Layout (Marcus Green)

[Yuki Cho]

i was wondering why buttons will run from left to right along the top of the frame. I thought the buttons will stay at the button since the layout has been set to the south initially at line 12. Do i need a validate() to apply borderlayout follow by flowlayout? pleaseeeee help.
thanks, yuki
import java.awt.*;
public class CompLay extends Frame{
public static void main(String argv[]){
CompLay cl = new CompLay();
}
CompLay(){
Panel p = new Panel();
p.setBackground(Color.pink);
p.add(new Button("One"));
p.add(new Button("Two"));
p.add(new Button("Three"));
add("South",p); //12
setLayout(new FlowLayout());
setSize(300,300);
setVisible(true);
}
}

[Jane Griscti]

Hi Yuki,
The statement <code>setLayout(new FlowLayout())</code> effectively sets the layout manager for the current <code>CompLay</code> object; this replaces the original default layout of <code>BorderLayout</code>.
When the container is sized, the <code>FlowLayout</code> manager queries the container for a list of it's components; in this case, one, <code>Panel p</code> which it displays. The previous statement of <code>add("South",p)</code> has no meaning for the <code>FlowLayout</code>.
To see the results you expected, comment out <code>setLayout</code>. You do not need to <code>validate()</code>. The <code>Panel</code>'s default layout is <code>FlowLayout</code>
Hope that helps.
------------------
Jane Griscti
Sun Certified Programmer for the Java� 2 Platform

[Yuki Cho]

Thanks Jane, i got it now!
-Yuki