Source code

001///////////////////////////////////////////////////////////////////////////////////////////////
002// checkstyle: Checks Java source code and other text files for adherence to a set of rules.
003// Copyright (C) 2001-2025 the original author or authors.
004//
005// This library is free software; you can redistribute it and/or
006// modify it under the terms of the GNU Lesser General Public
007// License as published by the Free Software Foundation; either
008// version 2.1 of the License, or (at your option) any later version.
009//
010// This library is distributed in the hope that it will be useful,
011// but WITHOUT ANY WARRANTY; without even the implied warranty of
012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
013// Lesser General Public License for more details.
014//
015// You should have received a copy of the GNU Lesser General Public
016// License along with this library; if not, write to the Free Software
017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018///////////////////////////////////////////////////////////////////////////////////////////////
019
020package com.puppycrawl.tools.checkstyle.gui;
021
022import java.io.File;
023
024import javax.swing.SwingUtilities;
025import javax.swing.WindowConstants;
026
027/**
028 * Entry point for starting the checkstyle GUI.
029 *
030 */
031public final class Main {
032
033 /** Hidden constructor of the current utility class. */
034 private Main() {
035 // no code
036 }
037
038 /**
039 * Entry point.
040 *
041 * @param args the command line arguments.
042 */
043 public static void main(final String... args) {
044 SwingUtilities.invokeLater(() -> {
045 createMainFrame(args);
046 });
047 }
048
049 /**
050 * Helper method to create the {@code MainFrame} instance.
051 *
052 * @param args the command line arguments
053 */
054 private static void createMainFrame(String... args) {
055 final MainFrame mainFrame = new MainFrame();
056 if (args.length > 0) {
057 final File sourceFile = new File(args[0]);
058 mainFrame.openFile(sourceFile);
059 }
060 mainFrame.setTitle("Checkstyle GUI");
061 mainFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
062 mainFrame.pack();
063 mainFrame.setVisible(true);
064 }
065
066}