Array -Java Programming MCQ Questions and Answers

A. To find the maximum element in an array.

B. To search for an element in an array.

C. To sort the elements of an array.

D. To reverse the elements of an array.

A. list.getIndex(element);

B. list.indexOf(element);

C. list.find(element);

D. list.search(element);

A. addElement()

B. insertElement()

C. append()

D. add()

A. It returns null.

B. It throws an ArrayIndexOutOfBoundsException.

C. It returns -1.

D. It throws an IndexOutOfBoundsException.

A. removeAllElements()

B. clear()

C. remove()

D. deleteAll()

A. Use a loop to compare each element with the maximum value found so far.

B. Use the max() method.

C. Use the findMax() method.

D. Use the maximum() method.

A. ArrayLists can only store primitive data types.

B. ArrayLists can have duplicate elements.

C. ArrayLists are fixed in size.

D. ArrayLists can only store Strings.

A. int[][] matrix;

B. int matrix[][];

C. int matrix[2][2];

D. All of the above

A. To fill an array with a specified value.

B. To find the number of elements in an array.

C. To copy elements from one array to another.

D. To sort the elements of an array.

A. To check if two arrays are equal.

B. To concatenate two arrays.

C. To find the common elements between two arrays.

D. To remove duplicate elements from an array.