Question: 6 -

Which of the following is advantage of java array?

Both Code Optimization and Random access

Code Optimization

Random access

Size No-Limit

Answer:

Both Code Optimization and Random access

Solution not available.

Question: 7 -

We can calculate the length of an array using ________.

array.sizeof()

sizeof(array)

array.len

array.length

Answer:

array.length

Solution:

We can calculate the length of an array using array.length.

Question: 8 -

Which of the following is used to declare,construct, and initlaize an array?

int [] arr = (1, 2, 3);

int [] arr = {};

int arr [] = {1, 2, 3};

int arr [] [] = {1, 2, 3, 4};

Answer:

int arr [] = {1, 2, 3};

Solution:

int arr [] = {1, 2, 3}; is used to declare,construct, and initlaize an array becuase Option A is wrong because it initializes an int array with String literals. Option B is wrong because it uses something other than curly braces for the initialization. Option C is wrong because it provides initial values for only one dimension, although the declared array is a two-dimensional array.

Question: 9 -

In java, array elements are stored in ________ memory locations.

Sequential

Random

Sequential & Random

Binary search

Answer:

Sequential

Solution:

Array elements are stored in contiguous memory. Linked List is stored in random memory locations.