Main.java

package Praktikum9_2;

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.ArrayList;
import java.util.Scanner;

public class Main {
    private static final ArrayList<Furniture> daftar = new ArrayList<>();

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

        System.out.println("════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════");
        System.out.println("                                             PENDATAAN PENJUALAN FURNITURE                                             ");
        System.out.println("════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════");
        System.out.print("Masukkan jumlah furnitur yang dibeli : ");

        int N = sc.nextInt();
        sc.nextLine();
        for (int i = 0; i < N; i++) {
            String nama, kode, jenis;
            double berat, harga;
            System.out.print("Masukkan nama barang  : ");
            nama = sc.nextLine();

            switch (nama.toLowerCase()) {
                case "meja": case "kursi": case "lemari": case "rak buku": case "tempat tidur":
                    jenis = "Perabotan Kayu";
                    break;
                case "lampu": case "kipas angin": case "tv": case "radio":
                    jenis = "Elektronik";
                    break;
                default:
                    System.out.println("Nama barang tidak terdaftar.\n");
                    continue;
            }

            System.out.print("Masukkan kode barang  : ");
            kode = sc.nextLine();
            System.out.print("Masukkan berat barang : ");
            berat = sc.nextDouble();
            System.out.print("Masukkan harga barang : ");
            harga = sc.nextDouble();
            sc.nextLine();
            if (jenis.equals("Perabotan Kayu")) {
                daftar.add(new PerabotKayu(kode, nama, berat, harga));
            }
            else {
                daftar.add(new Elektronik(kode, nama, berat, harga));
            }
            System.out.println();
        }
        rekapitulasi();

        String s;
        while (true) {
            System.out.print("Masukkan nama atau kode barang (Ketik \"Selesai\" untuk selesai) : ");
            s = sc.nextLine();
            if (s.equalsIgnoreCase("selesai")) break;
            boolean ketemu = false;
            for (Furniture i : daftar) {
                if (i.getNamaBarang().equalsIgnoreCase(s) || i.getKodeBarang().equalsIgnoreCase(s)) {
                    tampilkanObjek(i);
                    ketemu = true;
                }
            }
            if (!ketemu) System.out.println("Barang tidak ditemukan!");
        }
    }

    public static void rekapitulasi() {
        System.out.println("════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════");
        System.out.println("                                         REKAPITULASI HASIL PENJUALAN FURNITURE                                         ");
        System.out.println("⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯");
        System.out.printf("%-15s%-40s%-20s%-28s%-17s\n", "Kode","Nama Barang","Berat Barang","Jenis Barang", "Harga");
        System.out.println("⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯");
        double totalBerat = 0, totalHarga = 0;
        for (Furniture barang : daftar) {
            System.out.printf("%-15s%-40s%-20s%-28sRp%15s\n", barang.getKodeBarang(),barang.getNamaBarang(),barang.getBeratBarang()+" kg",barang.getJenisBarang(),formatUang(barang.getHargaBarang()));
            totalBerat += barang.getBeratBarang();
            totalHarga += barang.getHargaBarang();
        }
        System.out.println("⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯");
        System.out.printf("%-15s%-40s%-20s%-28sRp%15s\n", "TOTAL","-",totalBerat + " kg","-",formatUang(totalHarga));
        System.out.println("════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════");
    }

    public static <T extends Furniture> void tampilkanObjek (T objek) {
        System.out.printf(">  %-15s: %s\n", "Nama Barang", objek.getNamaBarang());
        System.out.printf("   %-15s: %s\n", "Kode", objek.getKodeBarang());
        System.out.printf("   %-15s: %s\n", "Jenis Barang", objek.getJenisBarang());
        System.out.printf("   %-15s: %s kg\n", "Berat", objek.getBeratBarang());
        System.out.printf("   %-15s: Rp%s\n", "Harga", formatUang(objek.getHargaBarang()));
        System.out.println();
    }

    private static String formatUang(double angka) {
        DecimalFormat kursIndonesia = (DecimalFormat)DecimalFormat.getCurrencyInstance();
        DecimalFormatSymbols formatRp = new DecimalFormatSymbols();
        formatRp.setCurrencySymbol("");
        formatRp.setMonetaryDecimalSeparator(' ');
        kursIndonesia.setDecimalFormatSymbols(formatRp);

        return kursIndonesia.format(angka).replace(',','.').replace(' ',',');
    }
}