What happens when an element is inserted into an ArrayList and the capacity is already full?Question 6Answera.The element is added at the end of the ArrayList.b.The capacity of the ArrayList is automatically increased.c.An exception is thrown.d.The existing elements are shifted to accommodate the new element.
Question
What happens when an element is inserted into an ArrayList and the capacity is already full?Question 6Answera.The element is added at the end of the ArrayList.b.The capacity of the ArrayList is automatically increased.c.An exception is thrown.d.The existing elements are shifted to accommodate the new element.
Solution
When an element is inserted into an ArrayList and the capacity is already full, the following happens:
a. The element is added at the end of the ArrayList: This is true. ArrayLists in Java are dynamic arrays, meaning they can grow as needed. When a new element is added, it is placed at the end of the ArrayList.
b. The capacity of the ArrayList is automatically increased: This is also true. When an ArrayList is full and a new element is added, Java automatically increases the capacity of the ArrayList to accommodate the new element. This is done by creating a new array with a larger capacity and copying the elements from the old array to the new one.
c. An exception is thrown: This is false. In Java, an exception is not thrown when an element is added to a full ArrayList. Instead, the ArrayList automatically increases its capacity to accommodate the new element.
d. The existing elements are shifted to accommodate the new element: This can be true or false depending on the situation. If the new element is added at the end of the ArrayList, then no shifting is necessary. However, if the new element is inserted at a specific position in the ArrayList, then the elements that come after that position are shifted to make room for the new element.
Similar Questions
Which of the following statements is true regarding ArrayList in Java? a. ArrayList is a synchronized data structure, making it thread-safe. b. ArrayList allows duplicate elements and maintains insertion order. c. ArrayList has a fixed size that must be specified at creation and cannot be changed. d. ArrayList can only store primitive data types like int, double, and char.
In Java, what is the average time complexity of adding an element to the end of an ArrayList and what is the worst-case time complexity of adding an element to the end of an ArrayList when it requires resizing?? a. Average: O(1), Worst-case: O(n) b. Average: O(n), Worst-case: O(n log n) c. Average: O(log n), Worst-case: O(n) d. Average: O(1), Worst-case: O(1)
The ArrayList class implements the List interface. It uses a dynamic array to store the duplicate element of different data types. The ArrayList class maintains the insertion order and is non-synchronized. The elements stored in the ArrayList class can be randomly accessed. Consider the following example.
When inserting an element at the second position of an array, what happens to the original second element?
Consider an array arr of size 5, initially filled with elements [2, 4, 6, 8, 10]. You want to insert the element 5 at position 2 in the array. What would be the array after the insertion?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.