Generic type as parameter in Java Method

Question

Do you think it is possible to create something similar to this?

private ArrayList increaseSizeArray(ArrayList array_test, GenericClass) {
    array_test.ad         


        

Answer 1

Old question but I would imagine this is the preferred way of doing it in java8+

public  ArrayList dynamicAdd(ArrayList list, Supplier supplier) {
  list.add(supplier.get());
  return list;
}

and it could be used like this:

AtomicInteger counter = ...;
ArrayList list = ...;

dynamicAdd(list, counter::incrementAndGet);

this will add a number to the list, getting the value from AtomicInteger's incrementAndGet method

Also possible to use constructors as method references like this: MyType::new