Designing Class Diagram
When designing a payment app, creating a class diagram is a crucial step in representing the objects and their relationships. A class diagram provides an overview of the classes, their attributes, and the associations between them.
To illustrate the process of designing a class diagram, let's consider a simplified example of a payment app.
TEXT/X-JAVA
1// Example class diagram for a payment app
2
3class PaymentApp {
4
5 private List<User> users;
6 private List<Transaction> transactions;
7 private List<PaymentMethod> paymentMethods;
8
9 // constructor, getters, and setters
10}
11
12class User {
13
14 private int id;
15 private String name;
16 private String email;
17 private List<Address> addresses;
18
19 // constructor, getters, and setters
20}
21
22class Transaction {
23
24 private int id;
25 private User user;
26 private PaymentMethod paymentMethod;
27 private double amount;
28 private boolean status;
29
30 // constructor, getters, and setters
31}
32
33class PaymentMethod {
34
35 private int id;
36 private String name;
37 private String type;
38 private boolean isActive;
39
40 // constructor, getters, and setters
41}
42
43class Address {
44
45 private int id;
46 private String street;
47 private String city;
48 private String state;
49 private String zipCode;
50
51 // constructor, getters, and setters
52}xxxxxxxxxx50
}class PaymentApp { private List<User> users; private List<Transaction> transactions; private List<PaymentMethod> paymentMethods; // constructor, getters, and setters}class User { private int id; private String name; private String email; private List<Address> addresses; // constructor, getters, and setters}class Transaction { private int id; private User user; private PaymentMethod paymentMethod; private double amount; private boolean status; // constructor, getters, and setters}OUTPUT
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