Hands on OOP submission by Mesach Harmasendro

Mesach Harmasendro_ITB/src/App.java

@@ -0,0 +1,242 @@
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Scanner;
+
+//        Program bank sederhana
+//
+//        Terdapat fitur login dan register lalu setelah login akan ada pilihan menu
+//        cek saldo, deposit, dan tarik tunai.
+//
+//        Implementasi OOP ada pada user dimana user terdapat tiga jenis yaitu standard, gold, dan platinum
+//
+//        Tersedia 3 akun/user bawaan untuk tes:
+//        - mch123, 1234 (standard)
+//        - abg123, 1234 (gold)
+//        - dxg123, 1234 (platinum)
+//
+//        Program berbasis terminal jadi dijalankan di terminal
+
+public class App {
+
+    public static Scanner sc = new Scanner(System.in);
+    public static User user = null;
+    public static List<User> users = new LinkedList<>();
+
+    public static void main(String[] args) {
+
+        users.addAll(List.of(new User(500, "mch123", 1234), new GoldUser(500, "abg123", 1234), new PlatinumUser(500, "dxg123", 1234)));
+
+        while (user == null) {
+            loginPage();
+        }
+
+        while (true) {
+            mainPage();
+            int input = sc.nextInt();
+            if (input == 1){
+                while (true) {
+                    user.cekSaldo();
+                    String input2 = sc.next();
+                    if (input2.equals("y")){
+                        break;
+                    }
+                }
+            } else if (input == 2) {
+                try {
+                    Boolean a = user.tarikTunai();
+                    while (!a) {
+                        a = user.tarikTunai();
+                    }
+                } catch (Exception e){
+
+                }
+            } else if (input == 3) {
+                try {
+                    Boolean a = user.deposit();
+                    while (!a) {
+                        a = user.deposit();
+                    }
+                } catch (Exception e){
+
+                }
+            }else if (input == 4) {
+                user = null;
+                loginPage();
+            }
+        }
+    }
+
+    public static void loginPage(){
+        System.out.println("LOGIN");
+        System.out.println("=====\n");
+        System.out.println("1.\tSign in");
+        System.out.println("2.\tRegister");
+        System.out.println("3.\tExit\n");
+        System.out.print("Masukan pilihan : ");
+        int input = sc.nextInt();
+
+        if (input == 2){
+            register();
+        } else if (input == 1){
+            signIn();
+        } else if (input == 3) {
+            System.exit(0);
+        }
+    }
+
+    public static void signIn(){
+        System.out.println("\nSIGN IN");
+        System.out.println("=========================\n");
+        System.out.print("Username: ");
+        String username = sc.next();
+        sc.nextLine();
+        System.out.print("Password: ");
+        int pass = sc.nextInt();
+        sc.nextLine();
+        System.out.println("");
+
+        for (User u: users){
+            if (u.getUsername().equals(username)){
+                if (u.getPass() == pass){
+                    user = u;
+                    return;
+                } else if (u.getPass() != pass) {
+                    System.out.println("password salah");
+                    loginPage();
+                }
+            }
+        }
+        System.out.println("username salah");
+        loginPage();
+    }
+
+    public static void mainPage(){
+        System.out.println("\nWELCOME TO BANKING APP");
+        System.out.println("=========================\n");
+        System.out.println("1.\tCek saldo");
+        System.out.println("2.\tTarik tunai");
+        System.out.println("3.\tTambah deposit");
+        System.out.println("4.\tKeluar\n");
+        System.out.print("Masukan pilihanmu : ");
+    }
+
+    public static void register(){
+        String username;
+        int password;
+        int deposit;
+        while (true) {
+            System.out.println("REGISTER");
+            System.out.println("=====\n");
+            System.out.print("1.\tUsername (6 karakter): ");
+            username = sc.next();
+            sc.nextLine();
+            System.out.print("2.\tPassword (4 angka):");
+            password = sc.nextInt();
+            sc.nextLine();
+            System.out.print("3.\tConfirm password : ");
+            int cpass = sc.nextInt();
+            sc.nextLine();
+
+            boolean b = true;
+            for (User u: users){
+                if (u.getUsername().equals(username)){
+                    System.out.println("Username telah digunakan");
+                    b = false;
+                    break;
+                }
+            }
+
+            if (username.length() <= 6 && password <= 9999 && password == cpass && b){
+                break;
+            }
+
+            if (username.length() > 6) {
+                System.out.println("Invalid username");
+            }
+            if (password > 9999) {
+                System.out.println("Invalid password");
+            }
+            if (password != cpass) {
+                System.out.println("password dan confirm password harus sama");
+            }
+
+
+            System.out.print("Apakah mau mengulang? (y/n): ");
+            String inp = sc.next();
+            if (!inp.equals("y")){
+                loginPage();
+                return;
+            }
+        }
+
+        while (true){
+            System.out.println("REGISTER");
+            System.out.println("PEMILIHAN MEMBER");
+            System.out.println("================\n");
+            System.out.println("1.\tSTANDARD");
+            System.out.println("2.\tGOLD");
+            System.out.println("3.\tPLATINUM");
+            System.out.println("4.\tKembali\n");
+            System.out.print("Masukan pilihan : ");
+            int inp2 = sc.nextInt();
+
+            if (inp2 == 1){
+                while(true) {
+                    System.out.println("STANDARD MEMBER");
+                    System.out.println("================\n");
+                    System.out.println("Minimal deposit $50");
+                    System.out.print("Deposit awal ('-1' untuk kembali): ");
+                    deposit = sc.nextInt();
+                    if (deposit >= 50) {
+                        User newUser = new User(deposit, username, password);
+                        users.add(newUser);
+                        System.out.println("*** REGISTRASI BERHASIL ***");
+                        loginPage();
+                        return;
+                    } else if (deposit == -1){
+                        break;
+                    }
+                }
+            } else if (inp2 == 2){
+                while(true) {
+                    System.out.println("GOLD MEMBER");
+                    System.out.println("================\n");
+                    System.out.println("Minimal deposit $250");
+                    System.out.println("Deposit awal ('-1' untuk kembali): ");
+                    deposit = sc.nextInt();
+                    if (deposit >= 250) {
+                        User newUser = new GoldUser(deposit, username, password);
+                        users.add(newUser);
+                        System.out.println("*** REGISTRASI BERHASIL ***");
+                        loginPage();
+                        return;
+                    } else if (deposit == -1){
+                        break;
+                    }
+                }
+            } else if (inp2 == 3){
+                while(true) {
+                    System.out.println("PLATINUM MEMBER");
+                    System.out.println("================\n");
+                    System.out.println("Minimal deposit $500");
+                    System.out.println("Deposit awal ('-1' untuk kembali): ");
+                    deposit = sc.nextInt();
+                    if (deposit >= 500) {
+                        User newUser = new PlatinumUser(deposit, username, password);
+                        users.add(newUser);
+                        System.out.println("*** REGISTRASI BERHASIL ***");
+                        loginPage();
+                        return;
+                    } else if (deposit == -1){
+                        break;
+                    }
+                }
+            } else if (inp2 == 4){
+                loginPage();
+                return;
+            } else {
+                System.out.println("Input salah silahkan ulangi kembali");
+            }
+        }
+    }
+}

