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JFrame

2 replies on 1 page. Most recent reply: Jun 14, 2003 4:05 PM by Chris Dailey

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jack

Posts: 3
Nickname: mendo
Registered: Jun, 2003

JFrame Posted: Jun 14, 2003 11:09 AM
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i have a class that extends JFrame, With all the Textfields and buttons.

when i run that program, i always have to resize (drag the mouse) the frame to view the components, otherwise, no components will appear. What can i do?

The code of my program:


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



public class AddEng extends JFrame{

JLabel no, name, des, date;
JTextField nof, namef, desf, datef;
JButton update, exit;


public AddEng()
{
super("Add new Eng");
Container con = getContentPane();
con.setLayout(new FlowLayout());



no = new JLabel("Eng Code: ");
con.add(no);

nof = new JTextField(5);
con.add(nof);

name = new JLabel("Company name: ");
con.add(name);
namef = new JTextField(30);
con.add(namef);
}



public static void main(String [] args) {
AddEng f = new AddEng();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}


}


Nguyentong ThyVu

Posts: 1
Nickname: thyvubtr
Registered: Apr, 2003

Re: JFrame Posted: Jun 14, 2003 1:44 PM
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u not setSize for ur Frame.
let set size for your frame, and run it again

in when first create a jframe ex: myJFrame set Size for it
myJFrame.setSize(400,500);
or
# import java.awt.*;
in main method add:
myJFame.setSize(new Dimension(400,500));

Chris Dailey

Posts: 56
Nickname: mouse
Registered: Dec, 2002

Re: JFrame Posted: Jun 14, 2003 4:05 PM
Reply to this message Reply
The second option (other than explicitly setting the size) is to use the "pack" method on JFrame (which actually comes from Frame and maybe from Window).

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