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Write a Java program to sort a array using Bubble Sort algorithm?

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Write a Java program to sort a array using Bubble Sort algorithm?
posted Aug 11, 2015 by Mohammed Hussain

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1 Answer

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Best answer
import java.util.Scanner;

class BubbleSort {
  public static void main(String []args) {
    int n, c, d, swap;
    Scanner in = new Scanner(System.in);

    System.out.println("Input number of integers to sort");
    n = in.nextInt();

    int array[] = new int[n];

    System.out.println("Enter " + n + " integers");

    for (c = 0; c < n; c++) 
      array[c] = in.nextInt();

    for (c = 0; c < ( n - 1 ); c++) {
      for (d = 0; d < n - c - 1; d++) {
        if (array[d] > array[d+1]) /* For descending order use < */
        {
          swap       = array[d];
          array[d]   = array[d+1];
          array[d+1] = swap;
        }
      }
    }

    System.out.println("Sorted list of numbers");

    for (c = 0; c < n; c++) 
      System.out.println(array[c]);
  }
}

Complexity of bubble sort is O(n2) which makes it a less frequent option for arranging in sorted order when quantity of numbers is high.

answer Aug 14, 2015 by Karthick.c
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