Simple Matrix Multiplication - Java Quiz Question

Write a program to multiply the given matrices.

Input (Two Dimensional matrix)	Output (Two Dimensional matrix)
`5 3 1 2 and 4 5 2 1`	`11 13 14 13`
`1 2 3 5 1 8 4 5 6 and 10 9 88 7 8 9 19 22 17`	`82 85 235 184 181 574 286 277 913`
`-2 -4 3 6 7 8 -1 2 2 and 1 2 3 5 4 3 4 5 6`	`-4 -7 -10 4 7 10 46 58 70`
`4 5 1 4 5 1 7 19 23 and 7 19 23`	`146 146 939`


			

			class SimpleMatrixMultiplication 
 { 

			    public static void main(String s[])
    {
        int firstArray[][] = {{1, 2, 3, 4}, {9, 8, 7, -2}, {0, 5, -3, 7}};
        int secondArray[][] = {{0, 2, 3, 1}, {8, 9, 11, -1}, {3, 2, 1, 7}, {-5, 2, 8, 1}};
        System.out.println("Resultant matrix is :");
        int multiplicationArray[][] = multiplyMatrices(firstArray, secondArray);
        for (int[] array1d : multiplicationArray) {
        for (int element : array1d) {
        System.out.print(element + "   ");
        }
        System.out.println();
        }

    }
 
			

			

					    public static int[][] multiplyMatrices(int firstMatrix[][], int secondMatrix[][]) {

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