dk/abcdefghijklmnopqrstuvxyzæøå/bachelorizer/Main.java



package dk.abcdefghijklmnopqrstuvxyzæøå.bachelorizer;

import java.util.Arrays;

/// Bachelorizer - bachelor programme registrar
///
/// SPDX-License-Identifier: GPL-3.0-or-later
/// SPDX-FileCopyrightText: 2025 Jonas Smedegaard <dr@jones.dk>
///
/// Tool for registering students
/// for activities in their bachelor programme.
///
/// Core class usable in several ways
/// * as self-contained executable via method main()
/// * embedded in a larger system by instantiating Bachelorizer()
///
/// * v0.0.1-draft
///   * initial release, as part of delivery "Portfolio 1"
///
/// @version 0.0.1-draft
/// @see <https://moodle.ruc.dk/mod/assign/view.php?id=523186>
public class Main {

    /// Student name
    public String name;

    /// Student activity list
    public String[] activities;

    /// Main constructor
    ///
    /// @param args  command-line arguments or default demo data
    public Main(final String[] args) {
        if (args.length > 0 && args[0] != null) {
            this.name = args[0];
            if (args.length > 1 && args[1] != null) {
                this.activities = Arrays.copyOfRange(
                    args, 1, args.length);
            }
        }
    }

    /// JVM entry point
    ///
    /// @param args  command-line arguments
    public static void main(String[] args) {

        if (args.length == 0)
            args = new String[] {
                "Jonas Smedegaard",
                "CS-SMC2",
                "CS-SMC3",
            };

        Main session = new Main(args);

        // minimal viable product
        System.out.printf("Hi %s%n",
            (session.name != null)
                ? session.name
                : "stranger");
        System.out.printf("You chose these activities: %s%n",
            (session.activities != null)
                ? Arrays.toString(session.activities)
                : "[nothing]");
    }
}