Overloading Java function with List<> parameter

Question

I have 2 classes

public class Customer{
  ...
  public String getCustomerNumber();
  ...
}

public class Applicant{
   ....
   private Customer c;
   public Cust         


        

Answer 1

Use array instead.

public void processCustomerNumbers(Customer[] custList)
...

public void processCustomerNumbers(Applicant[] appList)
...

When you try to call these methods with a list, convert the list to array:

List customers;
List applicants;
...
processCustomerNumbers(customers.toArray(new Customer[]{});
processCustomerNumbers(applicants.toArray(new Applicant[]{});