冒泡排序

package com.kite.test.bubbleSort;

public class BubbleSort {

  public static void main(String[] args) {

    // 待排序数组
    int arr[] = { 1, 3, 4, 5, 9, 7, 10, 8, 2, 6 };

    // 升序排列
    bubbleSortAsc(arr);

    // 降序排列
    bubbleSortDesc(arr);
  }


  /**
  * 冒泡排序Asc
  *
  * @return
  */
  public static void bubbleSortAsc(int[] arr) {

    if (arr != null) {
      for (int i = 0; i < arr.length; i++) {
        for (int j = i + 1; j < arr.length; j++) {
            int midNum = 0;
            if (arr[i] > arr[j]) {
               midNum = arr[i];
               arr[i] = arr[j];
               arr[j] = midNum;
            }
          }
        }
      System.out.print("\r\b升序: ");


      for (int m = 0; m < arr.length; m++) {
         System.out.print(arr[m] + " ");
      }
    }
  }

  /**
   * 冒泡排序Desc
     *
         * @return
     */
   public static void bubbleSortDesc(int[] arr) {

      if (arr != null) {
        for (int i = 0; i < arr.length; i++) {
          for (int j = i + 1; j < arr.length; j++) {
            int midNum = 0;
            if (arr[i] < arr[j]) {
            midNum = arr[j];
            arr[j] = arr[i];
            arr[i] = midNum;
          }
        }
      }
    System.out.print("\r\b降序: ");


    for (int m = 0; m < arr.length; m++) {
      System.out.print(arr[m] + " ");
    }
  }
 }
}

posted @ 2013-06-08 10:58  钢板  阅读(116)  评论(0编辑  收藏  举报