Array — Part 2 MCQs with Explanations

To fill an array with a specified value. is the correct answer to “What is the purpose of the Arrays.fill() method in Java”. This question is standard in competitive examination syllabi for Array.

To check if two arrays are equal. is the correct answer to “In Java, what is the purpose of the Arrays.equals() method”. This question is standard in competitive examination syllabi for Array.

1 2 is the correct answer to “Determine output: public class Test{ public static void main(String[] args){ int[] x = {1, 2, 3, 4}; int[] y = x; x = new int[2]; for(int i = 0; i < x.length; i++) System.out.print(y[i] + " "); } }”. This question is standard in competitive examination syllabi for Array.

The code can compile and run fine. The second line assigns a new array to arr. is the correct answer to “Analyze the following code and choose the correct answer. int[] arr = new int[5]; arr = new int[6];”. This question is standard in competitive examination syllabi for Array.

The reference of the array. is the correct answer to “When you pass an array to a method, the method receives ________ .”. This question is standard in competitive examination syllabi for Array.

new is the correct answer to “Which of these operators is used to allocate memory to array variable in Java”. This question is standard in competitive examination syllabi for Array.

int arr[] = int [5] new is the correct answer to “Which of these is an incorrect array declaration”. This question is standard in competitive examination syllabi for Array.

Class name@ hashcode in hexadecimal form is the correct answer to “What will be the output of the following Java code? int arr[] = new int [5]; System.out.print(arr);”. This question is standard in competitive examination syllabi for Array.

0 2 4 6 8 is the correct answer to “What will be the output of the following Java code? class array_output { public static void main(String args[]) { int array_variable [] = new int[10]; for (int i = 0; i < 10; ++i) { array_variable[i] = i; System.out.print(array_variable[i] + " "); i++; } } }”. This question is standard in competitive examination syllabi for Array.

1 is the correct answer to “What will be the output of the following Java code? class evaluate { public static void main(String args[]) { int arr[] = new int[] {0 , 1, 2, 3, 4, 5, 6, 7, 8, 9}; int n = 6; n = arr[arr[n] / 2]; System.out.println(arr[n] / 2); } }”. This question is standard in competitive examination syllabi for Array.

i i i i i i i i i i is the correct answer to “What will be the output of the following Java code? class array_output { public static void main(String args[]) { char array_variable [] = new char[10]; for (int i = 0; i < 10; ++i) { array_variable[i] = 'i'; System.out.print(array_variable[i] + ""); } } }”. This question is standard in competitive examination syllabi for Array.

10 is the correct answer to “What will be the output of the following Java code? class multidimention_array { public static void main(String args[]) { int arr[][] = new int[3][]; arr[0] = new int[1]; arr[1] = new int[2]; arr[2] = new int[3]; int sum = 0; for (int i = 0; i < 3; ++i) for (int j = 0; j < i + 1; ++j) arr[i][j] = j + 1; for (int i = 0; i < 3; ++i) for (int j = 0; j < i + 1; ++j) sum + = arr[i][j]; System.out.print(sum); } }”. This question is standard in competitive examination syllabi for Array.

Row is the correct answer to “Which of these is necessary to specify at time of array initialization”. This question is standard in competitive examination syllabi for Array.

9 is the correct answer to “What will be the output of the following Java code? class array_output { public static void main(String args[]) { int array_variable[][] = {{ 1, 2, 3}, { 4 , 5, 6}, { 7, 8, 9}}; int sum = 0; for (int i = 0; i < 3; ++i) for (int j = 0; j < 3 ; ++j) sum = sum + array_variable[i][j]; System.out.print(sum / 5); } }”. This question is standard in competitive examination syllabi for Array.

It is necessary to use new operator to initialize an array is the correct answer to “Which of these is an incorrect Statement”. This question is standard in competitive examination syllabi for Array.