layout flow/border

[Jason sigel]

[I]
import java.awt.*;
import java.io.*;
public class mframe extends Frame{
Button bn,bs,be,bw,bc;
public mframe(){ 
super("Java"); 
Button bn = new Button("North"); 
Button bs = new Button("South"); 
Button be = new Button("East"); 
Button bw = new Button("West"); 
Button bc = new Button("Center");
setLayout(new FlowLayout()); 
//add(bn); add(bs); add(be); add(bn); add(bn);}
try{ 
add("North",bn);
setSize(300,300); 
setVisible(true); 
System.out.println("Added north and sleepling");
Thread.sleep(2000); 
add("East",be); 
setSize(300,300); 
setVisible(true); 
System.out.println("Added East and sleepling"); Thread.sleep(2000); 
add("South",bn); 
setSize(300,300); 
setVisible(true); 
System.out.println("Added South and sleepling"); Thread.sleep(2000); 
add("West",bw); 
setSize(300,300); 
setVisible(true); 
System.out.println("Added West and sleepling"); Thread.sleep(2000); 
add("Center",bc); 
setSize(300,300); 
setVisible(true); 
System.out.println("Added Center and sleepling"); Thread.sleep(2000); }
// catch(InterruptedException e) {}
}
public static void main(String args[]){ 
new mframe();
} }
[/I]

and

[I]
import java.awt.*;
import java.io.*;
public class mframe1 extends Frame{
Button bn,bs,be,bw,bc;
public mframe1(){ 
super("java"); 
Button bn = new Button("North"); 
Button bs = new Button("South"); 
Button be = new Button("East"); 
Button bw = new Button("West"); 
Button bc = new Button("Center");
setLayout(new FlowLayout()); 
add(bn); add(bs); add(be); add(bn); add(bn);}

public static void main(String args[]){ 
new mframe1();
} }
[/I]

/*
here nothing happens untill I store new mframe1() object is frame f object and call f.show().
frame f=new mframe1();
f.show();
please explain it to me.Is it due to layout as in border layout I don't have to add f.show.
*/

Do layout have different initialization format.
jaideep

[scott irwin]

Window, Frame and Dialog default to invisible, while all other components default to visible (like buttons). In your first example, you called setVisible(true) which was on the Frame you extended.
The show method makes a window visible AND brings it to the front. In your second example, you did not make the frame visible by either method.

[Steve Fahlbusch]

"SpaceBunny", take a look at this link:
http://www.javaranch.com/ubb/Forum10/HTML/000180.html