diff --git a/MatrixExample.java b/MatrixExample.java
index 051e5bc..fbf4c11 100644
--- a/MatrixExample.java
+++ b/MatrixExample.java
@@ -40,13 +40,13 @@ public static int[][] multiplyMatrices(int[][] matrix1, int[][] matrix2) {
         }
 
         // Some more issues here too
-        int[][] result = new int[rows1+1][cols2+1];
+        int[][] result = new int[rows1][cols2];
 
         // Lots of issues with this code, it used to be working perfectly though
         for (int i = 0; i < rows1; i++) {
             for (int j = 0; j < cols2; j++) {
                 for (int k = 0; k < cols1; k++) {
-                    result[j][k] += matrix1[i][j] * matrix2[k][j];
+                    result[i][j] += matrix1[i][k] * matrix2[k][j];
                 }
             }
         }
diff --git a/MatrixExampleTester.java b/MatrixExampleTester.java
new file mode 100644
index 0000000..fb9987f
--- /dev/null
+++ b/MatrixExampleTester.java
@@ -0,0 +1,75 @@
+public class MatrixExampleTester {
+    public static void main(String[] args) {
+        // Testing matrix multiplication
+        int[][] matrix1 = {
+            { 1, 3, 5 },
+            { 3, 5, 7 },
+            { 4, 8, 12 }
+        };
+
+        int[][] matrix2 = {
+            { 1, 0, 0 },
+            { 0, 1, 0 },
+            { 0, 0, 1 }
+        };
+
+        int[][] product1 = MatrixExample.multiplyMatrices(matrix1, matrix2);
+
+        printMatrix(product1);
+
+        int[][] matrix3 = {
+            { 2, 7 },
+            { 4, 1 },
+            { 9, 9 },
+            { 5, 1 }
+        };
+
+        int[][] matrix4 = {
+            { 8, 1, 3, 4, 8 },
+            { 2, 4, 6, 8, 0 }
+        };
+
+        int[][] product2 = MatrixExample.multiplyMatrices(matrix3, matrix4);
+
+        printMatrix(product2);
+
+        int[][] matrix5 = {
+                { 1, 2, 3, 4, 5, 6 },
+                { 4, 5, 6, 3, 7, 2 },
+                { 27, 8, 9, 5, 3, 21 },
+                { 73, 2, 19, 5, 1, 8 },
+                { 47, 9, 9, 5, 0, 22 },
+                { 78, 86, 1, 4, 1, 21 },
+                { 73, 18, 2, 2, 5, 11 }
+        };
+
+        int[][] matrix6 = {
+            { 4, 12, 9, 1 },
+            { 22, 19, 71, 2 },
+            { 3, 55, 81, 47 },
+            { 10, 20, 30, 40 },
+            { 3, 9, 27, 81 },
+            { 11, 21, 20, 7 }
+        };
+
+        int[][] product3 = MatrixExample.multiplyMatrices(matrix5, matrix6);
+
+        printMatrix(product3);
+
+        // Testing Random Matrices of various sizes
+        printMatrix(MatrixExample.generateRandomMatrix(3, 3));
+        printMatrix(MatrixExample.generateRandomMatrix(2, 7));
+        printMatrix(MatrixExample.generateRandomMatrix(6, 7));
+    }
+
+    static public void printMatrix(int[][] matrix) {
+        System.out.println("result length: " + matrix.length + " x " + matrix[0].length);
+        for (int i = 0; i < matrix.length; i++) {
+            for (int j = 0; j < matrix[i].length; j++) {
+                System.out.print(matrix[i][j] + " ");
+            }
+            System.out.println();
+        }
+        System.out.println();
+    }
+}