将数组的值倒序输出

/**
 * 将数组的数值倒序输出
 *
 */
public class ExchangeNum {

	public static void main(String[] args) {
		 int a[]={0,1,2,3,4,5,6,7};// 偶数个
//		int a[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };// 奇数个
		exchange(a);
		for (int i = 0; i < a.length; i++)
			System.out.print(a[i] + "\t");
	}

	public static void exchange(int a[]) {
		int x = a.length / 2;
		for (int i = 0; i < x; i++)
			swap(a, i, (a.length - i - 1));
	}

	public static void swap(int a[], int x, int y) {
		int tmp = a[x];
		a[x] = a[y];
		a[y] = tmp;
	}

}