In the following test case, instead of pushing the button, just
resize the frame slightly, and notice that the components are
laid out nearer to the top of the frame.

////////////////////////////////////////////////////////////////////////////
//
// @(#)ChoiceSize.java 1.2 26 Oct 1995 14:53:04
//
// Copyright 26 Oct 1995 Sun Microsystems, Inc. All Rights Reserved
//
////////////////////////////////////////////////////////////////////////////

package test;
import java.awt.*;

public class ChoiceSize extends Frame {

public static void main(String[] args) {
    ChoiceSize w = new ChoiceSize();
    w.init();
}

private Panel panel;
private Button b;
private Choice choice;

public void init() {
    setLayout(new FlowLayout());

    choice = new Choice();
    choice.addItem("Eat");
    choice.addItem("Sleep");
    add(choice);

    b = new Button("Push Me");
    add(b);
    resize(300, 100);
    show();
}

public boolean action(Event e, Object o) {
    if (e.target==b) {
choice.addItem("Kowabunga, dudes!");
return true;
    } else {
return false;
    }
}

}