bubble sorting algorithm with code......

 here is the code of bubble sorting ...

public class bubblesort {
    public static void printarray(int arr[]){
        for(int i=0; i< arr.length; i++){
            System.out.print(arr[i]+" ");
        }
        System.out.println("make face happy the array is sorted ->>");
    }
    public static void main(String[] args) {
        int arr[] = {7, 8, 3, 1, 2};
        //time complexity=O(n^2)
        //bubble sorting
        for (int i = 0; i < arr.length - 1; i++) {
            for (int j = 0; j < arr.length - i - 1; j++) {
                if (arr[j] > arr[j + 1]) {
                    //swapping
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
        }
        printarray(arr);
    }
}