How to open new JFrame with JButton from different class

Question

So I've tried to make a button open a JFrame from a different class as well as from within the same class just as part of a different method and I'm totally lost. Here's the code. The instances where I am first trying to make a button open a new JFrame is at the "mal" and "fem" Action Listeners.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class InteractiveName {
public String name = "blank";
public String gender = "blank";
public InteractiveName()
{
    frame1();
    frame2();
    frame3();
}

public void frame1(){


    JFrame j = new JFrame("Interactive Person Identifier");
    JPanel p = new JPanel(new GridBagLayout());
    JButton mal = new JButton("Male");
    JButton fem = new JButton("Female");


    j.setSize(400,400);
    j.setVisible(true);
    j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    j.setLocationRelativeTo(null);
    GridBagConstraints c = new GridBagConstraints();

    c.insets = new Insets(40,40,40,40);

    c.gridx = -2;
    c.gridy = 0;
    p.add(mal,c);

    c.gridx = 2;
    c.gridy = 0;
    p.add(fem,c);

    mal.addActionListener(new ActionListener(){

        public void actionPerformed(ActionEvent e){
            gender = "male";

        }



    });

    fem.addActionListener(new ActionListener(){

        public void actionPerformed(ActionEvent e){
            gender = "female";
            j2.setVisible(true);


        }



    });

    j.add(p, BorderLayout.SOUTH);
}

public void frame2(){

    JFrame j2 = new JFrame("Interactive Person Identifier");
    JPanel p2 = new JPanel(new GridBagLayout());
    JButton conf = new JButton("Confirm");
    JTextField nameinput = new JTextField();



    j2.setVisible(false);
    j2.setSize(400, 400);
    j2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    j2.setLocationRelativeTo(null);
    GridBagConstraints c2 = new GridBagConstraints();


    c2.insets = new Insets(40,40,40,40);

    j2.add(p2, BorderLayout.SOUTH);

    c2.gridx = 0;
    c2.gridy = 2;       
    p2.add(nameinput, c2);

    c2.gridx = 0;
    c2.gridy = 0;
    p2.add(conf,c2);

    conf.addActionListener(new ActionListener(){

        public void actionPerformed(ActionEvent ae){

             name = nameinput.getText();


        }



    });




}


public void frame3(){

    JFrame f3 = new JFrame("Confirmation");
    JPanel p3 = new JPanel(new GridBagLayout());
    JButton yes = new JButton("Yes");
    JButton no = new JButton("No");
    JLabel thankyou = new JLabel("Thank you for your participation. Is the above information correct?");
    JLabel info = new JLabel("You are a " + gender + ". You name is "+name+".");

    f3.setVisible(false);
    f3.setSize(400,400);
    f3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f3.setLocationRelativeTo(null);
    f3.add(p3);


    GridBagConstraints c3 = new GridBagConstraints();

    c3.insets = new Insets(40,40,40,40);

    c3.gridx = -3;
    c3.gridy = -2;
    p3.add(yes,c3);

    yes.addActionListener(new ActionListener(){

        public void actionPerformed( ActionEvent aae){

            JOptionPane.showMessageDialog(null, "This program is over");
            System.exit(0);
        }

    });

    no.addActionListener(new ActionListener(){


        public void actionPerformed(ActionEvent aeeee){

            JOptionPane.showMessageDialog(null, "You're an idiot, have fun starting over.");
            System.exit(0);


        }

    });


    c3.gridx = -3;
    c3.gridy = 2;
    p3.add(no,c3);

    c3.gridx = 0;
    c3.gridy = 0;
    p3.add(info,c3);

    c3.gridx = 0;
    c3.gridy = -1;
    p3.add(thankyou,c3);


}






}

See also [The Use of Multiple JFrames, Good/Bad Practice?](http://stackoverflow.com/q/9554636/418556) — Andrew Thompson, Dec 20 '14 at 11:31
`JButton mal = new JButton("Male"); JButton fem = new JButton("Female");` these should be `JRadioButton` objects in a [`ButtonGroup`](https://docs.oracle.com/javase/8/docs/api/javax/swing/ButtonGroup.html).. — Andrew Thompson, Dec 20 '14 at 11:34

hermit · Answer 1 · 2014-12-20T13:03:59.220

One approach to initialize the JFrame from the same class:

import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;

public class Try extends JFrame implements ActionListener{

    JButton button=new JButton("Button");
    public Try(){
      setLayout(new FlowLayout());
      button.addActionListener(this);
      add(button);
    }

public void actionPerformed(ActionEvent event){
    JFrame newFrame=new JFrame();
    newFrame.setVisible(true);
    newFrame.setSize(new Dimension(500,400));
    }

public static void main(String[] args) {

    Try t=new Try();
    t.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    t.setVisible(true);
    t.setSize(new Dimension(500,400));  
 }

}

You can add an action listener to the button in the first frame and inside the actionPerformed method,initialize another frame. Thanks.

score 0 · Answer 2 · answered Dec 20 '14 at 11:12

All you have to do is add an ActionListener to the JButton, once clicked you can simply instantiate the new frame. Something similar to this:

  fem.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent e){
        dispose();

        SwingUtilities.invokeLater(new Runnable() {
        public void run() {
          MyNewFreame newFrame = new MyNewFrame();
          newFrame.setVisible(true);
        }
        });

    }
 });

Obviously whatever you want to do once the actionPerformed occurs is entirely up to you. If you don't understand something, just ask.

score 0 · Answer 3 · answered Dec 20 '14 at 11:14

0

A quick fix would be adding the implements ActionListener next to the public class.

