public interface IMatrixMultiple { public int[][] mmltiple(int[][]a ,int [][]b); }
public class MatrixMultiple implements IMatrixMultiple { @Override public int[][] mmltiple(int[][] a, int[][] b) { int [][] result = new int[a.length][b[0].length]; for (int i = 0; i<a.length; i++) { for (int j = 0; j<b[0].length; j++) { for (int k = 0; k<a[0].length; k++) { result[i][j]= result[i][j]+a[i][k]*b[k][j]; } } } return result; } }