ArraySum.java

public class ArraySum {
    public static void main(String[] args) {
        
        // original logic: sum elements in an int array
        int[] arr = {2, 3, 5, 3, 5};
        int sum = 0; 
        
        for (int counter : arr) {
            sum += counter;
        }
        System.out.println("Sum: " + sum);
        System.out.println(); 

        // simple string array example
        String[] fruits = {"Apple", "Banana", "Cherry", "Mango"};
        System.out.print("Fruits: ");
        
        for (String fruit : fruits) {
            System.out.print(fruit + " | ");
        }
        System.out.println("\n"); 

        // calculate total and average price
        double[] prices = {19.99, 15.50, 5.00, 10.25};
        double totalCost = 0;
        
        for (double price : prices) {
            totalCost += price;
        }
        
        double averagePrice = totalCost / prices.length;
        
        System.out.println("Total: $" + totalCost);
        System.out.println("Avg: $" + averagePrice);
        System.out.println();

        // print a 3x3 grid
        int[][] grid = {
            {1, 2, 3}, 
            {4, 5, 6}, 
            {7, 8, 9}  
        };
        
        for (int row = 0; row < grid.length; row++) {
            for (int col = 0; col < grid[row].length; col++) {
                System.out.print(grid[row][col] + " "); 
            }
            System.out.println(); // drop to next line after row finishes
        }
    }
}