Here you can find the source of setComponentSize(int width, int height, JComponent l)
public static void setComponentSize(int width, int height, JComponent l)
//package com.java2s; /*/*w ww .j ava 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 void setComponentSize(int width, int height, JComponent l) { l.setPreferredSize(new Dimension(width, height)); l.setMinimumSize(new Dimension(width, height)); if (l instanceof JTextField || l instanceof JComboBox) { l.setMaximumSize(new Dimension(Short.MAX_VALUE, height)); } } }