sorting bubble sort code example

Example 1: Bubble sort

class Sort 
{
    static void bubbleSort(int arr[], int n)
    {                                       
        if (n == 1)                     //passes are done
        {
            return;
        }

        for (int i=0; i<n-1; i++)       //iteration through unsorted elements
        {
            if (arr[i] > arr[i+1])      //check if the elements are in order
            {                           //if not, swap them
                int temp = arr[i];
                arr[i] = arr[i+1];
                arr[i+1] = temp;
            }
        }
            
        bubbleSort(arr, n-1);           //one pass done, proceed to the next
    }

    void display(int arr[])                 //display the array
    {  
        for (int i=0; i<arr.length; ++i) 
        {
            System.out.print(arr[i]+" ");
        } 
    } 
     
    public static void main(String[] args)
    {
        Sort ob = new Sort();
        int arr[] = {6, 4, 5, 12, 2, 11, 9};    
        bubbleSort(arr, arr.length);
        ob.display(arr);
    }
}

Example 2: bubble sort

/*bubble sort;timecomplexity=O(n){best case}
               time complexity=O(n^2){worst case}
               space complexity=O(n);auxiliary space commplexity=O(1)
*/
#include <iostream>

using namespace std;
void swap(int*,int*);
void bubble_sort(int arr[],int n)
{
    for(int i=0;i<n-1;i++)
    {
        for(int j=0;j<n-1-i;j++)
        {
            if(arr[j]>arr[j+1])
            {
                swap(&arr[j],&arr[j+1]);
            }
        }
    }
}
void display(int arr[],int n)
{
    for(int i=0;i<n;i++)
    {
        cout<<arr[i]<<" ";
    }
    cout<<endl;
}

int main()
{
    int n;
    cout<<"enter the size of the array:"<<endl;
    cin>>n;
    int array_of_numbers[n];
    cout<<"enter the elements of the array"<<endl;
    for(int i=0;i<n;i++)
    {
        cin>>array_of_numbers[i];
    }
    cout<<"array as it was entered:"<<endl;
    display(array_of_numbers,n);
    bubble_sort(array_of_numbers,n);
    cout<<"array after bubble sort:"<<endl;
    display(array_of_numbers,n);
    return 0;
}
void swap(int *a,int *b)
{
    int temp=*a;
    *a=*b;
    *b=temp;
}