Java示例冒泡排序

public class HelloWorld {

   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]) {

               temp = arr[j-1];

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

               arr[j] = temp;

            }

         }

      }

   }  

   public static void main(String[] args) {

      int arr[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 };

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



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

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

      }

      System.out.println();

      bubbleSort(arr);

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



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

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

      }

   }  

}