Exploring Java Collections: List, Set, and Map

Which of the following interfaces is NOT part of the Java Collections Framework?

• Map

• Set

• List

• Array

What is the primary reason to use a Set over a List?

• To allow duplicate elements

• To maintain the order of elements

• To ensure unique elements

• To associate keys with values

What does the 'raw use of parameterized class' warning indicate?

• The class is not imported correctly

• Generics are not used properly

• The class is abstract and cannot be instantiated

• The class is not part of the Java Collections Framework

Which method is used to add an element to a List?

• append()

• put()

• add()

• insert()

What is the main advantage of using a LinkedList over an ArrayList?

• Better performance for inserting elements in the middle

• Maintains the order of elements

• Allows duplicate elements

• Provides a simpler interface

Which of the following is a characteristic of a Set?

• Allows duplicate elements

• Associates keys with values

• Maintains the order of elements

• Ensures unique elements

What happens if you try to add a duplicate element to a Set?

• The Set is cleared

• An exception is thrown

• The duplicate element is ignored

• The duplicate element is added

Which method is used to add a key-value pair to a Map?

• put()

• add()

• insert()

• append()

How can you retrieve a value from a Map if you know the key?

• map.retrieve()

• map.getValue()

• map.getKey()

• map.put()

Which method would you use to clear all elements from a List?

• removeAll()

• clear()

• deleteAll()

• reset()