvent.VK_1);
    }
    //jmSistema[0].add(jmiYear[0]);
    
    //Addición Años a Sistema y Electronica
    for(int nYearListAdd=0;nYearListAdd<=7;nYearListAdd = nYearListAdd+1)
        for(int nYearItemAdd=0;nYearItemAdd<=4;nYearItemAdd = nYearItemAdd+1){
            jmSistema[nYearListAdd].add(jmiYear[nYearListAdd][nYearItemAdd]);
            jmiYear[nYearListAdd][nYearItemAdd].addActionListener(this);        ;
            jmElectronica[nYearListAdd].add(jmiYear[nYearListAdd+8][nYearItemAdd]);
            jmiYear[nYearListAdd+8][nYearItemAdd].addActionListener(this);
        }

    //Adición del JPanel al JFrame
    jfSaberPro.add(jpSaberPro);

    //Adición JMenuBar a JPanel
    jpSaberPro.add(jmbSaberPro);

    //Tamaño JFrame
    jfSaberPro.setSize(900,200);

    //Fijar JFrame y JPanel como visibles y a su vez mostrarlos, Bloquear Redimension
    jfSaberPro.setVisible(true);
    jfSaberPro.setResizable(false);
    jpSaberPro.setVisible(true);
    jfSaberPro.show();

    //Cerrar al dar clic en Botón Cerrar
    jfSaberPro.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

[DarrylBurke]

See the API for MenuSelectionManager.

import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class Breadcrumbs {

  JFrame frame = new JFrame();
  MenuSelectionManager manager = MenuSelectionManager.defaultManager();

  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {

      @Override
      public void run() {
        new Breadcrumbs().makeUI();
      }
    });
  }

  public void makeUI() {
    JMenuItem level1 = new JMenuItem("Level 1");
    JMenuItem level2 = new JMenuItem("Level 2");
    JMenu french = new JMenu("French");
    french.add(level1);
    french.add(level2);
    JMenu german = new JMenu("German");
    JMenu m2007 = new JMenu("2007");
    m2007.add(french);
    m2007.add(german);
    JMenu m2006 = new JMenu("2006");
    JMenuBar menuBar = new JMenuBar();
    menuBar.add(m2006);
    menuBar.add(m2007);
    frame.setJMenuBar(menuBar);

    manager.addChangeListener(new ChangeListener() {

      @Override
      public void stateChanged(ChangeEvent e) {
        MenuElement[] path = manager.getSelectedPath();
        StringBuilder title = new StringBuilder();
        for (MenuElement element : path) {
          if (element instanceof JMenuItem) {
            title.append(((JMenuItem) element).getText()).append(" ");
          }
        }
        frame.setTitle(title.toString().trim());
      }
    });

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(400, 200);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }
}

db