Sample of Java Pattern -- Façade

Customer.java

package facade;

public class Customer {
    private String name;
    private String address;
    private Order order;
    
    public String getName() {
        return name;
    }

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

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
    
    public Order getOrder() {
        return order;
    }

    public void setOrder(Order order) {
        this.order = order;
    }
    
    public void save(){
        
    }

}

Order.java

package facade;

public class Order {
    private String sku;

    public String getSku() {
        return sku;
    }

    public void setSku(String sku) {
        this.sku = sku;
    }
    
    public void save(){
        
    }
}

CustomerFacade.java

package facade;

public class CustomerFacade {
    public void placeOrder(String customerName, String customerAddress, String sku){
        Customer customer = new Customer();
        customer.setName(customerName);
        customer.setAddress(customerAddress);
        Order order = new Order();
        order.setSku(sku);
        customer.setOrder(order);
        customer.save();
        order.save();
    }
}

FacadeTest.java

package facade;

public class FacadeTest {

    public static void main(String[] args) {
        CustomerFacade customerFacade = new CustomerFacade();
        customerFacade.placeOrder("customerName", "customerAddress", "sku");
    }

}

you may download the source code.