Question

Which of the following is a valid way to declare a multi-dimensional array in Java?

a) int[] arr = new int[3][3];

b) int[][] arr = new int[3][3];

c) int[][] arr = new int[3,3];

d) int[] arr = new int[]{3,3};

Answer 1

Solution: b) int[][] arr = new int[3][3];

Explanation: To declare a multi-dimensional array in Java, we use the syntax int[][] arr = new int[3][3], where 3 is the size of both the first and second dimension of the array.