الگوی طراحی Builder (سازنده)

class User {
    private String name;
    private String family;
    private int age;
    private String email;
    private String phone;

    User(String name, String family, int age, String email, String phone) {
        this.name = name;
        this.family = family;
        this.age = age;
        this.email = email;
        this.phone = phone;
    }
}

class User {
    private String name;
    private String family;
    private int age;
    private String email;
    private String phone;

    private User() {}

    public static class Builder {
        private final User user;

        public Builder() {
            user = new User();
        }

        public Builder name(String name) {
            user.name = name;
            return this;
        }

        public Builder family(String family) {
            user.family = family;
            return this;
        }

        public Builder age(int age) {
            user.age = age;
            return this;
        }

        public Builder email(String email) {
            user.email = email;
            return this;
        }

        public Builder phone(String phone) {
            user.phone = phone;
            return this;
        }

        public User build() {
            return user;
        }
    }
}

User user = new User.Builder()
                    .name("Ali")
                    .family("Ahmadi")
                    .age(30)
                    .email("ali@test.com")
                    .phone("09121234567")
                    .build();

class Car {
    private String brand;
    private String model;
    private int year;
    private String color;

    private Car() {}

    public static class Builder {
        private final Car car;

        public Builder() {
            car = new Car();
        }

        public Builder brand(String brand) {
            car.brand = brand;
            return this;
        }

        public Builder model(String model) {
            car.model = model;
            return this;
        }

        public Builder year(int year) {
            car.year = year;
            return this;
        }

        public Builder color(String color) {
            car.color = color;
            return this;
        }

        public Car build() {
            return car;
        }
    }
}

Car car = new Car.Builder()
                .brand("BMW")
                .model("X6")
                .year(2022)
                .color("Black")
                .build();

class Computer {
    private String cpu;
    private String ram;
    private String storage;
    private String gpu;

    private Computer() {}

    public static class Builder {
        private final Computer computer;

        public Builder() {
            computer = new Computer();
        }

        public Builder cpu(String cpu) {
            computer.cpu = cpu;
            return this;
        }

        public Builder ram(String ram) {
            computer.ram = ram;
            return this;
        }

        public Builder storage(String storage) {
            computer.storage = storage;
            return this;
        }

        public Builder gpu(String gpu) {
            computer.gpu = gpu;
            return this;
        }

        public Computer build() {
            return computer;
        }
    }
}

Computer computer = new Computer.Builder()
                            .cpu("Intel Core i7")
                            .ram("16GB")
                            .storage("512GB SSD")
                            .gpu("RTX 3060")
                            .build();

RestTemplate restTemplate = new RestTemplateBuilder()
                                  .setConnectTimeout(Duration.ofSeconds(10))
                                  .setReadTimeout(Duration.ofSeconds(10))
                                  .build();