Which of these interface is not part of Java’s collection framework?

Which of these interface declares core method that all collections will have?

Which interface does java.util.Hashtable implement?

Which collection class allows you to grow or shrink its size and provides indexed access to its elements, but whose methods are not synchronized?

List listNames = new ArrayList();

listNames.add("Tom");

listNames.add("Mary");

listNames.add("Peter");

String name2 = (String) listNames.get(1);

System.out.println(name2);

What is the output of the above code

Which of these methods deletes all the elements from invoking collection?

HashSet __ support Sorting and __ follows iteration order

What index value is used to locate the last element in the nums ArrayList?

What will print when the following code executes?

ArrayList<Integer> list = new ArrayList<Integer>();

list.add(7);

list.add(8);

list.add(9);

System.out.println(list.remove(0));