How to Resize the container with many component? and the component will vary according with the size of container?

[lxianfeng]

[knight_qmh]

public class Example extends Frame implements LayoutManager {
Dimension origin = new Dimension(0, 0);

public void init()
{
Button showButton = new Button("Show");
Button fetchButton = new Button("Fetch");
Button queryButton = new Button("Query");
add(showButton);
add(fetchButton);
add(queryButton);
}

public Dimension preferredLayoutSize(Container c){return origin;}
public Dimension minimumLayoutSize(Container c){return origin;}
public void addLayoutComponent(String s, Component c) {}
public void removeLayoutComponent(Component c) {}
public void layoutContainer(Container c) {
Rectangle b = c.getBounds();
int topHeight = 90;
int inset = 4;
showButton.setBounds(b.width-2*inset-120, inset, 120, 25);
fetchButton.setBounds(b.width-2*inset-120, 60, 120, 25);
query.setBounds(inset, inset, b.width-2*inset - 150, 80);
}

}