public class AplikasiSapa {
    public static void main(String[] args) {
        tampilkanJudul();
        System.out.println(sapa("Budi"));
        System.out.println(sapa("Siti"));
    }

    static void tampilkanJudul() {
        System.out.println("=== Aplikasi Sapa ===");
    }

    static String sapa(String nama) {
        return "Halo, " + nama + "!";
    }
}