Launching a WindowApplication from another one in Java

Question

I have a WindowApplication in Java named Login with a button to get into a menu once the user has entered is proper data.

How could I make it launch it another WindowApplication whose name is Prueba?

Do I also have to remove the main() method from the new windows to be launcher?

My current try for the button listener is

btnLogin.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                frmAdministracinHospital.setVisible(false);
                new Prueba();
            }
        });

but it's not working

Prueba class:

package presentacion;

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import javax.swing.JComboBox;

public class Prueba {

    private JFrame frame;

    /**
     * Create the application.
     */
    public Prueba() {
        initialize();
    }

    /**
     * Initialize the contents of the frame.
     */

    private void initialize() {
        frame = new JFrame();
        frame.setBounds(100, 100, 450, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new JPanel();
        frame.getContentPane().add(panel, BorderLayout.CENTER);

        JComboBox comboBox = new JComboBox();
        panel.add(comboBox);
    }

}

Any suggestions?

Thanks in advance!

Either add the 'Prueba' Aplication as dependecy to your 'login' Application, and call its start (`main`) method manually. Or use a procesBuilder to start it through a command. Note however that the command must differ based on the OS to work! — n247s, Dec 16 '16 at 13:22
You have to make the `Prueba`'s frame visible : `frame.setVisible(true);` . — Arnaud, Dec 16 '16 at 13:28
i get that the method setVisible(true) doesn't exist @Berger — Ulises CT, Dec 16 '16 at 13:29
Yes I first thought `Prueba` was a `JFrame`, but it isn't. See my last comment . — Arnaud, Dec 16 '16 at 13:31
1) For better help sooner, post a [MCVE] or [Short, Self Contained, Correct Example](http://www.sscce.org/). 2) See [The Use of Multiple JFrames, Good/Bad Practice?](http://stackoverflow.com/q/9554636/418556) Note: A log-in should typically be displayed in a modal dialog or a `JOptionPane`. — Andrew Thompson, Dec 16 '16 at 13:32
but what do i have to before that? I mean, I should declare a JFrame, a Prueba instance or...? @Berger — Ulises CT, Dec 16 '16 at 13:34
All you have to do is to add `frame.setVisible(true);` at the end of your `initialize()` method, or at the end of your `Prueba()` constructor . — Arnaud, Dec 16 '16 at 13:35
it worked thanks! you can add it as answer if you wish @Berger — Ulises CT, Dec 16 '16 at 13:37

score 1 · Accepted Answer · answered Dec 16 '16 at 13:39

1

The frame of the Prueba class is never made visible .

All you have to do is to add frame.setVisible(true); at the end of your initialize() method, or at the end of your Prueba() constructor.

answered Dec 16 '16 at 13:39

Arnaud

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Launching a WindowApplication from another one in Java

1 Answers1