Array -Java Programming MCQ Questions and Answers

A. matrix.rows()

B. matrix.size()

C. matrix.length

D. matrix.length()

A. TRUE

B. FALSE

C. 1

D. 0

A. Arrays can change in size after initialization.

B. Arrays can store elements of different types.

C. Arrays can have a negative length.

D. Arrays are objects of type Array.

A. Use a for loop to iterate through the elements and copy them one by one.

B. Use the clone() method of arrays.

C. Use the copy() method of arrays.

D. None of the above

A. int[] numbers = new int[5];

B. int[5] numbers; numbers = {1, 2, 3, 4, 5};

C. int numbers[5] = {1, 2, 3, 4, 5};

D. All of the above

A. ArrayList numbers = new ArrayList();

B. ArrayList numbers = new ArrayList();

C. ArrayList numbers[] = new ArrayList[5];

D. int[] numbers = new int[5];

A. To copy elements from one array to another.

B. To compare two arrays.

C. To reverse the elements of an array.

D. To find the length of an array.

A. The size is fixed and cannot change.

B. The size can only increase but not decrease.

C. The size can change dynamically.

D. The size is determined by the length of the elements.

A. list.remove(index);

B. list.delete(index);

C. list.pop(index);

D. list.splice(index);

A. Use the find() method.

B. Use the search() method.

C. Use the contains() method.

D. Use the exists() method.