JFrame layout help

Hi, now I get the layout. But it gets very small. Why is this?

import java.awt.Color;

import java.awt.Dimension;

import javax.swing.BoxLayout;

import javax.swing.JPanel;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTree;

public class TestCheckboxTree extends JFrame

{

public TestCheckboxTree()

{

super("Testing Checkboxes on JTree!");

JScrollPane scrollpane = new JScrollPane();

scrollpane.setPreferredSize(new Dimension(300, 300));

scrollpane.setAlignmentX(LEFT_ALIGNMENT);

JPanel panel = new JPanel();

panel.setBackground(Color.WHITE);

panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

JTree tree = CheckboxTree.makeCheckTree(new FolderTree("/home/"));

JTree tree2 = CheckboxTree.makeCheckTree(new FolderTree("/home/rejeep/programming"));

panel.add(tree);

panel.add(tree2);

scrollpane.getViewport().add(panel);

add(scrollpane);

setDefaultCloseOperation(EXIT_ON_CLOSE);

setSize(500, 500);

setVisible(true);

}

public static void main(String args[])

{

new TestCheckboxTree();

}

}

rejeepa at 2007-7-12 1:19:24 >