Method run

LabEnv/09Lab/BoggleGame.java:960–1005

()

        
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                int rows = 0;
                int cols = 0;
                if (args.length == 0) {
                    rows = 4;
                    cols = 4;
                }
                else if (args.length == 1) {
                    try {
                        rows = Integer.parseInt(args[0]);
                        cols = rows;
                    }
                    catch (NumberFormatException e) {
                        System.err.println("Usage: java BoggleGame " +
                                           "\nor:    java BoggleGame [rows]" +
                                           "\nor:    java BoggleGame [rows] [cols]");
                        System.exit(1);
                    }
                }
                else if (args.length == 2) {
                    try {
                        rows = Integer.parseInt(args[0]);
                        cols  = Integer.parseInt(args[1]);
                    }
                    catch (NumberFormatException e) {
                        System.err.println("Usage: java BoggleGame " +
                                           "\nor:    java BoggleGame [rows]" +
                                           "\nor:    java BoggleGame [rows] [cols]");
                        System.exit(1);
                    }
                }
                else {
                    System.err.println("Usage: java BoggleGame " +
                                       "\nor:    java BoggleGame [rows]" +
                                       "\nor:    java BoggleGame [rows] [cols]");
                    System.exit(1);
                }

                if (rows <= 0 || cols <= 0) {
                    throw new java.lang.IllegalArgumentException("Rows and columns must be positive" + 
                                                                 "\nUsage: java BoggleGame " +
                                                                 "\nor:    java BoggleGame [rows]" +
                                                                 "\nor:    java BoggleGame [rows] [cols]");
                }
                new BoggleGame(rows, cols).setVisible(true);
            }
        });
    }