public class Main {
	public static void main(String[] args) {
		//int[] ns = { 1, 4, 9, 16, 25 };
		// 1倒序打印数组元素:
//		for (int i = ns.length-1; i>=0; i--) {
//			System.out.println(ns);
//		}
		//2降序排列
		int[] ns = {28, 12, 89, 73, 65, 18, 96, 50, 8, 36};
		//排序前
		System.out.println(Arrays.toString(ns));
		Arrays.sort(ns);
		int nt[] = new int[ns.length];
		for(int i =0;i<ns.length;i++) {
			nt[i]=ns[ns.length-i-1];
		}
		ns = nt;
		System.out.println(Arrays.toString(ns));
		if(Arrays.toString(ns).equals("[96, 89, 73, 65, 50, 36, 28, 18, 12, 8]")) {
			System.out.println("测试成功");
		} else {
			System.out.println("测试失败");
		}
	}
}