Mesach Harmasendro_ITB/src/GoldUser.java

@@ -0,0 +1,60 @@
+public class GoldUser extends User{
+    public GoldUser(int saldo, String name, int pass) {
+        super(saldo, name, pass);
+    }
+
+    @Override
+    public void cekSaldo() {
+        System.out.println("CEK SALDO");
+        System.out.println(" ** GOLD MEMBER **");
+        System.out.println("========\n");
+        System.out.println("Saldo : $" + super.getSaldo());
+        System.out.print("Apakah mau kembali ke halaman utama (y/n) : ");
+    }
+
+    @Override
+    public Boolean tarikTunai() {
+        System.out.println("TARIK TUNAI");
+        System.out.println(" ** GOLD MEMBER **");
+        System.out.println("========\n");
+        System.out.println("Maksimal penarikan $1000");
+        System.out.print("Masukan jumlah uang ('q untuk keluar'): ");
+        String input = App.sc.next();
+        if (input.equals("q")) return null;
+        if (Integer.parseInt(input) > 1000){
+            System.out.println("Melebihi batas penarikan tunai ($1000)");
+            return false;
+        } else {
+            super.setSaldo(super.getSaldo() - Integer.parseInt(input));
+            System.out.println("Tarik tunai berhasil");
+            System.out.println("========");
+            System.out.print("Apakah mau kembali ke halaman utama (y/n) : ");
+            String input2 = App.sc.next();
+            return input2.equals("y");
+
+        }
+    }
+
+    @Override
+    public Boolean deposit() {
+        System.out.println("DEPOSIT");
+        System.out.println(" ** GOLD MEMBER **");
+        System.out.println("========\n");
+        System.out.println("Minimal deposit $50");
+        System.out.print("Masukan jumlah uang ('q untuk keluar'): ");
+        String input = App.sc.next();
+        if (input.equals("q")) return null;
+        if (Integer.parseInt(input) < 50) {
+            System.out.println("Deposit gagal!!!");
+            System.out.println("Minimal deposit $50");
+            return false;
+        } else {
+            super.setSaldo(super.getSaldo() + Integer.parseInt(input));
+            System.out.println("deposit berhasil");
+            System.out.println("========");
+            System.out.print("Apakah mau kembali ke halaman utama (y/n) : ");
+            String input2 = App.sc.next();
+            return input2.equals("y");
+        }
+    }
+}