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Code example 13-2
public class CustomerList
{
private List<Customer> customers;
public delegate void ChangeHandler(CustomerList customers);
public event ChangeHandler ChangedList;
public CustomerList()
{
customers = new List<Customer>();
}
public void Add(Customer c)
{
customers.Add(c);
}
public static CustomerList operator + (CustomerList customers, Customer c)
{
customers.Add(c);
return customers;
}
}
(Refer to code example 13-2) Which of the following statements declares an indexer for the
CustomerList class that uses an int value named i to get or set a Customer object at the specified
index?
public Customer indexer(int i)
public Customer this[int i]
public Customer [int i]
private Customer delegate[int i]

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  • 1. Code example 13-2 public class CustomerList { private List<Customer> customers; public delegate void ChangeHandler(CustomerList customers); public event ChangeHandler ChangedList; public CustomerList() { customers = new List<Customer>(); } public void Add(Customer c) { customers.Add(c); } public static CustomerList operator + (CustomerList customers, Customer c) { customers.Add(c); return customers; } } (Refer to code example 13-2) Which of the following statements declares an indexer for the CustomerList class that uses an int value named i to get or set a Customer object at the specified index? public Customer indexer(int i) public Customer this[int i] public Customer [int i] private Customer delegate[int i]