Bubble_Sort.java

package com.devi;
import java.util.Arrays;

public class Bubble_Sort {
    public static void main(String[] args) {
        int[] arr = {3,1,5,4,2};
        bubble(arr);
        System.out.println(Arrays.toString(arr));
    }
    static void bubble(int[] arr) {
        // run the steps n-1 times
        for (int i = 0; i <= arr.length-1; i++) {
            boolean swapped = false;
            // for each step, max item will come at the last respective index
            for (int j = 1; j <= arr.length - i - 1; j++) {
                // swap if the item is smaller than the previous item
                if (arr[j] < arr[j - 1]) {
                    int temp = arr[j];
                    arr[j] = arr[j - 1];
                    arr[j - 1] = temp;
                    swapped = true;
                }
            }
            // if you did not swap for a particular vaue of i, it means the array is sorted
            if (!swapped) {
                break;
            }

        }
    }
}