Using java.util.List in C# with IKVM

Question

I'm trying to make a call to a java application using a C# client. The object that is sent is of type java.util.List. I've added the required IKVM assemblies to my C# project. I'm just unsure how I should instantiate the List object. As it's just on interface I can't just create a new instance of it.

 java.util.List myList = new java.util.List();

Could someone provide me help on using this? Thanks in advance.

Answer 1

In java there are Iterators

sample usage:

        java.util.List matches = new java.util.ArrayList();
        //stuff to add elements to list
        Iterator it = matches.iterator();
        while (it.hasNext())
        {
            RuleMatch m = (RuleMatch)it.next();
            Console.WriteLine("Potential error:" + m.getMessage());
        }

Answer 2

As we know that the type java.util.List is an interface (and it is not a class type so we can't instantiate). You need to use the any class type which is an implementation of java.util.List .

java.util.List myList = new java.util.ArrayList();

Or even better to use type parameter:

java.util.List<Integer> myList = new java.util.ArrayList<>();