feat: add Iterating2DArraysWithLoop to demonstrate nested loop traversal

Implemented a simple Java example showcasing iteration over a 2D integer
array using nested for-loops. Prints each row and element sequentially,
illustrating matrix traversal and structured console output formatting.

Signed-off-by: https://github.com/Someshdiwan <[email protected]>

Author: Someshdiwan

Section9ArrayAB/Array 2.0/src/Iterating2DArraysWithLoop.java

@@ -0,0 +1,20 @@
+class Iterating2DArraysWithLoop {
+    public static void main(String[] args) {
+        // Define a 3x3 matrix with predefined values
+        int[][] matrix = {
+            {10, 20, 30}, // Initialize row 1 of the matrix
+            {40, 50, 60}, // Initialize row 2 of the matrix
+            {70, 80, 90}  // Initialize row 3 of the matrix
+        };
+
+        // Print a header to indicate the start of matrix iteration
+        System.out.println("Iterating over a 3x3 matrix:");
+        for (int i = 0; i < matrix.length; i++) { // Loop over each row of the matrix
+            System.out.print("Row " + (i + 1) + ": "); // Print the row number
+            for (int j = 0; j < matrix[i].length; j++) { // Loop over each column in the current row
+                System.out.print(matrix[i][j] + " "); // Print each element in the row followed by a space
+            }
+            System.out.println(); // Move to the next line after printing all columns in a row
+        }
+    }
+}