代码实现:将一个数组逆序输出。

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//将一个数组逆序输出。 public class Test {     public static void main(String[] args) {         int[] a = {1,2,3,4,5,6,7,8,9};         for (int i = 0; i < a.length/2; i++) {             int temp = a[i];             a[i] = a[a.length-1-i];             a[a.length-1-i] = temp;         }         for (int i : a) {             System.out.print(i+" ");         }     }   }