java - 如何创建 stub ？

Question

我正在尝试创建 Customer 的 stub ，据我所知，它是一个假类，因为 myCustomer 无法解析为此。但是，我已经在网上到处检查了任何基本教程或示例来创建 stub ，但在任何地方都找不到它。

import java.util.*;

public class Bank {
    public int bankAccount(int customerNumber, int startingBalance){

    Scanner stdin = new Scanner(System.in);
        System.out.println("Welcome Everyone.");
        Customer myCustomer = Customer.getWithCustomerNumber(customerNumber);
        String name = myCustomer.name;
    }
}

Answer 1

我的 IDE (NetBeans) 自动创建了一个 stub Customer，如下所示:

private static class Customer {

    private String name;

    private static Customer getWithCustomerNumber(int customerNumber) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    public Customer() {
    }
}