Input Display

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posted 19 years ago

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I don't want to use the JOptionPane.showInputDiag method to input a username. How else can I do this from within my main class ? I have tried inner class without any success

thx

jonas

Gregg Bolinger

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posted 19 years ago

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How else do you want to do this? Is this a GUI application? Would you prefer getting the username from the console? Can you be more specific with your question?

jonas okwara

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posted 19 years ago

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To be explicit, I am doing a GUI application with a "start" button among others. Once the "start" button is clicked, another gui jumps out and asks for a username and subject. I have done this with a JOptionPane method but wish I could be more expressive with another frame. however this has proved to be difficult.

thanks

newbie

Gregg Bolinger

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posted 19 years ago

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The easiest thing to do is create a JDialog. It's basically a JFrame that can be modal (when it's open, the other application frames are inaccessable). You can add any component to it that you want, just like a JFrame.

Take a look at the Dialog tutorial on Sun's Swing Tutorial. It will show you how to use the JDialog class.

Michael Dunn

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posted 19 years ago

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Here's something to play around with (it's rough)

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
class GUIapplication extends JFrame implements ActionListener
{
  String userName = "";
  String subject = "";
  JButton btn = new JButton("Start");
  JLabel lbl = new JLabel();
  public GUIapplication()
  {
    super("GUIapplication");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(300,125);
    setLocation(300,200);
    Container frame = getContentPane();
    JPanel jp = new JPanel(new BorderLayout());
    setLabelText();
    btn.addActionListener(this);
    jp.add(lbl,BorderLayout.CENTER);
    jp.add(btn,BorderLayout.SOUTH);
    frame.add(jp);
  }
  public void setLabelText()
  {
    lbl.setText("<html>Username : "+userName+"<br><br>Subject  : "+subject+"</html>");
  }
  public void actionPerformed(ActionEvent ae)
  {
    this.setVisible(false);
    new LoginForm(this).setVisible(true);
  }
  public static void main(String args[]){new GUIapplication().setVisible(true);}
}
 
class LoginForm extends JFrame implements ActionListener
{
  JLabel lblName = new JLabel("User Name");
  JLabel lblSubject = new JLabel("Subject      ");
  JTextField tfName = new JTextField(10);
  JTextField tfSubject = new JTextField(10);
  JButton okBtn = new JButton("OK");
  GUIapplication mainForm;
  public LoginForm(GUIapplication mf)
  {
    setLocation(300,200);
    setUndecorated(true);
    Container frame = getContentPane();
    okBtn.addActionListener(this);
    JPanel jp = new JPanel(new BorderLayout());
    JPanel top = new JPanel(new FlowLayout(FlowLayout.LEFT));
    JPanel mid = new JPanel(new FlowLayout(FlowLayout.LEFT));
    JPanel bottom = new JPanel(new FlowLayout(FlowLayout.CENTER));
    top.add(lblName);
    top.add(tfName);
    mid.add(lblSubject);
    mid.add(tfSubject);
    bottom.add(okBtn);
    jp.add(top,BorderLayout.NORTH);
    jp.add(mid,BorderLayout.CENTER);
    jp.add(bottom,BorderLayout.SOUTH);
    frame.add(jp);
    pack();
    mainForm = mf;
  }
  public void actionPerformed(ActionEvent ae)
  {
    mainForm.userName = tfName.getText();
    mainForm.subject = tfSubject.getText();
    mainForm.setLabelText();
    mainForm.setVisible(true);
    this.dispose();
  }
}

jonas okwara

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Posts: 58

posted 19 years ago

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Remember to be nice to people on your way up for you might meet them on your way down

Thx

Folks

Don't get me started about those stupid light bulbs.