Untitled

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        double n1, n2, n3, n4;
        System.out.println("Muhammad Bagas Dewangga");
        System.out.print("Masukkan nomor pertama : ");
        n1 = input.nextDouble();
        System.out.print("Masukkan nomor kedua : ");
        n2 = input.nextDouble();
        System.out.print("Masukkan nomor ketiga : ");
        n3 = input.nextDouble();

        n4 = (n1 + n2 + n3) / 3;
        System.out.print("Nilai rata-rata adalah : " + n4);
        input.close();
    }
}