The class usually recognizes the ActionListener as soon as you run it.

answered Dec 20 '14 at 11:14

CA1K

35
8

score 0 · Answer 4 · answered Dec 20 '14 at 13:15

Try this one. I run this code in Netbeans and it works well.

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

public class NewJFrame extends javax.swing.JFrame {

public NewJFrame() {
    initComponents();
    frame1();
}



// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() {

    jTextField1 = new javax.swing.JTextField();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

    jTextField1.setText("jTextField1");

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addGap(140, 140, 140)
            .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 96, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap(164, Short.MAX_VALUE))
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addContainerGap(169, Short.MAX_VALUE)
            .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(111, 111, 111))
    );

    pack();
}// </editor-fold>                        


public String name = "blank";
public String gender = "blank";


public void frame1(){


JFrame j = new JFrame("Interactive Person Identifier");
JPanel p = new JPanel(new GridBagLayout());
JButton mal = new JButton("Male");
JButton fem = new JButton("Female");


j.setSize(400,400);
j.setVisible(true);
j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
j.setLocationRelativeTo(null);
GridBagConstraints c = new GridBagConstraints();

c.insets = new Insets(40,40,40,40);

c.gridx = -2;
c.gridy = 0;
p.add(mal,c);

c.gridx = 2;
c.gridy = 0;
p.add(fem,c);

mal.addActionListener(new ActionListener(){

    public void actionPerformed(ActionEvent e){
        gender = "male";
        frame2();
    }

});

fem.addActionListener(new ActionListener(){

    public void actionPerformed(ActionEvent e){
        gender = "female";
        frame2();
    }

});

j.add(p, BorderLayout.SOUTH);
}

public void frame2(){

JFrame j2 = new JFrame("Interactive Person Identifier");
JPanel p2 = new JPanel(new GridBagLayout());
JButton conf = new JButton("Confirm");
JTextField nameinput = new JTextField();

 nameinput.setPreferredSize(new Dimension(200, 40));
j2.setVisible(true);
j2.setSize(400, 400);
j2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
j2.setLocationRelativeTo(null);
GridBagConstraints c2 = new GridBagConstraints();


c2.insets = new Insets(40,40,40,40);

j2.add(p2, BorderLayout.SOUTH);

c2.gridx = 0;
c2.gridy = 2;       
p2.add(nameinput, c2);

c2.gridx = 0;
c2.gridy = 0;
p2.add(conf,c2);

conf.addActionListener(new ActionListener(){

    public void actionPerformed(ActionEvent ae){

         name = nameinput.getText();
frame3();

    }

});

}


public void frame3(){

JFrame f3 = new JFrame("Confirmation");
JPanel p3 = new JPanel(new GridBagLayout());
JButton yes = new JButton("Yes");
JButton no = new JButton("No");
JLabel thankyou = new JLabel("Thank you for your participation. Is the above information correct?");
JLabel info = new JLabel("You are a " + gender + ". You name is "+name+".");

f3.setVisible(true);
f3.setSize(600,400);
f3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f3.setLocationRelativeTo(null);
f3.add(p3);
info.setPreferredSize(new Dimension(600, 20));
thankyou.setPreferredSize(new Dimension(600, 20));
GridBagConstraints c3 = new GridBagConstraints();

c3.insets = new Insets(40,40,40,40);

c3.gridx = -3;
c3.gridy = -2;
p3.add(yes,c3);

yes.addActionListener(new ActionListener(){

    public void actionPerformed( ActionEvent aae){

        JOptionPane.showMessageDialog(null, "This program is over");
        System.exit(0);
    }

});

no.addActionListener(new ActionListener(){


    public void actionPerformed(ActionEvent aeeee){

        JOptionPane.showMessageDialog(null, "You're an idiot, have fun starting over.");
        System.exit(0);


    }

});


c3.gridx = -3;
c3.gridy = 2;
p3.add(no,c3);

c3.gridx = 0;
c3.gridy = 0;
p3.add(info,c3);

c3.gridx = 0;
c3.gridy = -1;
p3.add(thankyou,c3);


}


public static void main(String args[]) {
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new NewJFrame().setVisible(false);

        }
    });
}

// Variables declaration - do not modify                     
private javax.swing.JTextField jTextField1;
// End of variables declaration                   
}

How to open new JFrame with JButton from different class

4 Answers4