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Java example source code file (UITest.java)

This example Java source code file (UITest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

aqua, awt, gtk, gui, lookandfeelinfo, macosx, not, ostype, runtimeexception, swing, uitest, windows

The UITest.java Java example source code

/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 4843282 4886871
 * @summary Makes sure windows is only listed on Windows platform, and
 *          GTK is not on Windows and Mac.
 * added as tabs
 * @author Scott Violet
 */
import javax.swing.*;
import javax.swing.UIManager.LookAndFeelInfo;
import sun.awt.OSInfo;
import sun.awt.OSInfo.OSType;

public class UITest {

    public static void main(String[] args) {
        OSType os = OSInfo.getOSType();
        LookAndFeelInfo[] lafInfo = UIManager.getInstalledLookAndFeels();

        switch (os) {
            case WINDOWS:

                // Make sure we don't have GTK.
                if (hasLAF("gtk", lafInfo)) {
                    throw new RuntimeException("On windows, but GTK is present");
                }

                // Make sure we don't have Aqua.
                if (hasLAF("mac", lafInfo)) {
                    throw new RuntimeException("On windows, but Aqua is present");
                }

                // Make sure we have Windows.
                if (!hasLAF("windows", lafInfo)) {
                    throw new RuntimeException("On windows and don't have Windows");
                }

                break;

            case MACOSX:

                // Make sure we don't have GTK.
                if (hasLAF("gtk", lafInfo)) {
                    throw new RuntimeException("On mac, but GTK is present");
                }

                // Make sure we don't have Windows.
                if (hasLAF("windows", lafInfo)) {
                    throw new RuntimeException("On mac, but Windows is present");
                }

                // Make sure we have Aqua.
                if (!hasLAF("mac", lafInfo)) {
                    throw new RuntimeException("On mac and don't have Aqua");
                }

                break;

            default:
                // Not windows and mac

                // Make sure we don't have Windows.
                if (hasLAF("windows", lafInfo)) {
                    throw new RuntimeException("Not on windows and have Windows");
                }

                // Make sure we don't have Aqua.
                if (hasLAF("mac", lafInfo)) {
                    throw new RuntimeException("Not on mac and have Aqua");
                }

                // Make sure we have GTK.
                if (!hasLAF("gtk", lafInfo)) {
                    throw new RuntimeException(
                            "Not on Windows and Mac and don't have GTK!");
                }
        }

    }

    public static boolean hasLAF(String name, LookAndFeelInfo[] lafInfo) {

        for (int counter = 0; counter < lafInfo.length; counter++) {
            if (lafInfo[counter].getName().toLowerCase().indexOf(name) != -1) {
                return true;
            }
        }
        return false;
    }
}

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