Java冒泡排序

public class Tester {

   static void bubbleSort(int[] arr) {  

      int n = arr.length;  

      int temp = 0;  

      for(int i = 0; i < n; i++){  

         for(int j = 1; j < (n-i); j++){  

            if(arr[j-1] > arr[j]){  

               //swap elements  

               temp = arr[j-1];  

               arr[j-1] = arr[j];  

               arr[j] = temp;  

            }          

         }  

      }

   }  

   public static void main(String[] args) {  

      int arr[] = {21,60,32,01,41,34,5};

      System.out.println("Before Bubble Sort");  

      for(int i = 0; i < arr.length; i++){  

         System.out.print(arr[i] + " ");  

      }  

      System.out.println();  

      bubbleSort(arr);

      System.out.println("After Bubble Sort");  

      for(int i = 0; i < arr.length; i++){  

         System.out.print(arr[i] + " ");  

      }  

   }

}