tigoyoga / FP-PBO

Final Project PBO B

Nama : Tigo S Yoga

NRP : 5025211125

Kelas : PBO B

Link Sumber

Link Demo

Deskripsi

Aplikasi Kasir Sederhana menggunakan Java. Aplikasi ini berfungsi menghitung total pembayaran berdasarkan menu makanan dan minuman yang dipilih. Aplikasi ini juga dapat menampilkan struk transaksi dan riwayat transaksi.

Implementasi

1. Casting/Conversion

MainFrame.java

ListMenu.AyamGoreng.jumlah = ListMenu.AyamGoreng.getPrice() * Double.parseDouble(jTextAyam.getText());
ListMenu.NasiGoreng.jumlah = ListMenu.NasiGoreng.getPrice() * Double.parseDouble(jTextNasgor.getText());
ListMenu.SotoAyam.jumlah = ListMenu.SotoAyam.getPrice() * Double.parseDouble(jTextSoto.getText());

2. Constructor

Menu.java

public abstract class Menu {

    private String foodName;
    private double price;
    public double jumlah;

    public Menu(String foodName, double price) {
        this.foodName = foodName;
        this.price = price;
    }
    ...
}

3. Overloading

Menu.java

public abstract class Menu {

    private String foodName;
    private double price;
    public double jumlah;

    public Menu(String foodName, double price) {
        this.foodName = foodName;
        this.price = price;
    }
    ...
}

4. Overriding

Menu.java

public abstract class Menu {

    private String foodName;
    private double price;
    public double jumlah;
    
    ...
    
    public String printInfo() {
        return ("Nama menu : " + this.foodName + "\nHarga menu : " + String.format("Rp%.2f" + "0", this.getPrice()));
    }
}

Food.java

public class Food extends Menu {

    ...
      
    public String printInfo() {
        return ("Nama makanan : " + this.getName() + "\nHarga makanan : " + String.format("Rp%.2f" + "0", this.getPrice()));
    }
}

5. Encapsulation

Menu.java

public abstract class Menu {

    private String foodName;
    private double price;
    public double jumlah;
    
    ...

    public void setName(String foodName) {
        this.foodName = foodName;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    public String getName() {
        return this.foodName;
    }

    public double getPrice() {
        return this.price;
    }
}

6. Inheritance

Food.java

public class Food extends Menu {

    public String levelPedas;

    public Food(String foodName, double price, String level) {
        super(foodName, price);
        this.levelPedas = level;
    }
    
    ...
}

7. Polymorphism

MenuApp.java

public class MenuApp implements MenuInterface {

    ...

    Menu AyamGoreng = new Food("Ayam Goreng", 17.000, null); 
    Food SotoAyam = new Food("Soto Ayam", 20.000, null);
    Food NasiGoreng = new Food("Nasi Goreng", 15.000, null);

    ...
}

8. ArrayList

ReadFilePath.java

public class ReadFilePath {

    ...

    public List<String> getFile() throws IOException {

        List<String> Arr = new ArrayList<>();

        File filesList[] = directoryPath.listFiles();
        for (File file : filesList) {

            if (file.getName().contains(".txt")) {
                Arr.add(file.getName().substring(0, 12));
            }
        }

        return Arr;
    }

    ...
    
}

9. Exception Handling

MainFrame.java

private void jBtnStrukActionPerformed(java.awt.event.ActionEvent evt) {                                          
       
       ...

        try {

            File file = new File("receipt-" + nomorOrder + ".txt");

            file.createNewFile();

            PrintWriter pw = new PrintWriter(file);
            
            ...
            
            pw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
       
       ...
       
    }   

10. GUI

11. Interface

MenuInterface.java

public interface MenuInterface {

    public double GetAmount();

    public void iExitSystem();

    public double totalPajak(double hPajak);
}

12. Abstract Class

Menu.java

public abstract class Menu {

    private String foodName;
    private double price;
    public double jumlah;
 
   ...

}

13. Generics

ReadFilePath.java

public class ReadFilePath {
   
    ...
    
   public List<String> getFile() throws IOException { //List<String> as a Generics
       
       List<String> Arr = new ArrayList<>();

      File filesList[] = directoryPath.listFiles();
      
      ...
      
   }

14. Collection

ReadFilePath.java

public class ReadFilePath {
   
   ...
   
   public List<String> getFile() throws IOException {
       
       List<String> Arr = new ArrayList<>();          //List as a Collection

      File filesList[] = directoryPath.listFiles();
      for(File file : filesList) {                  //Iterable Object
          
          if(file.getName().contains(".txt")){
              Arr.add(file.getName().substring(0, 12));
          }
      }
      
       return Arr;
   }
}

15. Input Output

• Write File

MainFrame.java

private void jBtnStrukActionPerformed(java.awt.event.ActionEvent evt) {                                          
        
        int nomorOrder = 1325 + (int) (Math.random() * 4238);

        ...

        try {

            File file = new File("receipt-" + nomorOrder + ".txt");

            file.createNewFile();

            PrintWriter pw = new PrintWriter(file);
            pw.println("                    WARUNG SEDERHANA\n\n"
                    + "No Order : " + nomorOrder
                    + "\n==================================\n"
                    + " Makanan : \t\t" + jTextMakan.getText() + "\n\n"
                    + " Minuman : \t\t" + jTextMinum.getText() + "\n\n"
                    + "\n==================================\n"
                    + " Subtotal : \t\t" + jTextTotal2.getText() + "\n\n"
                    + " PPN : \t\t" + jTextTotal3.getText() + "\n\n"
                    + " Total Bayar : \t\t" + jTextTotal3.getText() + "\n"
                    + "\n==================================\n"
                    + "\n Tanggal : \t" + tDate.format(timer.getTime())
                    + "\n Waktu : \t" + tTime.format(timer.getTime())
                    + "\n\n\n Terimakasih");

            pw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
}

• Read File

readFilePath.java

public class ReadFilePath {

    File directoryPath = new File("C:\\Users\\LENOVO\\OneDrive\\Documents\\NetBeansProjects\\FP-PBO\\CashierApp");

    public List<String> getFile() throws IOException {

        List<String> Arr = new ArrayList<>();

        File filesList[] = directoryPath.listFiles();
        for (File file : filesList) {

            if (file.getName().contains(".txt")) {
                Arr.add(file.getName().substring(0, 12));
            }
        }

        return Arr;
    }

    public String readContent(String name) throws FileNotFoundException {
        File filesList[] = directoryPath.listFiles();

        StringBuilder sb = new StringBuilder();
        for (File file : filesList) {
            
            
            if (file.getName().equals(name)) {
                Scanner sc = new Scanner(file);
                String input;

                while (sc.hasNextLine()) {
                    input = sc.nextLine();
                    sb.append(input).append("\n");
                }
            }
            
            
        }

        return sb.toString();
    }

}