Here you can find the source of createVertBox(Component... comps)
public static Box createVertBox(Component... comps)
//package com.java2s; /*//from w ww . java 2s . co m * Xapp (pronounced Zap!), A automatic gui tool for Java. * Copyright (C) 2009 David Webber. All Rights Reserved. * * The contents of this file may be used under the terms of the GNU Lesser * General Public License Version 2.1 or later. * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. */ import javax.swing.*; import java.awt.*; public class Main { public static Box createVertBox(Component... comps) { return createBox(BoxLayout.PAGE_AXIS, comps); } public static Box createBox(int axis, Component... comps) { Box r = new Box(axis); for (Component comp : comps) { r.add(comp); } return r; } }