Here you can find the source of makeSameSize(JComponent[] comps)
public static final void makeSameSize(JComponent[] comps)
//package com.java2s; /**/*from w ww. j a v a 2 s . com*/ * $RCSfile$ * $Revision: 128 $ * $Date: 2004-10-25 20:42:00 -0300 (Mon, 25 Oct 2004) $ * * Copyright (C) 2004-2008 Jive Software. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.awt.*; import javax.swing.*; public class Main { public static final void makeSameSize(JComponent[] comps) { if (comps.length == 0) { return; } int max = 0; for (int i = 0; i < comps.length; i++) { int w = comps[i].getPreferredSize().width; max = w > max ? w : max; } Dimension dim = new Dimension(max, comps[0].getPreferredSize().height); for (int i = 0; i < comps.length; i++) { comps[i].setPreferredSize(dim); } } }