Bubble Sort

// Java program for Bubble Sort
public class BubbleSort {
    public static void main(String[] args) {
        int[] arr = {5, 1, 4, 2, 8};

        // Outer loop for each pass
        for (int i = 0; i < arr.length - 1; i++) {
            // Inner loop for pairwise comparisons
            for (int j = 0; j < arr.length - i - 1; j++) {
                // Swap if elements are in wrong order
                if (arr[j] > arr[j + 1]) {
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
        }

        // Print sorted array
        System.out.print("Sorted array: ");
        for (int num : arr) {
            System.out.print(num + " ");
        }
    }
}