JDK Version: 1.2beta4-G
OS: Soalris 2.6
Locale: zh, C

Frame's pack() method sometimes make the frame just in the smallest size.
Following is a program to reproduce it.

===============================CheckPack.java=============================
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class CheckPack {
   
   Choice choice1;
   Choice choice2;
   Choice choice3;
   int itemCount = 0;

   public static void main(String args[]) {
       if (args.length < 1) {
           System.out.println("Please type: java CheckPack n");
           System.out.println(" n should be an integer");
return;
       }
       for (int i = 0; i < Integer.parseInt(args[0]); i ++) {
           new CheckPack(i);
}
   }

   public CheckPack(int k) {
       Frame f = new Frame("Check Choice");
       f.setLayout(new BorderLayout());
       choice1 = new Choice();
       choice2 = new Choice();
       choice3 = new Choice();
       f.add(choice1, BorderLayout.NORTH);
       f.add(choice3, BorderLayout.CENTER);
       f.add(choice2, BorderLayout.SOUTH);
       setData();
       f.setLocation(k * 30, k * 30);
       f.pack();
       f.show();
   }

   public void setData() {
       if (choice1 != null && itemCount < 20) {
for (int i = 0; i < 20; i ++) {
               choice1.add("I am Choice, yes I am : " + itemCount * itemCount);
               choice2.add("I am the same, yes I am : "+ itemCount * itemCount);
               choice3.add("I am the same, yes I am : "+ itemCount * itemCount);
}
            itemCount = 20;
       }
    }
}

===============================================================================

save this file
javac CheckPack.java
java CheckPack 10
you will see this problem



jim.hu@prc 1998-05-22