Latihan Method

 Source code :

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String menu[] = new String[10];
        int harga[] = new int[10];
        String menu_belanja[] = new String[5];
        int harga_belanja[] = new int[5];
        int pilih = 0, jumlah = 0;
        menu[0] = "Nasi Ayam Geprek";
        harga[0] = 14000;
        menu[1] = "Nasi Pecel";
        harga[1] = 10000;
        menu[2] = "Nasi Campur";
        harga[2] = 12000;
        menu[3] = "Nasi Goreng";
        harga[3] = 15000;
        menu[4] = "Nasi Ayam Katsu";
        harga[4] = 16000;
        menu[5] = "Nasi Krawu";
        harga[5] = 13000;
        do {
            System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
            System.out.println("    ~=~=    Warung Sederhana    =~=~    ");
            System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
            System.out.println("                                       ");
            System.out.println("1. Daftar Menu");
            System.out.println("2. Harga");
            System.out.println("3. Selesai");
            System.out.println("                                       ");
            System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
            System.out.print("Pilih : ");
            pilih = sc.nextInt();
            System.out.println();
            switch (pilih) {
                case 1:
                    for (int i = 0; i < 5; i++) {
                        for (int j = 0; j < 4; j++) {
                            if (menu[j].compareToIgnoreCase(menu[j + 1]) > 0) {
                                String t = menu[j];
                                menu[j] = menu[j + 1];
                                menu[j + 1] = t;
                                int h = harga[j];
                                harga[j] = harga[j + 1];
                                harga[j + 1] = h;
                            }
                        }
                    }
                    System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
                    System.out.println("       ~=~        Menu        ~=~       ");
                    System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
                    for (int i = 0; i < 6; i++) {
                        System.out.println((i + 1) + ". " + menu[i] + "  Rp." + harga[i]);
                    }
                    System.out.println();
                    break;
                case 2:
                    System.out.print("Harga Minimal     : ");
                    int min = sc.nextInt();
                    System.out.print("Harga Maksimal    : ");
                    int max = sc.nextInt();
                    System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
                    System.out.println("       ~=~        Menu        ~=~       ");
                    System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
                    String menu_cari[] = new String[5];
                    int harga_cari[] = new int[5];
                    int idx = 0;
                    for (int i = 0; i <= 6; i++) {
                        if (harga[i] >= min && harga[i] <= max) {
                            menu_cari[idx] = menu[i];
                            harga_cari[idx] = harga[i];
                            idx++;
                            System.out.println(idx + ". " + menu[i] + "  Rp. " + harga[i]);
                        }
                    }
                    System.out.print("Pilih menu : ");
                    int pilih2 = sc.nextInt();
                    menu_belanja[jumlah] = menu_cari[pilih2 - 1];
                    harga_belanja[jumlah] = harga_cari[pilih2 - 1];
                    jumlah++;
                    System.out.println();
                    break;
                case 3:
                    System.out.println("~=~ TERIMA KASIH ~=~");
                    System.out.println();
                    break;
                default:
                    System.out.println("pilihan tidak ditemukan");
                    break;
            }
        } while (pilih != 3);
        System.out.println("Pesanan Anda :");
        System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
        System.out.println("       ~=~        Menu        ~=~       ");
        for (int i = 0; i < jumlah; i++) {
            System.out.println((i + 1) + ". " + menu_belanja[i] + "  Rp. " + harga_belanja[i]);
            System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
        }
        System.out.println(" ");
        System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
        System.out.println("    ~=~  Terima Kasih Pesanannya  ~=~   ");
        System.out.println("   ~=~ Semoga Harimu Menyenangakn  ~=~  ");
        System.out.println("=~=~=~=~=~=~=~=~=~=~~=~=~=~=~=~=~=~=~=~=");
    }
}

Hasil Output :