Let’s learn java program bubble sort in ascending and descending order.
Java program bubble sort in ascending and descending order
Here’s bubble sort in ascending order and descending order.
Bubble sort ascending order
import java.util.Scanner; public class BubbleSortAscending { public static void main(String[] args) { int number, a, b, temp; Scanner sc = new Scanner(System.in); System.out.println("Please enter number of integers: "); number = sc.nextInt(); int[] arrInput = new int[number]; System.out.println("Enter " + number + " integers: "); for(a = 0; a < number; a++) arrInput[a] = sc.nextInt(); for(a = 0; a < (number - 1); a++) { for(b = 0; b < number - a - 1; b++) { // logic to sort in ascending order if(arrInput[b] > arrInput[b + 1]) { temp = arrInput[b]; arrInput[b] = arrInput[b + 1]; arrInput[b + 1] = temp; } } } sc.close(); System.out.println("Sorted integers: "); for(a = 0; a < number; a++) System.out.println(arrInput[a]); } }
Output:
Please enter number of integers: 7
Enter 7 integers: 12 26 15 39 58 48 59
Sorted integers: 12 15 26 39 48 58 59
Bubble sort descending order
import java.util.Scanner; public class BubbleSortDescending { public static void main(String[] args) { int number, a, b, temp; Scanner sc = new Scanner(System.in); System.out.println("Please enter number of integers: "); number = sc.nextInt(); int[] arrInput = new int[number]; System.out.println("Enter " + number + " integers: "); for(a = 0; a < number; a++) arrInput[a] = sc.nextInt(); for(a = 0; a < (number - 1); a++) { for(b = 0; b < number - a - 1; b++) { // logic to sort in descending order if(arrInput[b] < arrInput[b + 1]) { temp = arrInput[b]; arrInput[b] = arrInput[b + 1]; arrInput[b + 1] = temp; } } } sc.close(); System.out.println("Sorted integers: "); for(a = 0; a < number; a++) System.out.println(arrInput[a]); } }
Output:
Please enter number of integers: 7
Enter 7 integers: 12 26 15 39 58 48 59
Sorted integers: 59 58 48 39 26 15 12
Also read – if else in java